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opencv_apps package from opencv_apps repo

opencv_apps

ROS Distro
lunar

Package Summary

Tags No category tags.
Version 2.0.3
License BSD
Build type CATKIN
Use RECOMMENDED

Repository Summary

Checkout URI https://github.com/ros-perception/opencv_apps.git
VCS Type git
VCS Version indigo
Last Updated 2025-05-22
Dev Status DEVELOPED
Released RELEASED
Tags No category tags.
Contributing Help Wanted (-)
Good First Issues (-)
Pull Requests to Review (-)

Package Description

Additional Links

No additional links.

Maintainers

  • Kei Okada

Authors

  • Kei Okada

opencv_apps

Travis CI Build Status

Indigo Trusty Build Status

Kinetic Xenial Build Status

Melodic Bionic Build Status

Documentation http://wiki.ros.org/opencv_apps

CHANGELOG

Changelog for package opencv_apps

2.0.3 (2025-05-22)

  • [lk_flow] Keep matching information for sparse optical flow (#149)
  • use bgr8 for output visualization (#145)
  • add ROS-O test (#147)
  • Suppress cmake warning (#146)
  • [TEST] Fix catkin_lint version 1.6.18 to avoid [cmake_minimum_required]{.title-ref} error (#143)
  • Add sync_.reset/async_.reset to destructor in face_recognition (#139)
  • fix github actions (#140)
  • fix missing .git directory (#136)
  • Add histogram equalization default and clahe (#126)
  • check all output of test/test-pyramids.test (#127)
  • tests: properly remap camera_info (#125)
  • add Morphology Transformations nodelet (#122)
  • add test to check when adding two images, whcih has different size. (#123)
  • contour_moments_nodelet: don't publish empty image (#124)
  • Add Lab color filter (#114)
  • add test to check on debain_unstable (#121)
  • Remove timestamp from face_data.tar.gz (#117)
  • use snapshot of rosdep list (#120)
  • fix travis, speed up GA tests (#116)
  • add .github/workflows (#115)
  • Contributors: Aoi Nakane, Jochen Sprickerhof, Kei Okada, Martin Günther, Naoto Tsukamoto, Shingo Kitagawa, Yuki Furuta, Iori Yanokura, Ivan Oliveira Tarifa

2.0.2 (2020-08-19)

  • .travis.yml: add noetic test (#108)
    • support oepncv4 for face detection launch/test files
    • convert img_gray every loop, this fixes [ERROR] [1597757072.115502734]: Image processing error: Matrix operand is an empty matrix. checkOperandsExist ../modules/core/src/matrix_expressions.cpp 23 errors
    • check CV_VERSION_VERSION > 4
    • add g++ static to package.xml
    • use python3 for noetic
    • .travis.yml : add CHECK_PYTHON3_COMPILE
    • .travis.yml: add noetic test
  • fix travis (#106)
    • add more package to CATKIN_DEPENDS
    • add image_view to run_depends
  • add hot fix for hydro test (#98)
    • add doublequote arount $TEST
    • add hot fix for hydro test
  • Improved variable names and comments (#95)
    • Improved variable names and comments: The comments and variable names were the opposite of what was functionally happening in the code. No functional change to this commit, just better readability and maintainability.
  • setup EoL repository (#96)
  • Contributors: Gus Crowards, Kei Okada

2.0.1 (2019-04-22)

  • support catkin_lint and clang-format tests in travis.yml (#93)
    • override is not supported gcc4.6 (12.04), remove this fix and add NOLINT
    • clang-tidy code need c++11
    • fix code by run-clang-tidy -fix
    • fix format by clang-format
    • fix CMakeLists.txt and package.xml for catkin_lint
    • support catkin_lint and clang-format tests
  • add queue_size parameter to all nodes, see #83 (#92)
    • add queue_size arg to launch files
    • sometimes simple_example_test fails with 'average rate (36.121Hz) exceeded maximum (35.000Hz)'

File truncated at 100 lines see the full file

Launch files

  • launch/adding_images.launch
      • node_name [default: adding_images]
      • image1 [default: image1] — The image topic. Should be remapped to the name of the real image topic.
      • image2 [default: image2] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • alpha [default: 0.5] — Weight of the first array elements
      • gamma [default: 0] — Scalar added to each sum
      • approximate_sync [default: false] — Flag of approximate_sync. If this value is false, image1 and image2 synchronize exact time.
  • launch/camshift.launch
      • node_name [default: camshift]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram [default: [0.0, 255.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]] — Histogram of tracked color object
      • vmin [default: 10] — Min threshould of lightness.
      • vmax [default: 230] — Max threshould of lightness.
      • smin [default: 60] — Min value of saturation.
  • launch/contour_moments.launch
      • node_name [default: contour_moments]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 100] — Canny Edge low Threshold
  • launch/convex_hull.launch
      • node_name [default: convex_hull]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/corner_harris.launch
      • node_name [default: corner_harris]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 200] — Threshold value of a circle around corners's norm
  • launch/discrete_fourier_transform.launch
      • node_name [default: discrete_fourier_transform]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 1] — Specigy queue_size of input image subscribers
  • launch/edge_detection.launch
      • node_name [default: edge_detection]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • edge_type [default: 0] — Specify edge dtection methods. 0: Sobel Derivatives, 1: Lapalace Operator, 2, Canny Edge Detector.
      • canny_threshold1 [default: 100] — Specify second canny threashold value.
      • canny_threshold2 [default: 200] — Specity first canny threashold value.
      • apertureSize [default: 3] — Aperture size for the Sobel() operator.
      • apply_blur_pre [default: true] — Flag, applying Blur() to input image
      • postBlurSize [default: 13] — Aperture size for the Blur() to input image()
      • postBlurSigma [default: 3.2] — Sigma for the GaussianBlur() to input image.
      • apply_blur_post [default: false] — Flag, applying GaussinaBlur() to output(edge) image
      • L2gradient [default: false] — Flag, L2Gradient
  • launch/equalize_histogram.launch
      • node_name [default: equalize_histogram]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram_equalization_type [default: 0] — Specify histogram equaliztion methods. 0: Default, 1: Clahe
      • clahe_clip_limit [default: 255.0] — The maximum allowed field value Clip Limit
      • clahe_tile_size_x [default: 300] — The maximum allowed field value Threshold X Limit
      • clahe_tile_size_y [default: 300] — The maximum allowed field value Threshold Y Limit
      • use_opencl [default: true] — Enable or disable OpenCL
  • launch/face_detection.launch
      • node_name [default: face_detection]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: $(arg use_opencv3)]
      • use_opencv4 [default: false]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
  • launch/face_recognition.launch
      • launch_face_detection [default: true]
      • launch_trainer [default: true]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: false]
      • use_opencv4 [default: false]
      • debug_view [default: true]
      • queue_size [default: 100] — Specigy queue_size of input image subscribers
      • image [default: image]
      • data_dir [default: ~/.ros/opencv_apps/face_data]
  • launch/fback_flow.launch
      • node_name [default: fback_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/find_contours.launch
      • node_name [default: find_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 10] — Lower threshold for the internal Canny edge detector.
  • launch/general_contours.launch
      • node_name [default: general_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/goodfeature_track.launch
      • node_name [default: goodfeature_track]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • max_corners [default: 23] — Maximum number of corners to return. If there are more corners than are found, the strongest of them is returned.
  • launch/hls_color_filter.launch
      • node_name [default: hls_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • l_limit_max [default: 255] — The maximum allowed field value Luminance
      • l_limit_min [default: 50] — The minimum allowed field value Luminance
  • launch/hough_circles.launch
      • node_name [default: hough_circles]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_threshold [default: 200] — Upper threshold for the internal Canny edge detector.
      • accumulator_threshold [default: 50] — Threshold for center detection.
      • gaussian_blur_size [default: 9] — The size of gaussian blur (should be odd number)
      • gaussian_sigma_x [default: 2] — Sigma x of gaussian kernel
      • gaussian_sigma_y [default: 2] — Sigma y of gaussian kernel
      • dp [default: 2] — The inverse ratio of resolution.
      • min_circle_radius [default: 0] — The minimum size of the circle, If unknown, put zero as default
      • max_circle_radius [default: 0] — The maximum size of the circle, If unknown, put zero as default.
  • launch/hough_lines.launch
      • node_name [default: hough_lines]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hough_type [default: 0] — Apecify Hough transform type, 0 for Standard Hough Detection and 1 for Probabilistic Hough Detection
      • threshold [default: 150] — Threshould value for hough line detection
      • rho [default: 1.0] — The resolution of the parameter r in pixels.
      • theta [default: 1.0] — The resolution of the parameter theta in radians.
      • minLineLength [default: 30] — The minimum number of points that can form a line.
      • maxLineGrap [default: 10] — The maximum gap between two points to be considered in the same line.
  • launch/hsv_color_filter.launch
      • node_name [default: hsv_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • v_limit_max [default: 255] — The maximum allowed field value Value
      • v_limit_min [default: 50] — The minimum allowed field value Value
  • launch/lab_color_filter.launch
      • node_name [default: lab_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • l_limit_max [default: 255] — The maximum allowed field value L*
      • l_limit_min [default: 50] — The minimum allowed field value L*
      • a_limit_max [default: 250] — The maximum allowed field value a*
      • a_limit_min [default: 0] — The minimum allowed field value a*
      • b_limit_max [default: 255] — The maximum allowed field value b*
      • b_limit_min [default: 150] — The minimum allowed field value b*
  • launch/lk_flow.launch
      • node_name [default: lk_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • quality_level [default: 0.01] — Parameter characterizing the minimal acceptance quality of image corners.
      • min_distance [default: 10] — Minimum possible Euclidean distance between the returned corners.
      • block_size [default: 3] — Size of an average block for computing a derivative covariation matrix over each pixel neighborhood.
      • harris_k [default: 0.04] — Free parameter of the Harris detector
  • launch/morphology.launch
      • node_name [default: morphology]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • morph_operator [default: 0] — Morphology Operation Methods 0: Opening, 1: Closing, 2: Gradient, 3: Top Hat, 4: Black Hat
      • morph_element [default: 0] — Type of the kernel 0: Rect, 1: Cross, 2: Ellipse
      • morph_size [default: 0] — Size of the kernel
  • launch/people_detect.launch
      • node_name [default: people_detect]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hit_threshold [default: 0] — Threshold for the distance between features and SVM classifying plane
      • win_stride [default: 8] — Window stride. It must be a multiple of block stride.
      • padding [default: 32] — Mock parameter to keep the CPU interface compatibility. It must be (0,0).
      • scale0 [default: 1.05] — Coefficient of the detection window increase.
      • group_threshold [default: 2] — Coefficient to regulate the similarity threshold. When detected, some objects can be covered by many rectangles. 0 means not to perform grouping.
  • launch/phase_corr.launch
      • node_name [default: phase_corr]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/pyramids.launch
      • node_name [default: pyramids]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show pyramids image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • pyramids_type [default: 0] — Specify pyramids Up/Down. 0: Up size(zoom in), 1: Down size(zoom out).
      • num_of_pyramids [default: 0] — Number of Up/Down sampling.
  • launch/rgb_color_filter.launch
      • node_name [default: rgb_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • r_limit_max [default: 250] — The maximum allowed field value Red
      • r_limit_min [default: 50] — The minimum allowed field value Red
      • g_limit_max [default: 200] — The maximum allowed field value Green
      • g_limit_min [default: 100] — The minimum allowed field value Green
      • b_limit_max [default: 150] — The maximum allowed field value Blue
      • b_limit_min [default: 20] — The minimum allowed field value Blue
  • launch/segment_objects.launch
      • node_name [default: segment_objects]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/simple_flow.launch
      • node_name [default: simple_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • scale [default: 8] — Specify the scale factor to calculate optical flow.
  • launch/smoothing.launch
      • node_name [default: smoothing]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • filter_type [default: 0] — Smoothing Filter Methods. 0:Homogeneous blur, 1:Gaussian blur, 2:Median blur, 3:Bilateral Filter.
      • kernel_size [default: 7] — Size of the kernel (only one because we use a square window). Must be odd.
  • launch/threshold.launch
      • node_name [default: threshold]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • apply_otsu [default: false] — Decide applying Otsu's algotirhm threshold. If this value is true, threshold value will be ignored
      • threshold_type [default: 0] — Specify threshold types. 0: Binary threshold, 1: Binary inverted threshold, 2: Threshold truncated, 3: Threshold to zero, 4: Threshold to zero inverted
      • threshold [default: 150] — threshold value
      • max_binary [default: 255] — maximum value to use with the 0: Binary thresholding and 1: Binary inverted thresholding types.
  • launch/watershed_segmentation.launch
      • node_name [default: watershed_segmentation]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers

Plugins

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opencv_apps package from opencv_apps repo

opencv_apps

ROS Distro
lunar

Package Summary

Tags No category tags.
Version 2.0.3
License BSD
Build type CATKIN
Use RECOMMENDED

Repository Summary

Checkout URI https://github.com/ros-perception/opencv_apps.git
VCS Type git
VCS Version indigo
Last Updated 2025-05-22
Dev Status DEVELOPED
Released RELEASED
Tags No category tags.
Contributing Help Wanted (-)
Good First Issues (-)
Pull Requests to Review (-)

Package Description

Additional Links

No additional links.

Maintainers

  • Kei Okada

Authors

  • Kei Okada

opencv_apps

Travis CI Build Status

Indigo Trusty Build Status

Kinetic Xenial Build Status

Melodic Bionic Build Status

Documentation http://wiki.ros.org/opencv_apps

CHANGELOG

Changelog for package opencv_apps

2.0.3 (2025-05-22)

  • [lk_flow] Keep matching information for sparse optical flow (#149)
  • use bgr8 for output visualization (#145)
  • add ROS-O test (#147)
  • Suppress cmake warning (#146)
  • [TEST] Fix catkin_lint version 1.6.18 to avoid [cmake_minimum_required]{.title-ref} error (#143)
  • Add sync_.reset/async_.reset to destructor in face_recognition (#139)
  • fix github actions (#140)
  • fix missing .git directory (#136)
  • Add histogram equalization default and clahe (#126)
  • check all output of test/test-pyramids.test (#127)
  • tests: properly remap camera_info (#125)
  • add Morphology Transformations nodelet (#122)
  • add test to check when adding two images, whcih has different size. (#123)
  • contour_moments_nodelet: don't publish empty image (#124)
  • Add Lab color filter (#114)
  • add test to check on debain_unstable (#121)
  • Remove timestamp from face_data.tar.gz (#117)
  • use snapshot of rosdep list (#120)
  • fix travis, speed up GA tests (#116)
  • add .github/workflows (#115)
  • Contributors: Aoi Nakane, Jochen Sprickerhof, Kei Okada, Martin Günther, Naoto Tsukamoto, Shingo Kitagawa, Yuki Furuta, Iori Yanokura, Ivan Oliveira Tarifa

2.0.2 (2020-08-19)

  • .travis.yml: add noetic test (#108)
    • support oepncv4 for face detection launch/test files
    • convert img_gray every loop, this fixes [ERROR] [1597757072.115502734]: Image processing error: Matrix operand is an empty matrix. checkOperandsExist ../modules/core/src/matrix_expressions.cpp 23 errors
    • check CV_VERSION_VERSION > 4
    • add g++ static to package.xml
    • use python3 for noetic
    • .travis.yml : add CHECK_PYTHON3_COMPILE
    • .travis.yml: add noetic test
  • fix travis (#106)
    • add more package to CATKIN_DEPENDS
    • add image_view to run_depends
  • add hot fix for hydro test (#98)
    • add doublequote arount $TEST
    • add hot fix for hydro test
  • Improved variable names and comments (#95)
    • Improved variable names and comments: The comments and variable names were the opposite of what was functionally happening in the code. No functional change to this commit, just better readability and maintainability.
  • setup EoL repository (#96)
  • Contributors: Gus Crowards, Kei Okada

2.0.1 (2019-04-22)

  • support catkin_lint and clang-format tests in travis.yml (#93)
    • override is not supported gcc4.6 (12.04), remove this fix and add NOLINT
    • clang-tidy code need c++11
    • fix code by run-clang-tidy -fix
    • fix format by clang-format
    • fix CMakeLists.txt and package.xml for catkin_lint
    • support catkin_lint and clang-format tests
  • add queue_size parameter to all nodes, see #83 (#92)
    • add queue_size arg to launch files
    • sometimes simple_example_test fails with 'average rate (36.121Hz) exceeded maximum (35.000Hz)'

File truncated at 100 lines see the full file

Launch files

  • launch/adding_images.launch
      • node_name [default: adding_images]
      • image1 [default: image1] — The image topic. Should be remapped to the name of the real image topic.
      • image2 [default: image2] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • alpha [default: 0.5] — Weight of the first array elements
      • gamma [default: 0] — Scalar added to each sum
      • approximate_sync [default: false] — Flag of approximate_sync. If this value is false, image1 and image2 synchronize exact time.
  • launch/camshift.launch
      • node_name [default: camshift]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram [default: [0.0, 255.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]] — Histogram of tracked color object
      • vmin [default: 10] — Min threshould of lightness.
      • vmax [default: 230] — Max threshould of lightness.
      • smin [default: 60] — Min value of saturation.
  • launch/contour_moments.launch
      • node_name [default: contour_moments]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 100] — Canny Edge low Threshold
  • launch/convex_hull.launch
      • node_name [default: convex_hull]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/corner_harris.launch
      • node_name [default: corner_harris]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 200] — Threshold value of a circle around corners's norm
  • launch/discrete_fourier_transform.launch
      • node_name [default: discrete_fourier_transform]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 1] — Specigy queue_size of input image subscribers
  • launch/edge_detection.launch
      • node_name [default: edge_detection]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • edge_type [default: 0] — Specify edge dtection methods. 0: Sobel Derivatives, 1: Lapalace Operator, 2, Canny Edge Detector.
      • canny_threshold1 [default: 100] — Specify second canny threashold value.
      • canny_threshold2 [default: 200] — Specity first canny threashold value.
      • apertureSize [default: 3] — Aperture size for the Sobel() operator.
      • apply_blur_pre [default: true] — Flag, applying Blur() to input image
      • postBlurSize [default: 13] — Aperture size for the Blur() to input image()
      • postBlurSigma [default: 3.2] — Sigma for the GaussianBlur() to input image.
      • apply_blur_post [default: false] — Flag, applying GaussinaBlur() to output(edge) image
      • L2gradient [default: false] — Flag, L2Gradient
  • launch/equalize_histogram.launch
      • node_name [default: equalize_histogram]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram_equalization_type [default: 0] — Specify histogram equaliztion methods. 0: Default, 1: Clahe
      • clahe_clip_limit [default: 255.0] — The maximum allowed field value Clip Limit
      • clahe_tile_size_x [default: 300] — The maximum allowed field value Threshold X Limit
      • clahe_tile_size_y [default: 300] — The maximum allowed field value Threshold Y Limit
      • use_opencl [default: true] — Enable or disable OpenCL
  • launch/face_detection.launch
      • node_name [default: face_detection]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: $(arg use_opencv3)]
      • use_opencv4 [default: false]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
  • launch/face_recognition.launch
      • launch_face_detection [default: true]
      • launch_trainer [default: true]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: false]
      • use_opencv4 [default: false]
      • debug_view [default: true]
      • queue_size [default: 100] — Specigy queue_size of input image subscribers
      • image [default: image]
      • data_dir [default: ~/.ros/opencv_apps/face_data]
  • launch/fback_flow.launch
      • node_name [default: fback_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/find_contours.launch
      • node_name [default: find_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 10] — Lower threshold for the internal Canny edge detector.
  • launch/general_contours.launch
      • node_name [default: general_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/goodfeature_track.launch
      • node_name [default: goodfeature_track]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • max_corners [default: 23] — Maximum number of corners to return. If there are more corners than are found, the strongest of them is returned.
  • launch/hls_color_filter.launch
      • node_name [default: hls_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • l_limit_max [default: 255] — The maximum allowed field value Luminance
      • l_limit_min [default: 50] — The minimum allowed field value Luminance
  • launch/hough_circles.launch
      • node_name [default: hough_circles]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_threshold [default: 200] — Upper threshold for the internal Canny edge detector.
      • accumulator_threshold [default: 50] — Threshold for center detection.
      • gaussian_blur_size [default: 9] — The size of gaussian blur (should be odd number)
      • gaussian_sigma_x [default: 2] — Sigma x of gaussian kernel
      • gaussian_sigma_y [default: 2] — Sigma y of gaussian kernel
      • dp [default: 2] — The inverse ratio of resolution.
      • min_circle_radius [default: 0] — The minimum size of the circle, If unknown, put zero as default
      • max_circle_radius [default: 0] — The maximum size of the circle, If unknown, put zero as default.
  • launch/hough_lines.launch
      • node_name [default: hough_lines]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hough_type [default: 0] — Apecify Hough transform type, 0 for Standard Hough Detection and 1 for Probabilistic Hough Detection
      • threshold [default: 150] — Threshould value for hough line detection
      • rho [default: 1.0] — The resolution of the parameter r in pixels.
      • theta [default: 1.0] — The resolution of the parameter theta in radians.
      • minLineLength [default: 30] — The minimum number of points that can form a line.
      • maxLineGrap [default: 10] — The maximum gap between two points to be considered in the same line.
  • launch/hsv_color_filter.launch
      • node_name [default: hsv_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • v_limit_max [default: 255] — The maximum allowed field value Value
      • v_limit_min [default: 50] — The minimum allowed field value Value
  • launch/lab_color_filter.launch
      • node_name [default: lab_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • l_limit_max [default: 255] — The maximum allowed field value L*
      • l_limit_min [default: 50] — The minimum allowed field value L*
      • a_limit_max [default: 250] — The maximum allowed field value a*
      • a_limit_min [default: 0] — The minimum allowed field value a*
      • b_limit_max [default: 255] — The maximum allowed field value b*
      • b_limit_min [default: 150] — The minimum allowed field value b*
  • launch/lk_flow.launch
      • node_name [default: lk_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • quality_level [default: 0.01] — Parameter characterizing the minimal acceptance quality of image corners.
      • min_distance [default: 10] — Minimum possible Euclidean distance between the returned corners.
      • block_size [default: 3] — Size of an average block for computing a derivative covariation matrix over each pixel neighborhood.
      • harris_k [default: 0.04] — Free parameter of the Harris detector
  • launch/morphology.launch
      • node_name [default: morphology]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • morph_operator [default: 0] — Morphology Operation Methods 0: Opening, 1: Closing, 2: Gradient, 3: Top Hat, 4: Black Hat
      • morph_element [default: 0] — Type of the kernel 0: Rect, 1: Cross, 2: Ellipse
      • morph_size [default: 0] — Size of the kernel
  • launch/people_detect.launch
      • node_name [default: people_detect]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hit_threshold [default: 0] — Threshold for the distance between features and SVM classifying plane
      • win_stride [default: 8] — Window stride. It must be a multiple of block stride.
      • padding [default: 32] — Mock parameter to keep the CPU interface compatibility. It must be (0,0).
      • scale0 [default: 1.05] — Coefficient of the detection window increase.
      • group_threshold [default: 2] — Coefficient to regulate the similarity threshold. When detected, some objects can be covered by many rectangles. 0 means not to perform grouping.
  • launch/phase_corr.launch
      • node_name [default: phase_corr]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/pyramids.launch
      • node_name [default: pyramids]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show pyramids image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • pyramids_type [default: 0] — Specify pyramids Up/Down. 0: Up size(zoom in), 1: Down size(zoom out).
      • num_of_pyramids [default: 0] — Number of Up/Down sampling.
  • launch/rgb_color_filter.launch
      • node_name [default: rgb_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • r_limit_max [default: 250] — The maximum allowed field value Red
      • r_limit_min [default: 50] — The minimum allowed field value Red
      • g_limit_max [default: 200] — The maximum allowed field value Green
      • g_limit_min [default: 100] — The minimum allowed field value Green
      • b_limit_max [default: 150] — The maximum allowed field value Blue
      • b_limit_min [default: 20] — The minimum allowed field value Blue
  • launch/segment_objects.launch
      • node_name [default: segment_objects]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/simple_flow.launch
      • node_name [default: simple_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • scale [default: 8] — Specify the scale factor to calculate optical flow.
  • launch/smoothing.launch
      • node_name [default: smoothing]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • filter_type [default: 0] — Smoothing Filter Methods. 0:Homogeneous blur, 1:Gaussian blur, 2:Median blur, 3:Bilateral Filter.
      • kernel_size [default: 7] — Size of the kernel (only one because we use a square window). Must be odd.
  • launch/threshold.launch
      • node_name [default: threshold]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • apply_otsu [default: false] — Decide applying Otsu's algotirhm threshold. If this value is true, threshold value will be ignored
      • threshold_type [default: 0] — Specify threshold types. 0: Binary threshold, 1: Binary inverted threshold, 2: Threshold truncated, 3: Threshold to zero, 4: Threshold to zero inverted
      • threshold [default: 150] — threshold value
      • max_binary [default: 255] — maximum value to use with the 0: Binary thresholding and 1: Binary inverted thresholding types.
  • launch/watershed_segmentation.launch
      • node_name [default: watershed_segmentation]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers

Plugins

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opencv_apps package from opencv_apps repo

opencv_apps

ROS Distro
lunar

Package Summary

Tags No category tags.
Version 2.0.3
License BSD
Build type CATKIN
Use RECOMMENDED

Repository Summary

Checkout URI https://github.com/ros-perception/opencv_apps.git
VCS Type git
VCS Version indigo
Last Updated 2025-05-22
Dev Status DEVELOPED
Released RELEASED
Tags No category tags.
Contributing Help Wanted (-)
Good First Issues (-)
Pull Requests to Review (-)

Package Description

Additional Links

No additional links.

Maintainers

  • Kei Okada

Authors

  • Kei Okada

opencv_apps

Travis CI Build Status

Indigo Trusty Build Status

Kinetic Xenial Build Status

Melodic Bionic Build Status

Documentation http://wiki.ros.org/opencv_apps

CHANGELOG

Changelog for package opencv_apps

2.0.3 (2025-05-22)

  • [lk_flow] Keep matching information for sparse optical flow (#149)
  • use bgr8 for output visualization (#145)
  • add ROS-O test (#147)
  • Suppress cmake warning (#146)
  • [TEST] Fix catkin_lint version 1.6.18 to avoid [cmake_minimum_required]{.title-ref} error (#143)
  • Add sync_.reset/async_.reset to destructor in face_recognition (#139)
  • fix github actions (#140)
  • fix missing .git directory (#136)
  • Add histogram equalization default and clahe (#126)
  • check all output of test/test-pyramids.test (#127)
  • tests: properly remap camera_info (#125)
  • add Morphology Transformations nodelet (#122)
  • add test to check when adding two images, whcih has different size. (#123)
  • contour_moments_nodelet: don't publish empty image (#124)
  • Add Lab color filter (#114)
  • add test to check on debain_unstable (#121)
  • Remove timestamp from face_data.tar.gz (#117)
  • use snapshot of rosdep list (#120)
  • fix travis, speed up GA tests (#116)
  • add .github/workflows (#115)
  • Contributors: Aoi Nakane, Jochen Sprickerhof, Kei Okada, Martin Günther, Naoto Tsukamoto, Shingo Kitagawa, Yuki Furuta, Iori Yanokura, Ivan Oliveira Tarifa

2.0.2 (2020-08-19)

  • .travis.yml: add noetic test (#108)
    • support oepncv4 for face detection launch/test files
    • convert img_gray every loop, this fixes [ERROR] [1597757072.115502734]: Image processing error: Matrix operand is an empty matrix. checkOperandsExist ../modules/core/src/matrix_expressions.cpp 23 errors
    • check CV_VERSION_VERSION > 4
    • add g++ static to package.xml
    • use python3 for noetic
    • .travis.yml : add CHECK_PYTHON3_COMPILE
    • .travis.yml: add noetic test
  • fix travis (#106)
    • add more package to CATKIN_DEPENDS
    • add image_view to run_depends
  • add hot fix for hydro test (#98)
    • add doublequote arount $TEST
    • add hot fix for hydro test
  • Improved variable names and comments (#95)
    • Improved variable names and comments: The comments and variable names were the opposite of what was functionally happening in the code. No functional change to this commit, just better readability and maintainability.
  • setup EoL repository (#96)
  • Contributors: Gus Crowards, Kei Okada

2.0.1 (2019-04-22)

  • support catkin_lint and clang-format tests in travis.yml (#93)
    • override is not supported gcc4.6 (12.04), remove this fix and add NOLINT
    • clang-tidy code need c++11
    • fix code by run-clang-tidy -fix
    • fix format by clang-format
    • fix CMakeLists.txt and package.xml for catkin_lint
    • support catkin_lint and clang-format tests
  • add queue_size parameter to all nodes, see #83 (#92)
    • add queue_size arg to launch files
    • sometimes simple_example_test fails with 'average rate (36.121Hz) exceeded maximum (35.000Hz)'

File truncated at 100 lines see the full file

Launch files

  • launch/adding_images.launch
      • node_name [default: adding_images]
      • image1 [default: image1] — The image topic. Should be remapped to the name of the real image topic.
      • image2 [default: image2] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • alpha [default: 0.5] — Weight of the first array elements
      • gamma [default: 0] — Scalar added to each sum
      • approximate_sync [default: false] — Flag of approximate_sync. If this value is false, image1 and image2 synchronize exact time.
  • launch/camshift.launch
      • node_name [default: camshift]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram [default: [0.0, 255.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]] — Histogram of tracked color object
      • vmin [default: 10] — Min threshould of lightness.
      • vmax [default: 230] — Max threshould of lightness.
      • smin [default: 60] — Min value of saturation.
  • launch/contour_moments.launch
      • node_name [default: contour_moments]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 100] — Canny Edge low Threshold
  • launch/convex_hull.launch
      • node_name [default: convex_hull]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/corner_harris.launch
      • node_name [default: corner_harris]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 200] — Threshold value of a circle around corners's norm
  • launch/discrete_fourier_transform.launch
      • node_name [default: discrete_fourier_transform]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 1] — Specigy queue_size of input image subscribers
  • launch/edge_detection.launch
      • node_name [default: edge_detection]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • edge_type [default: 0] — Specify edge dtection methods. 0: Sobel Derivatives, 1: Lapalace Operator, 2, Canny Edge Detector.
      • canny_threshold1 [default: 100] — Specify second canny threashold value.
      • canny_threshold2 [default: 200] — Specity first canny threashold value.
      • apertureSize [default: 3] — Aperture size for the Sobel() operator.
      • apply_blur_pre [default: true] — Flag, applying Blur() to input image
      • postBlurSize [default: 13] — Aperture size for the Blur() to input image()
      • postBlurSigma [default: 3.2] — Sigma for the GaussianBlur() to input image.
      • apply_blur_post [default: false] — Flag, applying GaussinaBlur() to output(edge) image
      • L2gradient [default: false] — Flag, L2Gradient
  • launch/equalize_histogram.launch
      • node_name [default: equalize_histogram]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram_equalization_type [default: 0] — Specify histogram equaliztion methods. 0: Default, 1: Clahe
      • clahe_clip_limit [default: 255.0] — The maximum allowed field value Clip Limit
      • clahe_tile_size_x [default: 300] — The maximum allowed field value Threshold X Limit
      • clahe_tile_size_y [default: 300] — The maximum allowed field value Threshold Y Limit
      • use_opencl [default: true] — Enable or disable OpenCL
  • launch/face_detection.launch
      • node_name [default: face_detection]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: $(arg use_opencv3)]
      • use_opencv4 [default: false]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
  • launch/face_recognition.launch
      • launch_face_detection [default: true]
      • launch_trainer [default: true]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: false]
      • use_opencv4 [default: false]
      • debug_view [default: true]
      • queue_size [default: 100] — Specigy queue_size of input image subscribers
      • image [default: image]
      • data_dir [default: ~/.ros/opencv_apps/face_data]
  • launch/fback_flow.launch
      • node_name [default: fback_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/find_contours.launch
      • node_name [default: find_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 10] — Lower threshold for the internal Canny edge detector.
  • launch/general_contours.launch
      • node_name [default: general_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/goodfeature_track.launch
      • node_name [default: goodfeature_track]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • max_corners [default: 23] — Maximum number of corners to return. If there are more corners than are found, the strongest of them is returned.
  • launch/hls_color_filter.launch
      • node_name [default: hls_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • l_limit_max [default: 255] — The maximum allowed field value Luminance
      • l_limit_min [default: 50] — The minimum allowed field value Luminance
  • launch/hough_circles.launch
      • node_name [default: hough_circles]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_threshold [default: 200] — Upper threshold for the internal Canny edge detector.
      • accumulator_threshold [default: 50] — Threshold for center detection.
      • gaussian_blur_size [default: 9] — The size of gaussian blur (should be odd number)
      • gaussian_sigma_x [default: 2] — Sigma x of gaussian kernel
      • gaussian_sigma_y [default: 2] — Sigma y of gaussian kernel
      • dp [default: 2] — The inverse ratio of resolution.
      • min_circle_radius [default: 0] — The minimum size of the circle, If unknown, put zero as default
      • max_circle_radius [default: 0] — The maximum size of the circle, If unknown, put zero as default.
  • launch/hough_lines.launch
      • node_name [default: hough_lines]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hough_type [default: 0] — Apecify Hough transform type, 0 for Standard Hough Detection and 1 for Probabilistic Hough Detection
      • threshold [default: 150] — Threshould value for hough line detection
      • rho [default: 1.0] — The resolution of the parameter r in pixels.
      • theta [default: 1.0] — The resolution of the parameter theta in radians.
      • minLineLength [default: 30] — The minimum number of points that can form a line.
      • maxLineGrap [default: 10] — The maximum gap between two points to be considered in the same line.
  • launch/hsv_color_filter.launch
      • node_name [default: hsv_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • v_limit_max [default: 255] — The maximum allowed field value Value
      • v_limit_min [default: 50] — The minimum allowed field value Value
  • launch/lab_color_filter.launch
      • node_name [default: lab_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • l_limit_max [default: 255] — The maximum allowed field value L*
      • l_limit_min [default: 50] — The minimum allowed field value L*
      • a_limit_max [default: 250] — The maximum allowed field value a*
      • a_limit_min [default: 0] — The minimum allowed field value a*
      • b_limit_max [default: 255] — The maximum allowed field value b*
      • b_limit_min [default: 150] — The minimum allowed field value b*
  • launch/lk_flow.launch
      • node_name [default: lk_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • quality_level [default: 0.01] — Parameter characterizing the minimal acceptance quality of image corners.
      • min_distance [default: 10] — Minimum possible Euclidean distance between the returned corners.
      • block_size [default: 3] — Size of an average block for computing a derivative covariation matrix over each pixel neighborhood.
      • harris_k [default: 0.04] — Free parameter of the Harris detector
  • launch/morphology.launch
      • node_name [default: morphology]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • morph_operator [default: 0] — Morphology Operation Methods 0: Opening, 1: Closing, 2: Gradient, 3: Top Hat, 4: Black Hat
      • morph_element [default: 0] — Type of the kernel 0: Rect, 1: Cross, 2: Ellipse
      • morph_size [default: 0] — Size of the kernel
  • launch/people_detect.launch
      • node_name [default: people_detect]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hit_threshold [default: 0] — Threshold for the distance between features and SVM classifying plane
      • win_stride [default: 8] — Window stride. It must be a multiple of block stride.
      • padding [default: 32] — Mock parameter to keep the CPU interface compatibility. It must be (0,0).
      • scale0 [default: 1.05] — Coefficient of the detection window increase.
      • group_threshold [default: 2] — Coefficient to regulate the similarity threshold. When detected, some objects can be covered by many rectangles. 0 means not to perform grouping.
  • launch/phase_corr.launch
      • node_name [default: phase_corr]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/pyramids.launch
      • node_name [default: pyramids]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show pyramids image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • pyramids_type [default: 0] — Specify pyramids Up/Down. 0: Up size(zoom in), 1: Down size(zoom out).
      • num_of_pyramids [default: 0] — Number of Up/Down sampling.
  • launch/rgb_color_filter.launch
      • node_name [default: rgb_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • r_limit_max [default: 250] — The maximum allowed field value Red
      • r_limit_min [default: 50] — The minimum allowed field value Red
      • g_limit_max [default: 200] — The maximum allowed field value Green
      • g_limit_min [default: 100] — The minimum allowed field value Green
      • b_limit_max [default: 150] — The maximum allowed field value Blue
      • b_limit_min [default: 20] — The minimum allowed field value Blue
  • launch/segment_objects.launch
      • node_name [default: segment_objects]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/simple_flow.launch
      • node_name [default: simple_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • scale [default: 8] — Specify the scale factor to calculate optical flow.
  • launch/smoothing.launch
      • node_name [default: smoothing]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • filter_type [default: 0] — Smoothing Filter Methods. 0:Homogeneous blur, 1:Gaussian blur, 2:Median blur, 3:Bilateral Filter.
      • kernel_size [default: 7] — Size of the kernel (only one because we use a square window). Must be odd.
  • launch/threshold.launch
      • node_name [default: threshold]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • apply_otsu [default: false] — Decide applying Otsu's algotirhm threshold. If this value is true, threshold value will be ignored
      • threshold_type [default: 0] — Specify threshold types. 0: Binary threshold, 1: Binary inverted threshold, 2: Threshold truncated, 3: Threshold to zero, 4: Threshold to zero inverted
      • threshold [default: 150] — threshold value
      • max_binary [default: 255] — maximum value to use with the 0: Binary thresholding and 1: Binary inverted thresholding types.
  • launch/watershed_segmentation.launch
      • node_name [default: watershed_segmentation]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers

Plugins

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opencv_apps package from opencv_apps repo

opencv_apps

ROS Distro
lunar

Package Summary

Tags No category tags.
Version 2.0.3
License BSD
Build type CATKIN
Use RECOMMENDED

Repository Summary

Checkout URI https://github.com/ros-perception/opencv_apps.git
VCS Type git
VCS Version indigo
Last Updated 2025-05-22
Dev Status DEVELOPED
Released RELEASED
Tags No category tags.
Contributing Help Wanted (-)
Good First Issues (-)
Pull Requests to Review (-)

Package Description

Additional Links

No additional links.

Maintainers

  • Kei Okada

Authors

  • Kei Okada

opencv_apps

Travis CI Build Status

Indigo Trusty Build Status

Kinetic Xenial Build Status

Melodic Bionic Build Status

Documentation http://wiki.ros.org/opencv_apps

CHANGELOG

Changelog for package opencv_apps

2.0.3 (2025-05-22)

  • [lk_flow] Keep matching information for sparse optical flow (#149)
  • use bgr8 for output visualization (#145)
  • add ROS-O test (#147)
  • Suppress cmake warning (#146)
  • [TEST] Fix catkin_lint version 1.6.18 to avoid [cmake_minimum_required]{.title-ref} error (#143)
  • Add sync_.reset/async_.reset to destructor in face_recognition (#139)
  • fix github actions (#140)
  • fix missing .git directory (#136)
  • Add histogram equalization default and clahe (#126)
  • check all output of test/test-pyramids.test (#127)
  • tests: properly remap camera_info (#125)
  • add Morphology Transformations nodelet (#122)
  • add test to check when adding two images, whcih has different size. (#123)
  • contour_moments_nodelet: don't publish empty image (#124)
  • Add Lab color filter (#114)
  • add test to check on debain_unstable (#121)
  • Remove timestamp from face_data.tar.gz (#117)
  • use snapshot of rosdep list (#120)
  • fix travis, speed up GA tests (#116)
  • add .github/workflows (#115)
  • Contributors: Aoi Nakane, Jochen Sprickerhof, Kei Okada, Martin Günther, Naoto Tsukamoto, Shingo Kitagawa, Yuki Furuta, Iori Yanokura, Ivan Oliveira Tarifa

2.0.2 (2020-08-19)

  • .travis.yml: add noetic test (#108)
    • support oepncv4 for face detection launch/test files
    • convert img_gray every loop, this fixes [ERROR] [1597757072.115502734]: Image processing error: Matrix operand is an empty matrix. checkOperandsExist ../modules/core/src/matrix_expressions.cpp 23 errors
    • check CV_VERSION_VERSION > 4
    • add g++ static to package.xml
    • use python3 for noetic
    • .travis.yml : add CHECK_PYTHON3_COMPILE
    • .travis.yml: add noetic test
  • fix travis (#106)
    • add more package to CATKIN_DEPENDS
    • add image_view to run_depends
  • add hot fix for hydro test (#98)
    • add doublequote arount $TEST
    • add hot fix for hydro test
  • Improved variable names and comments (#95)
    • Improved variable names and comments: The comments and variable names were the opposite of what was functionally happening in the code. No functional change to this commit, just better readability and maintainability.
  • setup EoL repository (#96)
  • Contributors: Gus Crowards, Kei Okada

2.0.1 (2019-04-22)

  • support catkin_lint and clang-format tests in travis.yml (#93)
    • override is not supported gcc4.6 (12.04), remove this fix and add NOLINT
    • clang-tidy code need c++11
    • fix code by run-clang-tidy -fix
    • fix format by clang-format
    • fix CMakeLists.txt and package.xml for catkin_lint
    • support catkin_lint and clang-format tests
  • add queue_size parameter to all nodes, see #83 (#92)
    • add queue_size arg to launch files
    • sometimes simple_example_test fails with 'average rate (36.121Hz) exceeded maximum (35.000Hz)'

File truncated at 100 lines see the full file

Launch files

  • launch/adding_images.launch
      • node_name [default: adding_images]
      • image1 [default: image1] — The image topic. Should be remapped to the name of the real image topic.
      • image2 [default: image2] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • alpha [default: 0.5] — Weight of the first array elements
      • gamma [default: 0] — Scalar added to each sum
      • approximate_sync [default: false] — Flag of approximate_sync. If this value is false, image1 and image2 synchronize exact time.
  • launch/camshift.launch
      • node_name [default: camshift]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram [default: [0.0, 255.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]] — Histogram of tracked color object
      • vmin [default: 10] — Min threshould of lightness.
      • vmax [default: 230] — Max threshould of lightness.
      • smin [default: 60] — Min value of saturation.
  • launch/contour_moments.launch
      • node_name [default: contour_moments]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 100] — Canny Edge low Threshold
  • launch/convex_hull.launch
      • node_name [default: convex_hull]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/corner_harris.launch
      • node_name [default: corner_harris]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 200] — Threshold value of a circle around corners's norm
  • launch/discrete_fourier_transform.launch
      • node_name [default: discrete_fourier_transform]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 1] — Specigy queue_size of input image subscribers
  • launch/edge_detection.launch
      • node_name [default: edge_detection]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • edge_type [default: 0] — Specify edge dtection methods. 0: Sobel Derivatives, 1: Lapalace Operator, 2, Canny Edge Detector.
      • canny_threshold1 [default: 100] — Specify second canny threashold value.
      • canny_threshold2 [default: 200] — Specity first canny threashold value.
      • apertureSize [default: 3] — Aperture size for the Sobel() operator.
      • apply_blur_pre [default: true] — Flag, applying Blur() to input image
      • postBlurSize [default: 13] — Aperture size for the Blur() to input image()
      • postBlurSigma [default: 3.2] — Sigma for the GaussianBlur() to input image.
      • apply_blur_post [default: false] — Flag, applying GaussinaBlur() to output(edge) image
      • L2gradient [default: false] — Flag, L2Gradient
  • launch/equalize_histogram.launch
      • node_name [default: equalize_histogram]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram_equalization_type [default: 0] — Specify histogram equaliztion methods. 0: Default, 1: Clahe
      • clahe_clip_limit [default: 255.0] — The maximum allowed field value Clip Limit
      • clahe_tile_size_x [default: 300] — The maximum allowed field value Threshold X Limit
      • clahe_tile_size_y [default: 300] — The maximum allowed field value Threshold Y Limit
      • use_opencl [default: true] — Enable or disable OpenCL
  • launch/face_detection.launch
      • node_name [default: face_detection]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: $(arg use_opencv3)]
      • use_opencv4 [default: false]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
  • launch/face_recognition.launch
      • launch_face_detection [default: true]
      • launch_trainer [default: true]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: false]
      • use_opencv4 [default: false]
      • debug_view [default: true]
      • queue_size [default: 100] — Specigy queue_size of input image subscribers
      • image [default: image]
      • data_dir [default: ~/.ros/opencv_apps/face_data]
  • launch/fback_flow.launch
      • node_name [default: fback_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/find_contours.launch
      • node_name [default: find_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 10] — Lower threshold for the internal Canny edge detector.
  • launch/general_contours.launch
      • node_name [default: general_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/goodfeature_track.launch
      • node_name [default: goodfeature_track]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • max_corners [default: 23] — Maximum number of corners to return. If there are more corners than are found, the strongest of them is returned.
  • launch/hls_color_filter.launch
      • node_name [default: hls_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • l_limit_max [default: 255] — The maximum allowed field value Luminance
      • l_limit_min [default: 50] — The minimum allowed field value Luminance
  • launch/hough_circles.launch
      • node_name [default: hough_circles]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_threshold [default: 200] — Upper threshold for the internal Canny edge detector.
      • accumulator_threshold [default: 50] — Threshold for center detection.
      • gaussian_blur_size [default: 9] — The size of gaussian blur (should be odd number)
      • gaussian_sigma_x [default: 2] — Sigma x of gaussian kernel
      • gaussian_sigma_y [default: 2] — Sigma y of gaussian kernel
      • dp [default: 2] — The inverse ratio of resolution.
      • min_circle_radius [default: 0] — The minimum size of the circle, If unknown, put zero as default
      • max_circle_radius [default: 0] — The maximum size of the circle, If unknown, put zero as default.
  • launch/hough_lines.launch
      • node_name [default: hough_lines]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hough_type [default: 0] — Apecify Hough transform type, 0 for Standard Hough Detection and 1 for Probabilistic Hough Detection
      • threshold [default: 150] — Threshould value for hough line detection
      • rho [default: 1.0] — The resolution of the parameter r in pixels.
      • theta [default: 1.0] — The resolution of the parameter theta in radians.
      • minLineLength [default: 30] — The minimum number of points that can form a line.
      • maxLineGrap [default: 10] — The maximum gap between two points to be considered in the same line.
  • launch/hsv_color_filter.launch
      • node_name [default: hsv_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • v_limit_max [default: 255] — The maximum allowed field value Value
      • v_limit_min [default: 50] — The minimum allowed field value Value
  • launch/lab_color_filter.launch
      • node_name [default: lab_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • l_limit_max [default: 255] — The maximum allowed field value L*
      • l_limit_min [default: 50] — The minimum allowed field value L*
      • a_limit_max [default: 250] — The maximum allowed field value a*
      • a_limit_min [default: 0] — The minimum allowed field value a*
      • b_limit_max [default: 255] — The maximum allowed field value b*
      • b_limit_min [default: 150] — The minimum allowed field value b*
  • launch/lk_flow.launch
      • node_name [default: lk_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • quality_level [default: 0.01] — Parameter characterizing the minimal acceptance quality of image corners.
      • min_distance [default: 10] — Minimum possible Euclidean distance between the returned corners.
      • block_size [default: 3] — Size of an average block for computing a derivative covariation matrix over each pixel neighborhood.
      • harris_k [default: 0.04] — Free parameter of the Harris detector
  • launch/morphology.launch
      • node_name [default: morphology]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • morph_operator [default: 0] — Morphology Operation Methods 0: Opening, 1: Closing, 2: Gradient, 3: Top Hat, 4: Black Hat
      • morph_element [default: 0] — Type of the kernel 0: Rect, 1: Cross, 2: Ellipse
      • morph_size [default: 0] — Size of the kernel
  • launch/people_detect.launch
      • node_name [default: people_detect]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hit_threshold [default: 0] — Threshold for the distance between features and SVM classifying plane
      • win_stride [default: 8] — Window stride. It must be a multiple of block stride.
      • padding [default: 32] — Mock parameter to keep the CPU interface compatibility. It must be (0,0).
      • scale0 [default: 1.05] — Coefficient of the detection window increase.
      • group_threshold [default: 2] — Coefficient to regulate the similarity threshold. When detected, some objects can be covered by many rectangles. 0 means not to perform grouping.
  • launch/phase_corr.launch
      • node_name [default: phase_corr]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/pyramids.launch
      • node_name [default: pyramids]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show pyramids image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • pyramids_type [default: 0] — Specify pyramids Up/Down. 0: Up size(zoom in), 1: Down size(zoom out).
      • num_of_pyramids [default: 0] — Number of Up/Down sampling.
  • launch/rgb_color_filter.launch
      • node_name [default: rgb_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • r_limit_max [default: 250] — The maximum allowed field value Red
      • r_limit_min [default: 50] — The minimum allowed field value Red
      • g_limit_max [default: 200] — The maximum allowed field value Green
      • g_limit_min [default: 100] — The minimum allowed field value Green
      • b_limit_max [default: 150] — The maximum allowed field value Blue
      • b_limit_min [default: 20] — The minimum allowed field value Blue
  • launch/segment_objects.launch
      • node_name [default: segment_objects]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/simple_flow.launch
      • node_name [default: simple_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • scale [default: 8] — Specify the scale factor to calculate optical flow.
  • launch/smoothing.launch
      • node_name [default: smoothing]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • filter_type [default: 0] — Smoothing Filter Methods. 0:Homogeneous blur, 1:Gaussian blur, 2:Median blur, 3:Bilateral Filter.
      • kernel_size [default: 7] — Size of the kernel (only one because we use a square window). Must be odd.
  • launch/threshold.launch
      • node_name [default: threshold]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • apply_otsu [default: false] — Decide applying Otsu's algotirhm threshold. If this value is true, threshold value will be ignored
      • threshold_type [default: 0] — Specify threshold types. 0: Binary threshold, 1: Binary inverted threshold, 2: Threshold truncated, 3: Threshold to zero, 4: Threshold to zero inverted
      • threshold [default: 150] — threshold value
      • max_binary [default: 255] — maximum value to use with the 0: Binary thresholding and 1: Binary inverted thresholding types.
  • launch/watershed_segmentation.launch
      • node_name [default: watershed_segmentation]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers

Plugins

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opencv_apps package from opencv_apps repo

opencv_apps

ROS Distro
lunar

Package Summary

Tags No category tags.
Version 2.0.3
License BSD
Build type CATKIN
Use RECOMMENDED

Repository Summary

Checkout URI https://github.com/ros-perception/opencv_apps.git
VCS Type git
VCS Version indigo
Last Updated 2025-05-22
Dev Status DEVELOPED
Released RELEASED
Tags No category tags.
Contributing Help Wanted (-)
Good First Issues (-)
Pull Requests to Review (-)

Package Description

Additional Links

No additional links.

Maintainers

  • Kei Okada

Authors

  • Kei Okada

opencv_apps

Travis CI Build Status

Indigo Trusty Build Status

Kinetic Xenial Build Status

Melodic Bionic Build Status

Documentation http://wiki.ros.org/opencv_apps

CHANGELOG

Changelog for package opencv_apps

2.0.3 (2025-05-22)

  • [lk_flow] Keep matching information for sparse optical flow (#149)
  • use bgr8 for output visualization (#145)
  • add ROS-O test (#147)
  • Suppress cmake warning (#146)
  • [TEST] Fix catkin_lint version 1.6.18 to avoid [cmake_minimum_required]{.title-ref} error (#143)
  • Add sync_.reset/async_.reset to destructor in face_recognition (#139)
  • fix github actions (#140)
  • fix missing .git directory (#136)
  • Add histogram equalization default and clahe (#126)
  • check all output of test/test-pyramids.test (#127)
  • tests: properly remap camera_info (#125)
  • add Morphology Transformations nodelet (#122)
  • add test to check when adding two images, whcih has different size. (#123)
  • contour_moments_nodelet: don't publish empty image (#124)
  • Add Lab color filter (#114)
  • add test to check on debain_unstable (#121)
  • Remove timestamp from face_data.tar.gz (#117)
  • use snapshot of rosdep list (#120)
  • fix travis, speed up GA tests (#116)
  • add .github/workflows (#115)
  • Contributors: Aoi Nakane, Jochen Sprickerhof, Kei Okada, Martin Günther, Naoto Tsukamoto, Shingo Kitagawa, Yuki Furuta, Iori Yanokura, Ivan Oliveira Tarifa

2.0.2 (2020-08-19)

  • .travis.yml: add noetic test (#108)
    • support oepncv4 for face detection launch/test files
    • convert img_gray every loop, this fixes [ERROR] [1597757072.115502734]: Image processing error: Matrix operand is an empty matrix. checkOperandsExist ../modules/core/src/matrix_expressions.cpp 23 errors
    • check CV_VERSION_VERSION > 4
    • add g++ static to package.xml
    • use python3 for noetic
    • .travis.yml : add CHECK_PYTHON3_COMPILE
    • .travis.yml: add noetic test
  • fix travis (#106)
    • add more package to CATKIN_DEPENDS
    • add image_view to run_depends
  • add hot fix for hydro test (#98)
    • add doublequote arount $TEST
    • add hot fix for hydro test
  • Improved variable names and comments (#95)
    • Improved variable names and comments: The comments and variable names were the opposite of what was functionally happening in the code. No functional change to this commit, just better readability and maintainability.
  • setup EoL repository (#96)
  • Contributors: Gus Crowards, Kei Okada

2.0.1 (2019-04-22)

  • support catkin_lint and clang-format tests in travis.yml (#93)
    • override is not supported gcc4.6 (12.04), remove this fix and add NOLINT
    • clang-tidy code need c++11
    • fix code by run-clang-tidy -fix
    • fix format by clang-format
    • fix CMakeLists.txt and package.xml for catkin_lint
    • support catkin_lint and clang-format tests
  • add queue_size parameter to all nodes, see #83 (#92)
    • add queue_size arg to launch files
    • sometimes simple_example_test fails with 'average rate (36.121Hz) exceeded maximum (35.000Hz)'

File truncated at 100 lines see the full file

Launch files

  • launch/adding_images.launch
      • node_name [default: adding_images]
      • image1 [default: image1] — The image topic. Should be remapped to the name of the real image topic.
      • image2 [default: image2] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • alpha [default: 0.5] — Weight of the first array elements
      • gamma [default: 0] — Scalar added to each sum
      • approximate_sync [default: false] — Flag of approximate_sync. If this value is false, image1 and image2 synchronize exact time.
  • launch/camshift.launch
      • node_name [default: camshift]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram [default: [0.0, 255.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]] — Histogram of tracked color object
      • vmin [default: 10] — Min threshould of lightness.
      • vmax [default: 230] — Max threshould of lightness.
      • smin [default: 60] — Min value of saturation.
  • launch/contour_moments.launch
      • node_name [default: contour_moments]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 100] — Canny Edge low Threshold
  • launch/convex_hull.launch
      • node_name [default: convex_hull]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/corner_harris.launch
      • node_name [default: corner_harris]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 200] — Threshold value of a circle around corners's norm
  • launch/discrete_fourier_transform.launch
      • node_name [default: discrete_fourier_transform]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 1] — Specigy queue_size of input image subscribers
  • launch/edge_detection.launch
      • node_name [default: edge_detection]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • edge_type [default: 0] — Specify edge dtection methods. 0: Sobel Derivatives, 1: Lapalace Operator, 2, Canny Edge Detector.
      • canny_threshold1 [default: 100] — Specify second canny threashold value.
      • canny_threshold2 [default: 200] — Specity first canny threashold value.
      • apertureSize [default: 3] — Aperture size for the Sobel() operator.
      • apply_blur_pre [default: true] — Flag, applying Blur() to input image
      • postBlurSize [default: 13] — Aperture size for the Blur() to input image()
      • postBlurSigma [default: 3.2] — Sigma for the GaussianBlur() to input image.
      • apply_blur_post [default: false] — Flag, applying GaussinaBlur() to output(edge) image
      • L2gradient [default: false] — Flag, L2Gradient
  • launch/equalize_histogram.launch
      • node_name [default: equalize_histogram]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram_equalization_type [default: 0] — Specify histogram equaliztion methods. 0: Default, 1: Clahe
      • clahe_clip_limit [default: 255.0] — The maximum allowed field value Clip Limit
      • clahe_tile_size_x [default: 300] — The maximum allowed field value Threshold X Limit
      • clahe_tile_size_y [default: 300] — The maximum allowed field value Threshold Y Limit
      • use_opencl [default: true] — Enable or disable OpenCL
  • launch/face_detection.launch
      • node_name [default: face_detection]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: $(arg use_opencv3)]
      • use_opencv4 [default: false]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
  • launch/face_recognition.launch
      • launch_face_detection [default: true]
      • launch_trainer [default: true]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: false]
      • use_opencv4 [default: false]
      • debug_view [default: true]
      • queue_size [default: 100] — Specigy queue_size of input image subscribers
      • image [default: image]
      • data_dir [default: ~/.ros/opencv_apps/face_data]
  • launch/fback_flow.launch
      • node_name [default: fback_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/find_contours.launch
      • node_name [default: find_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 10] — Lower threshold for the internal Canny edge detector.
  • launch/general_contours.launch
      • node_name [default: general_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/goodfeature_track.launch
      • node_name [default: goodfeature_track]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • max_corners [default: 23] — Maximum number of corners to return. If there are more corners than are found, the strongest of them is returned.
  • launch/hls_color_filter.launch
      • node_name [default: hls_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • l_limit_max [default: 255] — The maximum allowed field value Luminance
      • l_limit_min [default: 50] — The minimum allowed field value Luminance
  • launch/hough_circles.launch
      • node_name [default: hough_circles]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_threshold [default: 200] — Upper threshold for the internal Canny edge detector.
      • accumulator_threshold [default: 50] — Threshold for center detection.
      • gaussian_blur_size [default: 9] — The size of gaussian blur (should be odd number)
      • gaussian_sigma_x [default: 2] — Sigma x of gaussian kernel
      • gaussian_sigma_y [default: 2] — Sigma y of gaussian kernel
      • dp [default: 2] — The inverse ratio of resolution.
      • min_circle_radius [default: 0] — The minimum size of the circle, If unknown, put zero as default
      • max_circle_radius [default: 0] — The maximum size of the circle, If unknown, put zero as default.
  • launch/hough_lines.launch
      • node_name [default: hough_lines]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hough_type [default: 0] — Apecify Hough transform type, 0 for Standard Hough Detection and 1 for Probabilistic Hough Detection
      • threshold [default: 150] — Threshould value for hough line detection
      • rho [default: 1.0] — The resolution of the parameter r in pixels.
      • theta [default: 1.0] — The resolution of the parameter theta in radians.
      • minLineLength [default: 30] — The minimum number of points that can form a line.
      • maxLineGrap [default: 10] — The maximum gap between two points to be considered in the same line.
  • launch/hsv_color_filter.launch
      • node_name [default: hsv_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • v_limit_max [default: 255] — The maximum allowed field value Value
      • v_limit_min [default: 50] — The minimum allowed field value Value
  • launch/lab_color_filter.launch
      • node_name [default: lab_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • l_limit_max [default: 255] — The maximum allowed field value L*
      • l_limit_min [default: 50] — The minimum allowed field value L*
      • a_limit_max [default: 250] — The maximum allowed field value a*
      • a_limit_min [default: 0] — The minimum allowed field value a*
      • b_limit_max [default: 255] — The maximum allowed field value b*
      • b_limit_min [default: 150] — The minimum allowed field value b*
  • launch/lk_flow.launch
      • node_name [default: lk_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • quality_level [default: 0.01] — Parameter characterizing the minimal acceptance quality of image corners.
      • min_distance [default: 10] — Minimum possible Euclidean distance between the returned corners.
      • block_size [default: 3] — Size of an average block for computing a derivative covariation matrix over each pixel neighborhood.
      • harris_k [default: 0.04] — Free parameter of the Harris detector
  • launch/morphology.launch
      • node_name [default: morphology]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • morph_operator [default: 0] — Morphology Operation Methods 0: Opening, 1: Closing, 2: Gradient, 3: Top Hat, 4: Black Hat
      • morph_element [default: 0] — Type of the kernel 0: Rect, 1: Cross, 2: Ellipse
      • morph_size [default: 0] — Size of the kernel
  • launch/people_detect.launch
      • node_name [default: people_detect]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hit_threshold [default: 0] — Threshold for the distance between features and SVM classifying plane
      • win_stride [default: 8] — Window stride. It must be a multiple of block stride.
      • padding [default: 32] — Mock parameter to keep the CPU interface compatibility. It must be (0,0).
      • scale0 [default: 1.05] — Coefficient of the detection window increase.
      • group_threshold [default: 2] — Coefficient to regulate the similarity threshold. When detected, some objects can be covered by many rectangles. 0 means not to perform grouping.
  • launch/phase_corr.launch
      • node_name [default: phase_corr]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/pyramids.launch
      • node_name [default: pyramids]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show pyramids image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • pyramids_type [default: 0] — Specify pyramids Up/Down. 0: Up size(zoom in), 1: Down size(zoom out).
      • num_of_pyramids [default: 0] — Number of Up/Down sampling.
  • launch/rgb_color_filter.launch
      • node_name [default: rgb_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • r_limit_max [default: 250] — The maximum allowed field value Red
      • r_limit_min [default: 50] — The minimum allowed field value Red
      • g_limit_max [default: 200] — The maximum allowed field value Green
      • g_limit_min [default: 100] — The minimum allowed field value Green
      • b_limit_max [default: 150] — The maximum allowed field value Blue
      • b_limit_min [default: 20] — The minimum allowed field value Blue
  • launch/segment_objects.launch
      • node_name [default: segment_objects]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/simple_flow.launch
      • node_name [default: simple_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • scale [default: 8] — Specify the scale factor to calculate optical flow.
  • launch/smoothing.launch
      • node_name [default: smoothing]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • filter_type [default: 0] — Smoothing Filter Methods. 0:Homogeneous blur, 1:Gaussian blur, 2:Median blur, 3:Bilateral Filter.
      • kernel_size [default: 7] — Size of the kernel (only one because we use a square window). Must be odd.
  • launch/threshold.launch
      • node_name [default: threshold]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • apply_otsu [default: false] — Decide applying Otsu's algotirhm threshold. If this value is true, threshold value will be ignored
      • threshold_type [default: 0] — Specify threshold types. 0: Binary threshold, 1: Binary inverted threshold, 2: Threshold truncated, 3: Threshold to zero, 4: Threshold to zero inverted
      • threshold [default: 150] — threshold value
      • max_binary [default: 255] — maximum value to use with the 0: Binary thresholding and 1: Binary inverted thresholding types.
  • launch/watershed_segmentation.launch
      • node_name [default: watershed_segmentation]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers

Plugins

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opencv_apps package from opencv_apps repo

opencv_apps

ROS Distro
lunar

Package Summary

Tags No category tags.
Version 2.0.3
License BSD
Build type CATKIN
Use RECOMMENDED

Repository Summary

Checkout URI https://github.com/ros-perception/opencv_apps.git
VCS Type git
VCS Version indigo
Last Updated 2025-05-22
Dev Status DEVELOPED
Released RELEASED
Tags No category tags.
Contributing Help Wanted (-)
Good First Issues (-)
Pull Requests to Review (-)

Package Description

Additional Links

No additional links.

Maintainers

  • Kei Okada

Authors

  • Kei Okada

opencv_apps

Travis CI Build Status

Indigo Trusty Build Status

Kinetic Xenial Build Status

Melodic Bionic Build Status

Documentation http://wiki.ros.org/opencv_apps

CHANGELOG

Changelog for package opencv_apps

2.0.3 (2025-05-22)

  • [lk_flow] Keep matching information for sparse optical flow (#149)
  • use bgr8 for output visualization (#145)
  • add ROS-O test (#147)
  • Suppress cmake warning (#146)
  • [TEST] Fix catkin_lint version 1.6.18 to avoid [cmake_minimum_required]{.title-ref} error (#143)
  • Add sync_.reset/async_.reset to destructor in face_recognition (#139)
  • fix github actions (#140)
  • fix missing .git directory (#136)
  • Add histogram equalization default and clahe (#126)
  • check all output of test/test-pyramids.test (#127)
  • tests: properly remap camera_info (#125)
  • add Morphology Transformations nodelet (#122)
  • add test to check when adding two images, whcih has different size. (#123)
  • contour_moments_nodelet: don't publish empty image (#124)
  • Add Lab color filter (#114)
  • add test to check on debain_unstable (#121)
  • Remove timestamp from face_data.tar.gz (#117)
  • use snapshot of rosdep list (#120)
  • fix travis, speed up GA tests (#116)
  • add .github/workflows (#115)
  • Contributors: Aoi Nakane, Jochen Sprickerhof, Kei Okada, Martin Günther, Naoto Tsukamoto, Shingo Kitagawa, Yuki Furuta, Iori Yanokura, Ivan Oliveira Tarifa

2.0.2 (2020-08-19)

  • .travis.yml: add noetic test (#108)
    • support oepncv4 for face detection launch/test files
    • convert img_gray every loop, this fixes [ERROR] [1597757072.115502734]: Image processing error: Matrix operand is an empty matrix. checkOperandsExist ../modules/core/src/matrix_expressions.cpp 23 errors
    • check CV_VERSION_VERSION > 4
    • add g++ static to package.xml
    • use python3 for noetic
    • .travis.yml : add CHECK_PYTHON3_COMPILE
    • .travis.yml: add noetic test
  • fix travis (#106)
    • add more package to CATKIN_DEPENDS
    • add image_view to run_depends
  • add hot fix for hydro test (#98)
    • add doublequote arount $TEST
    • add hot fix for hydro test
  • Improved variable names and comments (#95)
    • Improved variable names and comments: The comments and variable names were the opposite of what was functionally happening in the code. No functional change to this commit, just better readability and maintainability.
  • setup EoL repository (#96)
  • Contributors: Gus Crowards, Kei Okada

2.0.1 (2019-04-22)

  • support catkin_lint and clang-format tests in travis.yml (#93)
    • override is not supported gcc4.6 (12.04), remove this fix and add NOLINT
    • clang-tidy code need c++11
    • fix code by run-clang-tidy -fix
    • fix format by clang-format
    • fix CMakeLists.txt and package.xml for catkin_lint
    • support catkin_lint and clang-format tests
  • add queue_size parameter to all nodes, see #83 (#92)
    • add queue_size arg to launch files
    • sometimes simple_example_test fails with 'average rate (36.121Hz) exceeded maximum (35.000Hz)'

File truncated at 100 lines see the full file

Launch files

  • launch/adding_images.launch
      • node_name [default: adding_images]
      • image1 [default: image1] — The image topic. Should be remapped to the name of the real image topic.
      • image2 [default: image2] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • alpha [default: 0.5] — Weight of the first array elements
      • gamma [default: 0] — Scalar added to each sum
      • approximate_sync [default: false] — Flag of approximate_sync. If this value is false, image1 and image2 synchronize exact time.
  • launch/camshift.launch
      • node_name [default: camshift]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram [default: [0.0, 255.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]] — Histogram of tracked color object
      • vmin [default: 10] — Min threshould of lightness.
      • vmax [default: 230] — Max threshould of lightness.
      • smin [default: 60] — Min value of saturation.
  • launch/contour_moments.launch
      • node_name [default: contour_moments]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 100] — Canny Edge low Threshold
  • launch/convex_hull.launch
      • node_name [default: convex_hull]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/corner_harris.launch
      • node_name [default: corner_harris]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 200] — Threshold value of a circle around corners's norm
  • launch/discrete_fourier_transform.launch
      • node_name [default: discrete_fourier_transform]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 1] — Specigy queue_size of input image subscribers
  • launch/edge_detection.launch
      • node_name [default: edge_detection]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • edge_type [default: 0] — Specify edge dtection methods. 0: Sobel Derivatives, 1: Lapalace Operator, 2, Canny Edge Detector.
      • canny_threshold1 [default: 100] — Specify second canny threashold value.
      • canny_threshold2 [default: 200] — Specity first canny threashold value.
      • apertureSize [default: 3] — Aperture size for the Sobel() operator.
      • apply_blur_pre [default: true] — Flag, applying Blur() to input image
      • postBlurSize [default: 13] — Aperture size for the Blur() to input image()
      • postBlurSigma [default: 3.2] — Sigma for the GaussianBlur() to input image.
      • apply_blur_post [default: false] — Flag, applying GaussinaBlur() to output(edge) image
      • L2gradient [default: false] — Flag, L2Gradient
  • launch/equalize_histogram.launch
      • node_name [default: equalize_histogram]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram_equalization_type [default: 0] — Specify histogram equaliztion methods. 0: Default, 1: Clahe
      • clahe_clip_limit [default: 255.0] — The maximum allowed field value Clip Limit
      • clahe_tile_size_x [default: 300] — The maximum allowed field value Threshold X Limit
      • clahe_tile_size_y [default: 300] — The maximum allowed field value Threshold Y Limit
      • use_opencl [default: true] — Enable or disable OpenCL
  • launch/face_detection.launch
      • node_name [default: face_detection]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: $(arg use_opencv3)]
      • use_opencv4 [default: false]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
  • launch/face_recognition.launch
      • launch_face_detection [default: true]
      • launch_trainer [default: true]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: false]
      • use_opencv4 [default: false]
      • debug_view [default: true]
      • queue_size [default: 100] — Specigy queue_size of input image subscribers
      • image [default: image]
      • data_dir [default: ~/.ros/opencv_apps/face_data]
  • launch/fback_flow.launch
      • node_name [default: fback_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/find_contours.launch
      • node_name [default: find_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 10] — Lower threshold for the internal Canny edge detector.
  • launch/general_contours.launch
      • node_name [default: general_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/goodfeature_track.launch
      • node_name [default: goodfeature_track]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • max_corners [default: 23] — Maximum number of corners to return. If there are more corners than are found, the strongest of them is returned.
  • launch/hls_color_filter.launch
      • node_name [default: hls_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • l_limit_max [default: 255] — The maximum allowed field value Luminance
      • l_limit_min [default: 50] — The minimum allowed field value Luminance
  • launch/hough_circles.launch
      • node_name [default: hough_circles]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_threshold [default: 200] — Upper threshold for the internal Canny edge detector.
      • accumulator_threshold [default: 50] — Threshold for center detection.
      • gaussian_blur_size [default: 9] — The size of gaussian blur (should be odd number)
      • gaussian_sigma_x [default: 2] — Sigma x of gaussian kernel
      • gaussian_sigma_y [default: 2] — Sigma y of gaussian kernel
      • dp [default: 2] — The inverse ratio of resolution.
      • min_circle_radius [default: 0] — The minimum size of the circle, If unknown, put zero as default
      • max_circle_radius [default: 0] — The maximum size of the circle, If unknown, put zero as default.
  • launch/hough_lines.launch
      • node_name [default: hough_lines]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hough_type [default: 0] — Apecify Hough transform type, 0 for Standard Hough Detection and 1 for Probabilistic Hough Detection
      • threshold [default: 150] — Threshould value for hough line detection
      • rho [default: 1.0] — The resolution of the parameter r in pixels.
      • theta [default: 1.0] — The resolution of the parameter theta in radians.
      • minLineLength [default: 30] — The minimum number of points that can form a line.
      • maxLineGrap [default: 10] — The maximum gap between two points to be considered in the same line.
  • launch/hsv_color_filter.launch
      • node_name [default: hsv_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • v_limit_max [default: 255] — The maximum allowed field value Value
      • v_limit_min [default: 50] — The minimum allowed field value Value
  • launch/lab_color_filter.launch
      • node_name [default: lab_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • l_limit_max [default: 255] — The maximum allowed field value L*
      • l_limit_min [default: 50] — The minimum allowed field value L*
      • a_limit_max [default: 250] — The maximum allowed field value a*
      • a_limit_min [default: 0] — The minimum allowed field value a*
      • b_limit_max [default: 255] — The maximum allowed field value b*
      • b_limit_min [default: 150] — The minimum allowed field value b*
  • launch/lk_flow.launch
      • node_name [default: lk_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • quality_level [default: 0.01] — Parameter characterizing the minimal acceptance quality of image corners.
      • min_distance [default: 10] — Minimum possible Euclidean distance between the returned corners.
      • block_size [default: 3] — Size of an average block for computing a derivative covariation matrix over each pixel neighborhood.
      • harris_k [default: 0.04] — Free parameter of the Harris detector
  • launch/morphology.launch
      • node_name [default: morphology]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • morph_operator [default: 0] — Morphology Operation Methods 0: Opening, 1: Closing, 2: Gradient, 3: Top Hat, 4: Black Hat
      • morph_element [default: 0] — Type of the kernel 0: Rect, 1: Cross, 2: Ellipse
      • morph_size [default: 0] — Size of the kernel
  • launch/people_detect.launch
      • node_name [default: people_detect]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hit_threshold [default: 0] — Threshold for the distance between features and SVM classifying plane
      • win_stride [default: 8] — Window stride. It must be a multiple of block stride.
      • padding [default: 32] — Mock parameter to keep the CPU interface compatibility. It must be (0,0).
      • scale0 [default: 1.05] — Coefficient of the detection window increase.
      • group_threshold [default: 2] — Coefficient to regulate the similarity threshold. When detected, some objects can be covered by many rectangles. 0 means not to perform grouping.
  • launch/phase_corr.launch
      • node_name [default: phase_corr]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/pyramids.launch
      • node_name [default: pyramids]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show pyramids image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • pyramids_type [default: 0] — Specify pyramids Up/Down. 0: Up size(zoom in), 1: Down size(zoom out).
      • num_of_pyramids [default: 0] — Number of Up/Down sampling.
  • launch/rgb_color_filter.launch
      • node_name [default: rgb_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • r_limit_max [default: 250] — The maximum allowed field value Red
      • r_limit_min [default: 50] — The minimum allowed field value Red
      • g_limit_max [default: 200] — The maximum allowed field value Green
      • g_limit_min [default: 100] — The minimum allowed field value Green
      • b_limit_max [default: 150] — The maximum allowed field value Blue
      • b_limit_min [default: 20] — The minimum allowed field value Blue
  • launch/segment_objects.launch
      • node_name [default: segment_objects]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/simple_flow.launch
      • node_name [default: simple_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • scale [default: 8] — Specify the scale factor to calculate optical flow.
  • launch/smoothing.launch
      • node_name [default: smoothing]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • filter_type [default: 0] — Smoothing Filter Methods. 0:Homogeneous blur, 1:Gaussian blur, 2:Median blur, 3:Bilateral Filter.
      • kernel_size [default: 7] — Size of the kernel (only one because we use a square window). Must be odd.
  • launch/threshold.launch
      • node_name [default: threshold]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • apply_otsu [default: false] — Decide applying Otsu's algotirhm threshold. If this value is true, threshold value will be ignored
      • threshold_type [default: 0] — Specify threshold types. 0: Binary threshold, 1: Binary inverted threshold, 2: Threshold truncated, 3: Threshold to zero, 4: Threshold to zero inverted
      • threshold [default: 150] — threshold value
      • max_binary [default: 255] — maximum value to use with the 0: Binary thresholding and 1: Binary inverted thresholding types.
  • launch/watershed_segmentation.launch
      • node_name [default: watershed_segmentation]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers

Plugins

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opencv_apps package from opencv_apps repo

opencv_apps

ROS Distro
lunar

Package Summary

Tags No category tags.
Version 2.0.3
License BSD
Build type CATKIN
Use RECOMMENDED

Repository Summary

Checkout URI https://github.com/ros-perception/opencv_apps.git
VCS Type git
VCS Version indigo
Last Updated 2025-05-22
Dev Status DEVELOPED
Released RELEASED
Tags No category tags.
Contributing Help Wanted (-)
Good First Issues (-)
Pull Requests to Review (-)

Package Description

Additional Links

No additional links.

Maintainers

  • Kei Okada

Authors

  • Kei Okada

opencv_apps

Travis CI Build Status

Indigo Trusty Build Status

Kinetic Xenial Build Status

Melodic Bionic Build Status

Documentation http://wiki.ros.org/opencv_apps

CHANGELOG

Changelog for package opencv_apps

2.0.3 (2025-05-22)

  • [lk_flow] Keep matching information for sparse optical flow (#149)
  • use bgr8 for output visualization (#145)
  • add ROS-O test (#147)
  • Suppress cmake warning (#146)
  • [TEST] Fix catkin_lint version 1.6.18 to avoid [cmake_minimum_required]{.title-ref} error (#143)
  • Add sync_.reset/async_.reset to destructor in face_recognition (#139)
  • fix github actions (#140)
  • fix missing .git directory (#136)
  • Add histogram equalization default and clahe (#126)
  • check all output of test/test-pyramids.test (#127)
  • tests: properly remap camera_info (#125)
  • add Morphology Transformations nodelet (#122)
  • add test to check when adding two images, whcih has different size. (#123)
  • contour_moments_nodelet: don't publish empty image (#124)
  • Add Lab color filter (#114)
  • add test to check on debain_unstable (#121)
  • Remove timestamp from face_data.tar.gz (#117)
  • use snapshot of rosdep list (#120)
  • fix travis, speed up GA tests (#116)
  • add .github/workflows (#115)
  • Contributors: Aoi Nakane, Jochen Sprickerhof, Kei Okada, Martin Günther, Naoto Tsukamoto, Shingo Kitagawa, Yuki Furuta, Iori Yanokura, Ivan Oliveira Tarifa

2.0.2 (2020-08-19)

  • .travis.yml: add noetic test (#108)
    • support oepncv4 for face detection launch/test files
    • convert img_gray every loop, this fixes [ERROR] [1597757072.115502734]: Image processing error: Matrix operand is an empty matrix. checkOperandsExist ../modules/core/src/matrix_expressions.cpp 23 errors
    • check CV_VERSION_VERSION > 4
    • add g++ static to package.xml
    • use python3 for noetic
    • .travis.yml : add CHECK_PYTHON3_COMPILE
    • .travis.yml: add noetic test
  • fix travis (#106)
    • add more package to CATKIN_DEPENDS
    • add image_view to run_depends
  • add hot fix for hydro test (#98)
    • add doublequote arount $TEST
    • add hot fix for hydro test
  • Improved variable names and comments (#95)
    • Improved variable names and comments: The comments and variable names were the opposite of what was functionally happening in the code. No functional change to this commit, just better readability and maintainability.
  • setup EoL repository (#96)
  • Contributors: Gus Crowards, Kei Okada

2.0.1 (2019-04-22)

  • support catkin_lint and clang-format tests in travis.yml (#93)
    • override is not supported gcc4.6 (12.04), remove this fix and add NOLINT
    • clang-tidy code need c++11
    • fix code by run-clang-tidy -fix
    • fix format by clang-format
    • fix CMakeLists.txt and package.xml for catkin_lint
    • support catkin_lint and clang-format tests
  • add queue_size parameter to all nodes, see #83 (#92)
    • add queue_size arg to launch files
    • sometimes simple_example_test fails with 'average rate (36.121Hz) exceeded maximum (35.000Hz)'

File truncated at 100 lines see the full file

Launch files

  • launch/adding_images.launch
      • node_name [default: adding_images]
      • image1 [default: image1] — The image topic. Should be remapped to the name of the real image topic.
      • image2 [default: image2] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • alpha [default: 0.5] — Weight of the first array elements
      • gamma [default: 0] — Scalar added to each sum
      • approximate_sync [default: false] — Flag of approximate_sync. If this value is false, image1 and image2 synchronize exact time.
  • launch/camshift.launch
      • node_name [default: camshift]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram [default: [0.0, 255.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]] — Histogram of tracked color object
      • vmin [default: 10] — Min threshould of lightness.
      • vmax [default: 230] — Max threshould of lightness.
      • smin [default: 60] — Min value of saturation.
  • launch/contour_moments.launch
      • node_name [default: contour_moments]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 100] — Canny Edge low Threshold
  • launch/convex_hull.launch
      • node_name [default: convex_hull]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/corner_harris.launch
      • node_name [default: corner_harris]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 200] — Threshold value of a circle around corners's norm
  • launch/discrete_fourier_transform.launch
      • node_name [default: discrete_fourier_transform]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 1] — Specigy queue_size of input image subscribers
  • launch/edge_detection.launch
      • node_name [default: edge_detection]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • edge_type [default: 0] — Specify edge dtection methods. 0: Sobel Derivatives, 1: Lapalace Operator, 2, Canny Edge Detector.
      • canny_threshold1 [default: 100] — Specify second canny threashold value.
      • canny_threshold2 [default: 200] — Specity first canny threashold value.
      • apertureSize [default: 3] — Aperture size for the Sobel() operator.
      • apply_blur_pre [default: true] — Flag, applying Blur() to input image
      • postBlurSize [default: 13] — Aperture size for the Blur() to input image()
      • postBlurSigma [default: 3.2] — Sigma for the GaussianBlur() to input image.
      • apply_blur_post [default: false] — Flag, applying GaussinaBlur() to output(edge) image
      • L2gradient [default: false] — Flag, L2Gradient
  • launch/equalize_histogram.launch
      • node_name [default: equalize_histogram]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram_equalization_type [default: 0] — Specify histogram equaliztion methods. 0: Default, 1: Clahe
      • clahe_clip_limit [default: 255.0] — The maximum allowed field value Clip Limit
      • clahe_tile_size_x [default: 300] — The maximum allowed field value Threshold X Limit
      • clahe_tile_size_y [default: 300] — The maximum allowed field value Threshold Y Limit
      • use_opencl [default: true] — Enable or disable OpenCL
  • launch/face_detection.launch
      • node_name [default: face_detection]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: $(arg use_opencv3)]
      • use_opencv4 [default: false]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
  • launch/face_recognition.launch
      • launch_face_detection [default: true]
      • launch_trainer [default: true]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: false]
      • use_opencv4 [default: false]
      • debug_view [default: true]
      • queue_size [default: 100] — Specigy queue_size of input image subscribers
      • image [default: image]
      • data_dir [default: ~/.ros/opencv_apps/face_data]
  • launch/fback_flow.launch
      • node_name [default: fback_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/find_contours.launch
      • node_name [default: find_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 10] — Lower threshold for the internal Canny edge detector.
  • launch/general_contours.launch
      • node_name [default: general_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/goodfeature_track.launch
      • node_name [default: goodfeature_track]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • max_corners [default: 23] — Maximum number of corners to return. If there are more corners than are found, the strongest of them is returned.
  • launch/hls_color_filter.launch
      • node_name [default: hls_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • l_limit_max [default: 255] — The maximum allowed field value Luminance
      • l_limit_min [default: 50] — The minimum allowed field value Luminance
  • launch/hough_circles.launch
      • node_name [default: hough_circles]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_threshold [default: 200] — Upper threshold for the internal Canny edge detector.
      • accumulator_threshold [default: 50] — Threshold for center detection.
      • gaussian_blur_size [default: 9] — The size of gaussian blur (should be odd number)
      • gaussian_sigma_x [default: 2] — Sigma x of gaussian kernel
      • gaussian_sigma_y [default: 2] — Sigma y of gaussian kernel
      • dp [default: 2] — The inverse ratio of resolution.
      • min_circle_radius [default: 0] — The minimum size of the circle, If unknown, put zero as default
      • max_circle_radius [default: 0] — The maximum size of the circle, If unknown, put zero as default.
  • launch/hough_lines.launch
      • node_name [default: hough_lines]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hough_type [default: 0] — Apecify Hough transform type, 0 for Standard Hough Detection and 1 for Probabilistic Hough Detection
      • threshold [default: 150] — Threshould value for hough line detection
      • rho [default: 1.0] — The resolution of the parameter r in pixels.
      • theta [default: 1.0] — The resolution of the parameter theta in radians.
      • minLineLength [default: 30] — The minimum number of points that can form a line.
      • maxLineGrap [default: 10] — The maximum gap between two points to be considered in the same line.
  • launch/hsv_color_filter.launch
      • node_name [default: hsv_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • v_limit_max [default: 255] — The maximum allowed field value Value
      • v_limit_min [default: 50] — The minimum allowed field value Value
  • launch/lab_color_filter.launch
      • node_name [default: lab_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • l_limit_max [default: 255] — The maximum allowed field value L*
      • l_limit_min [default: 50] — The minimum allowed field value L*
      • a_limit_max [default: 250] — The maximum allowed field value a*
      • a_limit_min [default: 0] — The minimum allowed field value a*
      • b_limit_max [default: 255] — The maximum allowed field value b*
      • b_limit_min [default: 150] — The minimum allowed field value b*
  • launch/lk_flow.launch
      • node_name [default: lk_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • quality_level [default: 0.01] — Parameter characterizing the minimal acceptance quality of image corners.
      • min_distance [default: 10] — Minimum possible Euclidean distance between the returned corners.
      • block_size [default: 3] — Size of an average block for computing a derivative covariation matrix over each pixel neighborhood.
      • harris_k [default: 0.04] — Free parameter of the Harris detector
  • launch/morphology.launch
      • node_name [default: morphology]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • morph_operator [default: 0] — Morphology Operation Methods 0: Opening, 1: Closing, 2: Gradient, 3: Top Hat, 4: Black Hat
      • morph_element [default: 0] — Type of the kernel 0: Rect, 1: Cross, 2: Ellipse
      • morph_size [default: 0] — Size of the kernel
  • launch/people_detect.launch
      • node_name [default: people_detect]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hit_threshold [default: 0] — Threshold for the distance between features and SVM classifying plane
      • win_stride [default: 8] — Window stride. It must be a multiple of block stride.
      • padding [default: 32] — Mock parameter to keep the CPU interface compatibility. It must be (0,0).
      • scale0 [default: 1.05] — Coefficient of the detection window increase.
      • group_threshold [default: 2] — Coefficient to regulate the similarity threshold. When detected, some objects can be covered by many rectangles. 0 means not to perform grouping.
  • launch/phase_corr.launch
      • node_name [default: phase_corr]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/pyramids.launch
      • node_name [default: pyramids]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show pyramids image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • pyramids_type [default: 0] — Specify pyramids Up/Down. 0: Up size(zoom in), 1: Down size(zoom out).
      • num_of_pyramids [default: 0] — Number of Up/Down sampling.
  • launch/rgb_color_filter.launch
      • node_name [default: rgb_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • r_limit_max [default: 250] — The maximum allowed field value Red
      • r_limit_min [default: 50] — The minimum allowed field value Red
      • g_limit_max [default: 200] — The maximum allowed field value Green
      • g_limit_min [default: 100] — The minimum allowed field value Green
      • b_limit_max [default: 150] — The maximum allowed field value Blue
      • b_limit_min [default: 20] — The minimum allowed field value Blue
  • launch/segment_objects.launch
      • node_name [default: segment_objects]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/simple_flow.launch
      • node_name [default: simple_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • scale [default: 8] — Specify the scale factor to calculate optical flow.
  • launch/smoothing.launch
      • node_name [default: smoothing]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • filter_type [default: 0] — Smoothing Filter Methods. 0:Homogeneous blur, 1:Gaussian blur, 2:Median blur, 3:Bilateral Filter.
      • kernel_size [default: 7] — Size of the kernel (only one because we use a square window). Must be odd.
  • launch/threshold.launch
      • node_name [default: threshold]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • apply_otsu [default: false] — Decide applying Otsu's algotirhm threshold. If this value is true, threshold value will be ignored
      • threshold_type [default: 0] — Specify threshold types. 0: Binary threshold, 1: Binary inverted threshold, 2: Threshold truncated, 3: Threshold to zero, 4: Threshold to zero inverted
      • threshold [default: 150] — threshold value
      • max_binary [default: 255] — maximum value to use with the 0: Binary thresholding and 1: Binary inverted thresholding types.
  • launch/watershed_segmentation.launch
      • node_name [default: watershed_segmentation]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers

Plugins

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opencv_apps package from opencv_apps repo

opencv_apps

ROS Distro
lunar

Package Summary

Tags No category tags.
Version 2.0.3
License BSD
Build type CATKIN
Use RECOMMENDED

Repository Summary

Checkout URI https://github.com/ros-perception/opencv_apps.git
VCS Type git
VCS Version indigo
Last Updated 2025-05-22
Dev Status DEVELOPED
Released RELEASED
Tags No category tags.
Contributing Help Wanted (-)
Good First Issues (-)
Pull Requests to Review (-)

Package Description

Additional Links

No additional links.

Maintainers

  • Kei Okada

Authors

  • Kei Okada

opencv_apps

Travis CI Build Status

Indigo Trusty Build Status

Kinetic Xenial Build Status

Melodic Bionic Build Status

Documentation http://wiki.ros.org/opencv_apps

CHANGELOG

Changelog for package opencv_apps

2.0.3 (2025-05-22)

  • [lk_flow] Keep matching information for sparse optical flow (#149)
  • use bgr8 for output visualization (#145)
  • add ROS-O test (#147)
  • Suppress cmake warning (#146)
  • [TEST] Fix catkin_lint version 1.6.18 to avoid [cmake_minimum_required]{.title-ref} error (#143)
  • Add sync_.reset/async_.reset to destructor in face_recognition (#139)
  • fix github actions (#140)
  • fix missing .git directory (#136)
  • Add histogram equalization default and clahe (#126)
  • check all output of test/test-pyramids.test (#127)
  • tests: properly remap camera_info (#125)
  • add Morphology Transformations nodelet (#122)
  • add test to check when adding two images, whcih has different size. (#123)
  • contour_moments_nodelet: don't publish empty image (#124)
  • Add Lab color filter (#114)
  • add test to check on debain_unstable (#121)
  • Remove timestamp from face_data.tar.gz (#117)
  • use snapshot of rosdep list (#120)
  • fix travis, speed up GA tests (#116)
  • add .github/workflows (#115)
  • Contributors: Aoi Nakane, Jochen Sprickerhof, Kei Okada, Martin Günther, Naoto Tsukamoto, Shingo Kitagawa, Yuki Furuta, Iori Yanokura, Ivan Oliveira Tarifa

2.0.2 (2020-08-19)

  • .travis.yml: add noetic test (#108)
    • support oepncv4 for face detection launch/test files
    • convert img_gray every loop, this fixes [ERROR] [1597757072.115502734]: Image processing error: Matrix operand is an empty matrix. checkOperandsExist ../modules/core/src/matrix_expressions.cpp 23 errors
    • check CV_VERSION_VERSION > 4
    • add g++ static to package.xml
    • use python3 for noetic
    • .travis.yml : add CHECK_PYTHON3_COMPILE
    • .travis.yml: add noetic test
  • fix travis (#106)
    • add more package to CATKIN_DEPENDS
    • add image_view to run_depends
  • add hot fix for hydro test (#98)
    • add doublequote arount $TEST
    • add hot fix for hydro test
  • Improved variable names and comments (#95)
    • Improved variable names and comments: The comments and variable names were the opposite of what was functionally happening in the code. No functional change to this commit, just better readability and maintainability.
  • setup EoL repository (#96)
  • Contributors: Gus Crowards, Kei Okada

2.0.1 (2019-04-22)

  • support catkin_lint and clang-format tests in travis.yml (#93)
    • override is not supported gcc4.6 (12.04), remove this fix and add NOLINT
    • clang-tidy code need c++11
    • fix code by run-clang-tidy -fix
    • fix format by clang-format
    • fix CMakeLists.txt and package.xml for catkin_lint
    • support catkin_lint and clang-format tests
  • add queue_size parameter to all nodes, see #83 (#92)
    • add queue_size arg to launch files
    • sometimes simple_example_test fails with 'average rate (36.121Hz) exceeded maximum (35.000Hz)'

File truncated at 100 lines see the full file

Launch files

  • launch/adding_images.launch
      • node_name [default: adding_images]
      • image1 [default: image1] — The image topic. Should be remapped to the name of the real image topic.
      • image2 [default: image2] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • alpha [default: 0.5] — Weight of the first array elements
      • gamma [default: 0] — Scalar added to each sum
      • approximate_sync [default: false] — Flag of approximate_sync. If this value is false, image1 and image2 synchronize exact time.
  • launch/camshift.launch
      • node_name [default: camshift]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram [default: [0.0, 255.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]] — Histogram of tracked color object
      • vmin [default: 10] — Min threshould of lightness.
      • vmax [default: 230] — Max threshould of lightness.
      • smin [default: 60] — Min value of saturation.
  • launch/contour_moments.launch
      • node_name [default: contour_moments]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 100] — Canny Edge low Threshold
  • launch/convex_hull.launch
      • node_name [default: convex_hull]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/corner_harris.launch
      • node_name [default: corner_harris]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 200] — Threshold value of a circle around corners's norm
  • launch/discrete_fourier_transform.launch
      • node_name [default: discrete_fourier_transform]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 1] — Specigy queue_size of input image subscribers
  • launch/edge_detection.launch
      • node_name [default: edge_detection]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • edge_type [default: 0] — Specify edge dtection methods. 0: Sobel Derivatives, 1: Lapalace Operator, 2, Canny Edge Detector.
      • canny_threshold1 [default: 100] — Specify second canny threashold value.
      • canny_threshold2 [default: 200] — Specity first canny threashold value.
      • apertureSize [default: 3] — Aperture size for the Sobel() operator.
      • apply_blur_pre [default: true] — Flag, applying Blur() to input image
      • postBlurSize [default: 13] — Aperture size for the Blur() to input image()
      • postBlurSigma [default: 3.2] — Sigma for the GaussianBlur() to input image.
      • apply_blur_post [default: false] — Flag, applying GaussinaBlur() to output(edge) image
      • L2gradient [default: false] — Flag, L2Gradient
  • launch/equalize_histogram.launch
      • node_name [default: equalize_histogram]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram_equalization_type [default: 0] — Specify histogram equaliztion methods. 0: Default, 1: Clahe
      • clahe_clip_limit [default: 255.0] — The maximum allowed field value Clip Limit
      • clahe_tile_size_x [default: 300] — The maximum allowed field value Threshold X Limit
      • clahe_tile_size_y [default: 300] — The maximum allowed field value Threshold Y Limit
      • use_opencl [default: true] — Enable or disable OpenCL
  • launch/face_detection.launch
      • node_name [default: face_detection]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: $(arg use_opencv3)]
      • use_opencv4 [default: false]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
  • launch/face_recognition.launch
      • launch_face_detection [default: true]
      • launch_trainer [default: true]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: false]
      • use_opencv4 [default: false]
      • debug_view [default: true]
      • queue_size [default: 100] — Specigy queue_size of input image subscribers
      • image [default: image]
      • data_dir [default: ~/.ros/opencv_apps/face_data]
  • launch/fback_flow.launch
      • node_name [default: fback_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/find_contours.launch
      • node_name [default: find_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 10] — Lower threshold for the internal Canny edge detector.
  • launch/general_contours.launch
      • node_name [default: general_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/goodfeature_track.launch
      • node_name [default: goodfeature_track]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • max_corners [default: 23] — Maximum number of corners to return. If there are more corners than are found, the strongest of them is returned.
  • launch/hls_color_filter.launch
      • node_name [default: hls_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • l_limit_max [default: 255] — The maximum allowed field value Luminance
      • l_limit_min [default: 50] — The minimum allowed field value Luminance
  • launch/hough_circles.launch
      • node_name [default: hough_circles]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_threshold [default: 200] — Upper threshold for the internal Canny edge detector.
      • accumulator_threshold [default: 50] — Threshold for center detection.
      • gaussian_blur_size [default: 9] — The size of gaussian blur (should be odd number)
      • gaussian_sigma_x [default: 2] — Sigma x of gaussian kernel
      • gaussian_sigma_y [default: 2] — Sigma y of gaussian kernel
      • dp [default: 2] — The inverse ratio of resolution.
      • min_circle_radius [default: 0] — The minimum size of the circle, If unknown, put zero as default
      • max_circle_radius [default: 0] — The maximum size of the circle, If unknown, put zero as default.
  • launch/hough_lines.launch
      • node_name [default: hough_lines]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hough_type [default: 0] — Apecify Hough transform type, 0 for Standard Hough Detection and 1 for Probabilistic Hough Detection
      • threshold [default: 150] — Threshould value for hough line detection
      • rho [default: 1.0] — The resolution of the parameter r in pixels.
      • theta [default: 1.0] — The resolution of the parameter theta in radians.
      • minLineLength [default: 30] — The minimum number of points that can form a line.
      • maxLineGrap [default: 10] — The maximum gap between two points to be considered in the same line.
  • launch/hsv_color_filter.launch
      • node_name [default: hsv_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • v_limit_max [default: 255] — The maximum allowed field value Value
      • v_limit_min [default: 50] — The minimum allowed field value Value
  • launch/lab_color_filter.launch
      • node_name [default: lab_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • l_limit_max [default: 255] — The maximum allowed field value L*
      • l_limit_min [default: 50] — The minimum allowed field value L*
      • a_limit_max [default: 250] — The maximum allowed field value a*
      • a_limit_min [default: 0] — The minimum allowed field value a*
      • b_limit_max [default: 255] — The maximum allowed field value b*
      • b_limit_min [default: 150] — The minimum allowed field value b*
  • launch/lk_flow.launch
      • node_name [default: lk_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • quality_level [default: 0.01] — Parameter characterizing the minimal acceptance quality of image corners.
      • min_distance [default: 10] — Minimum possible Euclidean distance between the returned corners.
      • block_size [default: 3] — Size of an average block for computing a derivative covariation matrix over each pixel neighborhood.
      • harris_k [default: 0.04] — Free parameter of the Harris detector
  • launch/morphology.launch
      • node_name [default: morphology]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • morph_operator [default: 0] — Morphology Operation Methods 0: Opening, 1: Closing, 2: Gradient, 3: Top Hat, 4: Black Hat
      • morph_element [default: 0] — Type of the kernel 0: Rect, 1: Cross, 2: Ellipse
      • morph_size [default: 0] — Size of the kernel
  • launch/people_detect.launch
      • node_name [default: people_detect]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hit_threshold [default: 0] — Threshold for the distance between features and SVM classifying plane
      • win_stride [default: 8] — Window stride. It must be a multiple of block stride.
      • padding [default: 32] — Mock parameter to keep the CPU interface compatibility. It must be (0,0).
      • scale0 [default: 1.05] — Coefficient of the detection window increase.
      • group_threshold [default: 2] — Coefficient to regulate the similarity threshold. When detected, some objects can be covered by many rectangles. 0 means not to perform grouping.
  • launch/phase_corr.launch
      • node_name [default: phase_corr]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/pyramids.launch
      • node_name [default: pyramids]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show pyramids image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • pyramids_type [default: 0] — Specify pyramids Up/Down. 0: Up size(zoom in), 1: Down size(zoom out).
      • num_of_pyramids [default: 0] — Number of Up/Down sampling.
  • launch/rgb_color_filter.launch
      • node_name [default: rgb_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • r_limit_max [default: 250] — The maximum allowed field value Red
      • r_limit_min [default: 50] — The minimum allowed field value Red
      • g_limit_max [default: 200] — The maximum allowed field value Green
      • g_limit_min [default: 100] — The minimum allowed field value Green
      • b_limit_max [default: 150] — The maximum allowed field value Blue
      • b_limit_min [default: 20] — The minimum allowed field value Blue
  • launch/segment_objects.launch
      • node_name [default: segment_objects]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/simple_flow.launch
      • node_name [default: simple_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • scale [default: 8] — Specify the scale factor to calculate optical flow.
  • launch/smoothing.launch
      • node_name [default: smoothing]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • filter_type [default: 0] — Smoothing Filter Methods. 0:Homogeneous blur, 1:Gaussian blur, 2:Median blur, 3:Bilateral Filter.
      • kernel_size [default: 7] — Size of the kernel (only one because we use a square window). Must be odd.
  • launch/threshold.launch
      • node_name [default: threshold]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • apply_otsu [default: false] — Decide applying Otsu's algotirhm threshold. If this value is true, threshold value will be ignored
      • threshold_type [default: 0] — Specify threshold types. 0: Binary threshold, 1: Binary inverted threshold, 2: Threshold truncated, 3: Threshold to zero, 4: Threshold to zero inverted
      • threshold [default: 150] — threshold value
      • max_binary [default: 255] — maximum value to use with the 0: Binary thresholding and 1: Binary inverted thresholding types.
  • launch/watershed_segmentation.launch
      • node_name [default: watershed_segmentation]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers

Plugins

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opencv_apps package from opencv_apps repo

opencv_apps

ROS Distro
lunar

Package Summary

Tags No category tags.
Version 2.0.3
License BSD
Build type CATKIN
Use RECOMMENDED

Repository Summary

Checkout URI https://github.com/ros-perception/opencv_apps.git
VCS Type git
VCS Version indigo
Last Updated 2025-05-22
Dev Status DEVELOPED
Released RELEASED
Tags No category tags.
Contributing Help Wanted (-)
Good First Issues (-)
Pull Requests to Review (-)

Package Description

Additional Links

No additional links.

Maintainers

  • Kei Okada

Authors

  • Kei Okada

opencv_apps

Travis CI Build Status

Indigo Trusty Build Status

Kinetic Xenial Build Status

Melodic Bionic Build Status

Documentation http://wiki.ros.org/opencv_apps

CHANGELOG

Changelog for package opencv_apps

2.0.3 (2025-05-22)

  • [lk_flow] Keep matching information for sparse optical flow (#149)
  • use bgr8 for output visualization (#145)
  • add ROS-O test (#147)
  • Suppress cmake warning (#146)
  • [TEST] Fix catkin_lint version 1.6.18 to avoid [cmake_minimum_required]{.title-ref} error (#143)
  • Add sync_.reset/async_.reset to destructor in face_recognition (#139)
  • fix github actions (#140)
  • fix missing .git directory (#136)
  • Add histogram equalization default and clahe (#126)
  • check all output of test/test-pyramids.test (#127)
  • tests: properly remap camera_info (#125)
  • add Morphology Transformations nodelet (#122)
  • add test to check when adding two images, whcih has different size. (#123)
  • contour_moments_nodelet: don't publish empty image (#124)
  • Add Lab color filter (#114)
  • add test to check on debain_unstable (#121)
  • Remove timestamp from face_data.tar.gz (#117)
  • use snapshot of rosdep list (#120)
  • fix travis, speed up GA tests (#116)
  • add .github/workflows (#115)
  • Contributors: Aoi Nakane, Jochen Sprickerhof, Kei Okada, Martin Günther, Naoto Tsukamoto, Shingo Kitagawa, Yuki Furuta, Iori Yanokura, Ivan Oliveira Tarifa

2.0.2 (2020-08-19)

  • .travis.yml: add noetic test (#108)
    • support oepncv4 for face detection launch/test files
    • convert img_gray every loop, this fixes [ERROR] [1597757072.115502734]: Image processing error: Matrix operand is an empty matrix. checkOperandsExist ../modules/core/src/matrix_expressions.cpp 23 errors
    • check CV_VERSION_VERSION > 4
    • add g++ static to package.xml
    • use python3 for noetic
    • .travis.yml : add CHECK_PYTHON3_COMPILE
    • .travis.yml: add noetic test
  • fix travis (#106)
    • add more package to CATKIN_DEPENDS
    • add image_view to run_depends
  • add hot fix for hydro test (#98)
    • add doublequote arount $TEST
    • add hot fix for hydro test
  • Improved variable names and comments (#95)
    • Improved variable names and comments: The comments and variable names were the opposite of what was functionally happening in the code. No functional change to this commit, just better readability and maintainability.
  • setup EoL repository (#96)
  • Contributors: Gus Crowards, Kei Okada

2.0.1 (2019-04-22)

  • support catkin_lint and clang-format tests in travis.yml (#93)
    • override is not supported gcc4.6 (12.04), remove this fix and add NOLINT
    • clang-tidy code need c++11
    • fix code by run-clang-tidy -fix
    • fix format by clang-format
    • fix CMakeLists.txt and package.xml for catkin_lint
    • support catkin_lint and clang-format tests
  • add queue_size parameter to all nodes, see #83 (#92)
    • add queue_size arg to launch files
    • sometimes simple_example_test fails with 'average rate (36.121Hz) exceeded maximum (35.000Hz)'

File truncated at 100 lines see the full file

Launch files

  • launch/adding_images.launch
      • node_name [default: adding_images]
      • image1 [default: image1] — The image topic. Should be remapped to the name of the real image topic.
      • image2 [default: image2] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • alpha [default: 0.5] — Weight of the first array elements
      • gamma [default: 0] — Scalar added to each sum
      • approximate_sync [default: false] — Flag of approximate_sync. If this value is false, image1 and image2 synchronize exact time.
  • launch/camshift.launch
      • node_name [default: camshift]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram [default: [0.0, 255.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]] — Histogram of tracked color object
      • vmin [default: 10] — Min threshould of lightness.
      • vmax [default: 230] — Max threshould of lightness.
      • smin [default: 60] — Min value of saturation.
  • launch/contour_moments.launch
      • node_name [default: contour_moments]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 100] — Canny Edge low Threshold
  • launch/convex_hull.launch
      • node_name [default: convex_hull]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/corner_harris.launch
      • node_name [default: corner_harris]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 200] — Threshold value of a circle around corners's norm
  • launch/discrete_fourier_transform.launch
      • node_name [default: discrete_fourier_transform]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 1] — Specigy queue_size of input image subscribers
  • launch/edge_detection.launch
      • node_name [default: edge_detection]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • edge_type [default: 0] — Specify edge dtection methods. 0: Sobel Derivatives, 1: Lapalace Operator, 2, Canny Edge Detector.
      • canny_threshold1 [default: 100] — Specify second canny threashold value.
      • canny_threshold2 [default: 200] — Specity first canny threashold value.
      • apertureSize [default: 3] — Aperture size for the Sobel() operator.
      • apply_blur_pre [default: true] — Flag, applying Blur() to input image
      • postBlurSize [default: 13] — Aperture size for the Blur() to input image()
      • postBlurSigma [default: 3.2] — Sigma for the GaussianBlur() to input image.
      • apply_blur_post [default: false] — Flag, applying GaussinaBlur() to output(edge) image
      • L2gradient [default: false] — Flag, L2Gradient
  • launch/equalize_histogram.launch
      • node_name [default: equalize_histogram]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram_equalization_type [default: 0] — Specify histogram equaliztion methods. 0: Default, 1: Clahe
      • clahe_clip_limit [default: 255.0] — The maximum allowed field value Clip Limit
      • clahe_tile_size_x [default: 300] — The maximum allowed field value Threshold X Limit
      • clahe_tile_size_y [default: 300] — The maximum allowed field value Threshold Y Limit
      • use_opencl [default: true] — Enable or disable OpenCL
  • launch/face_detection.launch
      • node_name [default: face_detection]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: $(arg use_opencv3)]
      • use_opencv4 [default: false]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
  • launch/face_recognition.launch
      • launch_face_detection [default: true]
      • launch_trainer [default: true]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: false]
      • use_opencv4 [default: false]
      • debug_view [default: true]
      • queue_size [default: 100] — Specigy queue_size of input image subscribers
      • image [default: image]
      • data_dir [default: ~/.ros/opencv_apps/face_data]
  • launch/fback_flow.launch
      • node_name [default: fback_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/find_contours.launch
      • node_name [default: find_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 10] — Lower threshold for the internal Canny edge detector.
  • launch/general_contours.launch
      • node_name [default: general_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/goodfeature_track.launch
      • node_name [default: goodfeature_track]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • max_corners [default: 23] — Maximum number of corners to return. If there are more corners than are found, the strongest of them is returned.
  • launch/hls_color_filter.launch
      • node_name [default: hls_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • l_limit_max [default: 255] — The maximum allowed field value Luminance
      • l_limit_min [default: 50] — The minimum allowed field value Luminance
  • launch/hough_circles.launch
      • node_name [default: hough_circles]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_threshold [default: 200] — Upper threshold for the internal Canny edge detector.
      • accumulator_threshold [default: 50] — Threshold for center detection.
      • gaussian_blur_size [default: 9] — The size of gaussian blur (should be odd number)
      • gaussian_sigma_x [default: 2] — Sigma x of gaussian kernel
      • gaussian_sigma_y [default: 2] — Sigma y of gaussian kernel
      • dp [default: 2] — The inverse ratio of resolution.
      • min_circle_radius [default: 0] — The minimum size of the circle, If unknown, put zero as default
      • max_circle_radius [default: 0] — The maximum size of the circle, If unknown, put zero as default.
  • launch/hough_lines.launch
      • node_name [default: hough_lines]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hough_type [default: 0] — Apecify Hough transform type, 0 for Standard Hough Detection and 1 for Probabilistic Hough Detection
      • threshold [default: 150] — Threshould value for hough line detection
      • rho [default: 1.0] — The resolution of the parameter r in pixels.
      • theta [default: 1.0] — The resolution of the parameter theta in radians.
      • minLineLength [default: 30] — The minimum number of points that can form a line.
      • maxLineGrap [default: 10] — The maximum gap between two points to be considered in the same line.
  • launch/hsv_color_filter.launch
      • node_name [default: hsv_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • v_limit_max [default: 255] — The maximum allowed field value Value
      • v_limit_min [default: 50] — The minimum allowed field value Value
  • launch/lab_color_filter.launch
      • node_name [default: lab_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • l_limit_max [default: 255] — The maximum allowed field value L*
      • l_limit_min [default: 50] — The minimum allowed field value L*
      • a_limit_max [default: 250] — The maximum allowed field value a*
      • a_limit_min [default: 0] — The minimum allowed field value a*
      • b_limit_max [default: 255] — The maximum allowed field value b*
      • b_limit_min [default: 150] — The minimum allowed field value b*
  • launch/lk_flow.launch
      • node_name [default: lk_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • quality_level [default: 0.01] — Parameter characterizing the minimal acceptance quality of image corners.
      • min_distance [default: 10] — Minimum possible Euclidean distance between the returned corners.
      • block_size [default: 3] — Size of an average block for computing a derivative covariation matrix over each pixel neighborhood.
      • harris_k [default: 0.04] — Free parameter of the Harris detector
  • launch/morphology.launch
      • node_name [default: morphology]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • morph_operator [default: 0] — Morphology Operation Methods 0: Opening, 1: Closing, 2: Gradient, 3: Top Hat, 4: Black Hat
      • morph_element [default: 0] — Type of the kernel 0: Rect, 1: Cross, 2: Ellipse
      • morph_size [default: 0] — Size of the kernel
  • launch/people_detect.launch
      • node_name [default: people_detect]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hit_threshold [default: 0] — Threshold for the distance between features and SVM classifying plane
      • win_stride [default: 8] — Window stride. It must be a multiple of block stride.
      • padding [default: 32] — Mock parameter to keep the CPU interface compatibility. It must be (0,0).
      • scale0 [default: 1.05] — Coefficient of the detection window increase.
      • group_threshold [default: 2] — Coefficient to regulate the similarity threshold. When detected, some objects can be covered by many rectangles. 0 means not to perform grouping.
  • launch/phase_corr.launch
      • node_name [default: phase_corr]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/pyramids.launch
      • node_name [default: pyramids]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show pyramids image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • pyramids_type [default: 0] — Specify pyramids Up/Down. 0: Up size(zoom in), 1: Down size(zoom out).
      • num_of_pyramids [default: 0] — Number of Up/Down sampling.
  • launch/rgb_color_filter.launch
      • node_name [default: rgb_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • r_limit_max [default: 250] — The maximum allowed field value Red
      • r_limit_min [default: 50] — The minimum allowed field value Red
      • g_limit_max [default: 200] — The maximum allowed field value Green
      • g_limit_min [default: 100] — The minimum allowed field value Green
      • b_limit_max [default: 150] — The maximum allowed field value Blue
      • b_limit_min [default: 20] — The minimum allowed field value Blue
  • launch/segment_objects.launch
      • node_name [default: segment_objects]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/simple_flow.launch
      • node_name [default: simple_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • scale [default: 8] — Specify the scale factor to calculate optical flow.
  • launch/smoothing.launch
      • node_name [default: smoothing]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • filter_type [default: 0] — Smoothing Filter Methods. 0:Homogeneous blur, 1:Gaussian blur, 2:Median blur, 3:Bilateral Filter.
      • kernel_size [default: 7] — Size of the kernel (only one because we use a square window). Must be odd.
  • launch/threshold.launch
      • node_name [default: threshold]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • apply_otsu [default: false] — Decide applying Otsu's algotirhm threshold. If this value is true, threshold value will be ignored
      • threshold_type [default: 0] — Specify threshold types. 0: Binary threshold, 1: Binary inverted threshold, 2: Threshold truncated, 3: Threshold to zero, 4: Threshold to zero inverted
      • threshold [default: 150] — threshold value
      • max_binary [default: 255] — maximum value to use with the 0: Binary thresholding and 1: Binary inverted thresholding types.
  • launch/watershed_segmentation.launch
      • node_name [default: watershed_segmentation]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers

Plugins

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opencv_apps package from opencv_apps repo

opencv_apps

ROS Distro
lunar

Package Summary

Tags No category tags.
Version 2.0.3
License BSD
Build type CATKIN
Use RECOMMENDED

Repository Summary

Checkout URI https://github.com/ros-perception/opencv_apps.git
VCS Type git
VCS Version indigo
Last Updated 2025-05-22
Dev Status DEVELOPED
Released RELEASED
Tags No category tags.
Contributing Help Wanted (-)
Good First Issues (-)
Pull Requests to Review (-)

Package Description

Additional Links

No additional links.

Maintainers

  • Kei Okada

Authors

  • Kei Okada

opencv_apps

Travis CI Build Status

Indigo Trusty Build Status

Kinetic Xenial Build Status

Melodic Bionic Build Status

Documentation http://wiki.ros.org/opencv_apps

CHANGELOG

Changelog for package opencv_apps

2.0.3 (2025-05-22)

  • [lk_flow] Keep matching information for sparse optical flow (#149)
  • use bgr8 for output visualization (#145)
  • add ROS-O test (#147)
  • Suppress cmake warning (#146)
  • [TEST] Fix catkin_lint version 1.6.18 to avoid [cmake_minimum_required]{.title-ref} error (#143)
  • Add sync_.reset/async_.reset to destructor in face_recognition (#139)
  • fix github actions (#140)
  • fix missing .git directory (#136)
  • Add histogram equalization default and clahe (#126)
  • check all output of test/test-pyramids.test (#127)
  • tests: properly remap camera_info (#125)
  • add Morphology Transformations nodelet (#122)
  • add test to check when adding two images, whcih has different size. (#123)
  • contour_moments_nodelet: don't publish empty image (#124)
  • Add Lab color filter (#114)
  • add test to check on debain_unstable (#121)
  • Remove timestamp from face_data.tar.gz (#117)
  • use snapshot of rosdep list (#120)
  • fix travis, speed up GA tests (#116)
  • add .github/workflows (#115)
  • Contributors: Aoi Nakane, Jochen Sprickerhof, Kei Okada, Martin Günther, Naoto Tsukamoto, Shingo Kitagawa, Yuki Furuta, Iori Yanokura, Ivan Oliveira Tarifa

2.0.2 (2020-08-19)

  • .travis.yml: add noetic test (#108)
    • support oepncv4 for face detection launch/test files
    • convert img_gray every loop, this fixes [ERROR] [1597757072.115502734]: Image processing error: Matrix operand is an empty matrix. checkOperandsExist ../modules/core/src/matrix_expressions.cpp 23 errors
    • check CV_VERSION_VERSION > 4
    • add g++ static to package.xml
    • use python3 for noetic
    • .travis.yml : add CHECK_PYTHON3_COMPILE
    • .travis.yml: add noetic test
  • fix travis (#106)
    • add more package to CATKIN_DEPENDS
    • add image_view to run_depends
  • add hot fix for hydro test (#98)
    • add doublequote arount $TEST
    • add hot fix for hydro test
  • Improved variable names and comments (#95)
    • Improved variable names and comments: The comments and variable names were the opposite of what was functionally happening in the code. No functional change to this commit, just better readability and maintainability.
  • setup EoL repository (#96)
  • Contributors: Gus Crowards, Kei Okada

2.0.1 (2019-04-22)

  • support catkin_lint and clang-format tests in travis.yml (#93)
    • override is not supported gcc4.6 (12.04), remove this fix and add NOLINT
    • clang-tidy code need c++11
    • fix code by run-clang-tidy -fix
    • fix format by clang-format
    • fix CMakeLists.txt and package.xml for catkin_lint
    • support catkin_lint and clang-format tests
  • add queue_size parameter to all nodes, see #83 (#92)
    • add queue_size arg to launch files
    • sometimes simple_example_test fails with 'average rate (36.121Hz) exceeded maximum (35.000Hz)'

File truncated at 100 lines see the full file

Launch files

  • launch/adding_images.launch
      • node_name [default: adding_images]
      • image1 [default: image1] — The image topic. Should be remapped to the name of the real image topic.
      • image2 [default: image2] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • alpha [default: 0.5] — Weight of the first array elements
      • gamma [default: 0] — Scalar added to each sum
      • approximate_sync [default: false] — Flag of approximate_sync. If this value is false, image1 and image2 synchronize exact time.
  • launch/camshift.launch
      • node_name [default: camshift]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram [default: [0.0, 255.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]] — Histogram of tracked color object
      • vmin [default: 10] — Min threshould of lightness.
      • vmax [default: 230] — Max threshould of lightness.
      • smin [default: 60] — Min value of saturation.
  • launch/contour_moments.launch
      • node_name [default: contour_moments]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 100] — Canny Edge low Threshold
  • launch/convex_hull.launch
      • node_name [default: convex_hull]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/corner_harris.launch
      • node_name [default: corner_harris]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 200] — Threshold value of a circle around corners's norm
  • launch/discrete_fourier_transform.launch
      • node_name [default: discrete_fourier_transform]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 1] — Specigy queue_size of input image subscribers
  • launch/edge_detection.launch
      • node_name [default: edge_detection]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • edge_type [default: 0] — Specify edge dtection methods. 0: Sobel Derivatives, 1: Lapalace Operator, 2, Canny Edge Detector.
      • canny_threshold1 [default: 100] — Specify second canny threashold value.
      • canny_threshold2 [default: 200] — Specity first canny threashold value.
      • apertureSize [default: 3] — Aperture size for the Sobel() operator.
      • apply_blur_pre [default: true] — Flag, applying Blur() to input image
      • postBlurSize [default: 13] — Aperture size for the Blur() to input image()
      • postBlurSigma [default: 3.2] — Sigma for the GaussianBlur() to input image.
      • apply_blur_post [default: false] — Flag, applying GaussinaBlur() to output(edge) image
      • L2gradient [default: false] — Flag, L2Gradient
  • launch/equalize_histogram.launch
      • node_name [default: equalize_histogram]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram_equalization_type [default: 0] — Specify histogram equaliztion methods. 0: Default, 1: Clahe
      • clahe_clip_limit [default: 255.0] — The maximum allowed field value Clip Limit
      • clahe_tile_size_x [default: 300] — The maximum allowed field value Threshold X Limit
      • clahe_tile_size_y [default: 300] — The maximum allowed field value Threshold Y Limit
      • use_opencl [default: true] — Enable or disable OpenCL
  • launch/face_detection.launch
      • node_name [default: face_detection]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: $(arg use_opencv3)]
      • use_opencv4 [default: false]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
  • launch/face_recognition.launch
      • launch_face_detection [default: true]
      • launch_trainer [default: true]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: false]
      • use_opencv4 [default: false]
      • debug_view [default: true]
      • queue_size [default: 100] — Specigy queue_size of input image subscribers
      • image [default: image]
      • data_dir [default: ~/.ros/opencv_apps/face_data]
  • launch/fback_flow.launch
      • node_name [default: fback_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/find_contours.launch
      • node_name [default: find_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 10] — Lower threshold for the internal Canny edge detector.
  • launch/general_contours.launch
      • node_name [default: general_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/goodfeature_track.launch
      • node_name [default: goodfeature_track]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • max_corners [default: 23] — Maximum number of corners to return. If there are more corners than are found, the strongest of them is returned.
  • launch/hls_color_filter.launch
      • node_name [default: hls_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • l_limit_max [default: 255] — The maximum allowed field value Luminance
      • l_limit_min [default: 50] — The minimum allowed field value Luminance
  • launch/hough_circles.launch
      • node_name [default: hough_circles]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_threshold [default: 200] — Upper threshold for the internal Canny edge detector.
      • accumulator_threshold [default: 50] — Threshold for center detection.
      • gaussian_blur_size [default: 9] — The size of gaussian blur (should be odd number)
      • gaussian_sigma_x [default: 2] — Sigma x of gaussian kernel
      • gaussian_sigma_y [default: 2] — Sigma y of gaussian kernel
      • dp [default: 2] — The inverse ratio of resolution.
      • min_circle_radius [default: 0] — The minimum size of the circle, If unknown, put zero as default
      • max_circle_radius [default: 0] — The maximum size of the circle, If unknown, put zero as default.
  • launch/hough_lines.launch
      • node_name [default: hough_lines]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hough_type [default: 0] — Apecify Hough transform type, 0 for Standard Hough Detection and 1 for Probabilistic Hough Detection
      • threshold [default: 150] — Threshould value for hough line detection
      • rho [default: 1.0] — The resolution of the parameter r in pixels.
      • theta [default: 1.0] — The resolution of the parameter theta in radians.
      • minLineLength [default: 30] — The minimum number of points that can form a line.
      • maxLineGrap [default: 10] — The maximum gap between two points to be considered in the same line.
  • launch/hsv_color_filter.launch
      • node_name [default: hsv_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • v_limit_max [default: 255] — The maximum allowed field value Value
      • v_limit_min [default: 50] — The minimum allowed field value Value
  • launch/lab_color_filter.launch
      • node_name [default: lab_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • l_limit_max [default: 255] — The maximum allowed field value L*
      • l_limit_min [default: 50] — The minimum allowed field value L*
      • a_limit_max [default: 250] — The maximum allowed field value a*
      • a_limit_min [default: 0] — The minimum allowed field value a*
      • b_limit_max [default: 255] — The maximum allowed field value b*
      • b_limit_min [default: 150] — The minimum allowed field value b*
  • launch/lk_flow.launch
      • node_name [default: lk_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • quality_level [default: 0.01] — Parameter characterizing the minimal acceptance quality of image corners.
      • min_distance [default: 10] — Minimum possible Euclidean distance between the returned corners.
      • block_size [default: 3] — Size of an average block for computing a derivative covariation matrix over each pixel neighborhood.
      • harris_k [default: 0.04] — Free parameter of the Harris detector
  • launch/morphology.launch
      • node_name [default: morphology]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • morph_operator [default: 0] — Morphology Operation Methods 0: Opening, 1: Closing, 2: Gradient, 3: Top Hat, 4: Black Hat
      • morph_element [default: 0] — Type of the kernel 0: Rect, 1: Cross, 2: Ellipse
      • morph_size [default: 0] — Size of the kernel
  • launch/people_detect.launch
      • node_name [default: people_detect]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hit_threshold [default: 0] — Threshold for the distance between features and SVM classifying plane
      • win_stride [default: 8] — Window stride. It must be a multiple of block stride.
      • padding [default: 32] — Mock parameter to keep the CPU interface compatibility. It must be (0,0).
      • scale0 [default: 1.05] — Coefficient of the detection window increase.
      • group_threshold [default: 2] — Coefficient to regulate the similarity threshold. When detected, some objects can be covered by many rectangles. 0 means not to perform grouping.
  • launch/phase_corr.launch
      • node_name [default: phase_corr]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/pyramids.launch
      • node_name [default: pyramids]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show pyramids image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • pyramids_type [default: 0] — Specify pyramids Up/Down. 0: Up size(zoom in), 1: Down size(zoom out).
      • num_of_pyramids [default: 0] — Number of Up/Down sampling.
  • launch/rgb_color_filter.launch
      • node_name [default: rgb_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • r_limit_max [default: 250] — The maximum allowed field value Red
      • r_limit_min [default: 50] — The minimum allowed field value Red
      • g_limit_max [default: 200] — The maximum allowed field value Green
      • g_limit_min [default: 100] — The minimum allowed field value Green
      • b_limit_max [default: 150] — The maximum allowed field value Blue
      • b_limit_min [default: 20] — The minimum allowed field value Blue
  • launch/segment_objects.launch
      • node_name [default: segment_objects]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/simple_flow.launch
      • node_name [default: simple_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • scale [default: 8] — Specify the scale factor to calculate optical flow.
  • launch/smoothing.launch
      • node_name [default: smoothing]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • filter_type [default: 0] — Smoothing Filter Methods. 0:Homogeneous blur, 1:Gaussian blur, 2:Median blur, 3:Bilateral Filter.
      • kernel_size [default: 7] — Size of the kernel (only one because we use a square window). Must be odd.
  • launch/threshold.launch
      • node_name [default: threshold]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • apply_otsu [default: false] — Decide applying Otsu's algotirhm threshold. If this value is true, threshold value will be ignored
      • threshold_type [default: 0] — Specify threshold types. 0: Binary threshold, 1: Binary inverted threshold, 2: Threshold truncated, 3: Threshold to zero, 4: Threshold to zero inverted
      • threshold [default: 150] — threshold value
      • max_binary [default: 255] — maximum value to use with the 0: Binary thresholding and 1: Binary inverted thresholding types.
  • launch/watershed_segmentation.launch
      • node_name [default: watershed_segmentation]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers

Plugins

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opencv_apps package from opencv_apps repo

opencv_apps

ROS Distro
lunar

Package Summary

Tags No category tags.
Version 2.0.3
License BSD
Build type CATKIN
Use RECOMMENDED

Repository Summary

Checkout URI https://github.com/ros-perception/opencv_apps.git
VCS Type git
VCS Version indigo
Last Updated 2025-05-22
Dev Status DEVELOPED
Released RELEASED
Tags No category tags.
Contributing Help Wanted (-)
Good First Issues (-)
Pull Requests to Review (-)

Package Description

Additional Links

No additional links.

Maintainers

  • Kei Okada

Authors

  • Kei Okada

opencv_apps

Travis CI Build Status

Indigo Trusty Build Status

Kinetic Xenial Build Status

Melodic Bionic Build Status

Documentation http://wiki.ros.org/opencv_apps

CHANGELOG

Changelog for package opencv_apps

2.0.3 (2025-05-22)

  • [lk_flow] Keep matching information for sparse optical flow (#149)
  • use bgr8 for output visualization (#145)
  • add ROS-O test (#147)
  • Suppress cmake warning (#146)
  • [TEST] Fix catkin_lint version 1.6.18 to avoid [cmake_minimum_required]{.title-ref} error (#143)
  • Add sync_.reset/async_.reset to destructor in face_recognition (#139)
  • fix github actions (#140)
  • fix missing .git directory (#136)
  • Add histogram equalization default and clahe (#126)
  • check all output of test/test-pyramids.test (#127)
  • tests: properly remap camera_info (#125)
  • add Morphology Transformations nodelet (#122)
  • add test to check when adding two images, whcih has different size. (#123)
  • contour_moments_nodelet: don't publish empty image (#124)
  • Add Lab color filter (#114)
  • add test to check on debain_unstable (#121)
  • Remove timestamp from face_data.tar.gz (#117)
  • use snapshot of rosdep list (#120)
  • fix travis, speed up GA tests (#116)
  • add .github/workflows (#115)
  • Contributors: Aoi Nakane, Jochen Sprickerhof, Kei Okada, Martin Günther, Naoto Tsukamoto, Shingo Kitagawa, Yuki Furuta, Iori Yanokura, Ivan Oliveira Tarifa

2.0.2 (2020-08-19)

  • .travis.yml: add noetic test (#108)
    • support oepncv4 for face detection launch/test files
    • convert img_gray every loop, this fixes [ERROR] [1597757072.115502734]: Image processing error: Matrix operand is an empty matrix. checkOperandsExist ../modules/core/src/matrix_expressions.cpp 23 errors
    • check CV_VERSION_VERSION > 4
    • add g++ static to package.xml
    • use python3 for noetic
    • .travis.yml : add CHECK_PYTHON3_COMPILE
    • .travis.yml: add noetic test
  • fix travis (#106)
    • add more package to CATKIN_DEPENDS
    • add image_view to run_depends
  • add hot fix for hydro test (#98)
    • add doublequote arount $TEST
    • add hot fix for hydro test
  • Improved variable names and comments (#95)
    • Improved variable names and comments: The comments and variable names were the opposite of what was functionally happening in the code. No functional change to this commit, just better readability and maintainability.
  • setup EoL repository (#96)
  • Contributors: Gus Crowards, Kei Okada

2.0.1 (2019-04-22)

  • support catkin_lint and clang-format tests in travis.yml (#93)
    • override is not supported gcc4.6 (12.04), remove this fix and add NOLINT
    • clang-tidy code need c++11
    • fix code by run-clang-tidy -fix
    • fix format by clang-format
    • fix CMakeLists.txt and package.xml for catkin_lint
    • support catkin_lint and clang-format tests
  • add queue_size parameter to all nodes, see #83 (#92)
    • add queue_size arg to launch files
    • sometimes simple_example_test fails with 'average rate (36.121Hz) exceeded maximum (35.000Hz)'

File truncated at 100 lines see the full file

Launch files

  • launch/adding_images.launch
      • node_name [default: adding_images]
      • image1 [default: image1] — The image topic. Should be remapped to the name of the real image topic.
      • image2 [default: image2] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • alpha [default: 0.5] — Weight of the first array elements
      • gamma [default: 0] — Scalar added to each sum
      • approximate_sync [default: false] — Flag of approximate_sync. If this value is false, image1 and image2 synchronize exact time.
  • launch/camshift.launch
      • node_name [default: camshift]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram [default: [0.0, 255.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]] — Histogram of tracked color object
      • vmin [default: 10] — Min threshould of lightness.
      • vmax [default: 230] — Max threshould of lightness.
      • smin [default: 60] — Min value of saturation.
  • launch/contour_moments.launch
      • node_name [default: contour_moments]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 100] — Canny Edge low Threshold
  • launch/convex_hull.launch
      • node_name [default: convex_hull]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/corner_harris.launch
      • node_name [default: corner_harris]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 200] — Threshold value of a circle around corners's norm
  • launch/discrete_fourier_transform.launch
      • node_name [default: discrete_fourier_transform]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 1] — Specigy queue_size of input image subscribers
  • launch/edge_detection.launch
      • node_name [default: edge_detection]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • edge_type [default: 0] — Specify edge dtection methods. 0: Sobel Derivatives, 1: Lapalace Operator, 2, Canny Edge Detector.
      • canny_threshold1 [default: 100] — Specify second canny threashold value.
      • canny_threshold2 [default: 200] — Specity first canny threashold value.
      • apertureSize [default: 3] — Aperture size for the Sobel() operator.
      • apply_blur_pre [default: true] — Flag, applying Blur() to input image
      • postBlurSize [default: 13] — Aperture size for the Blur() to input image()
      • postBlurSigma [default: 3.2] — Sigma for the GaussianBlur() to input image.
      • apply_blur_post [default: false] — Flag, applying GaussinaBlur() to output(edge) image
      • L2gradient [default: false] — Flag, L2Gradient
  • launch/equalize_histogram.launch
      • node_name [default: equalize_histogram]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram_equalization_type [default: 0] — Specify histogram equaliztion methods. 0: Default, 1: Clahe
      • clahe_clip_limit [default: 255.0] — The maximum allowed field value Clip Limit
      • clahe_tile_size_x [default: 300] — The maximum allowed field value Threshold X Limit
      • clahe_tile_size_y [default: 300] — The maximum allowed field value Threshold Y Limit
      • use_opencl [default: true] — Enable or disable OpenCL
  • launch/face_detection.launch
      • node_name [default: face_detection]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: $(arg use_opencv3)]
      • use_opencv4 [default: false]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
  • launch/face_recognition.launch
      • launch_face_detection [default: true]
      • launch_trainer [default: true]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: false]
      • use_opencv4 [default: false]
      • debug_view [default: true]
      • queue_size [default: 100] — Specigy queue_size of input image subscribers
      • image [default: image]
      • data_dir [default: ~/.ros/opencv_apps/face_data]
  • launch/fback_flow.launch
      • node_name [default: fback_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/find_contours.launch
      • node_name [default: find_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 10] — Lower threshold for the internal Canny edge detector.
  • launch/general_contours.launch
      • node_name [default: general_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/goodfeature_track.launch
      • node_name [default: goodfeature_track]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • max_corners [default: 23] — Maximum number of corners to return. If there are more corners than are found, the strongest of them is returned.
  • launch/hls_color_filter.launch
      • node_name [default: hls_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • l_limit_max [default: 255] — The maximum allowed field value Luminance
      • l_limit_min [default: 50] — The minimum allowed field value Luminance
  • launch/hough_circles.launch
      • node_name [default: hough_circles]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_threshold [default: 200] — Upper threshold for the internal Canny edge detector.
      • accumulator_threshold [default: 50] — Threshold for center detection.
      • gaussian_blur_size [default: 9] — The size of gaussian blur (should be odd number)
      • gaussian_sigma_x [default: 2] — Sigma x of gaussian kernel
      • gaussian_sigma_y [default: 2] — Sigma y of gaussian kernel
      • dp [default: 2] — The inverse ratio of resolution.
      • min_circle_radius [default: 0] — The minimum size of the circle, If unknown, put zero as default
      • max_circle_radius [default: 0] — The maximum size of the circle, If unknown, put zero as default.
  • launch/hough_lines.launch
      • node_name [default: hough_lines]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hough_type [default: 0] — Apecify Hough transform type, 0 for Standard Hough Detection and 1 for Probabilistic Hough Detection
      • threshold [default: 150] — Threshould value for hough line detection
      • rho [default: 1.0] — The resolution of the parameter r in pixels.
      • theta [default: 1.0] — The resolution of the parameter theta in radians.
      • minLineLength [default: 30] — The minimum number of points that can form a line.
      • maxLineGrap [default: 10] — The maximum gap between two points to be considered in the same line.
  • launch/hsv_color_filter.launch
      • node_name [default: hsv_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • v_limit_max [default: 255] — The maximum allowed field value Value
      • v_limit_min [default: 50] — The minimum allowed field value Value
  • launch/lab_color_filter.launch
      • node_name [default: lab_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • l_limit_max [default: 255] — The maximum allowed field value L*
      • l_limit_min [default: 50] — The minimum allowed field value L*
      • a_limit_max [default: 250] — The maximum allowed field value a*
      • a_limit_min [default: 0] — The minimum allowed field value a*
      • b_limit_max [default: 255] — The maximum allowed field value b*
      • b_limit_min [default: 150] — The minimum allowed field value b*
  • launch/lk_flow.launch
      • node_name [default: lk_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • quality_level [default: 0.01] — Parameter characterizing the minimal acceptance quality of image corners.
      • min_distance [default: 10] — Minimum possible Euclidean distance between the returned corners.
      • block_size [default: 3] — Size of an average block for computing a derivative covariation matrix over each pixel neighborhood.
      • harris_k [default: 0.04] — Free parameter of the Harris detector
  • launch/morphology.launch
      • node_name [default: morphology]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • morph_operator [default: 0] — Morphology Operation Methods 0: Opening, 1: Closing, 2: Gradient, 3: Top Hat, 4: Black Hat
      • morph_element [default: 0] — Type of the kernel 0: Rect, 1: Cross, 2: Ellipse
      • morph_size [default: 0] — Size of the kernel
  • launch/people_detect.launch
      • node_name [default: people_detect]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hit_threshold [default: 0] — Threshold for the distance between features and SVM classifying plane
      • win_stride [default: 8] — Window stride. It must be a multiple of block stride.
      • padding [default: 32] — Mock parameter to keep the CPU interface compatibility. It must be (0,0).
      • scale0 [default: 1.05] — Coefficient of the detection window increase.
      • group_threshold [default: 2] — Coefficient to regulate the similarity threshold. When detected, some objects can be covered by many rectangles. 0 means not to perform grouping.
  • launch/phase_corr.launch
      • node_name [default: phase_corr]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/pyramids.launch
      • node_name [default: pyramids]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show pyramids image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • pyramids_type [default: 0] — Specify pyramids Up/Down. 0: Up size(zoom in), 1: Down size(zoom out).
      • num_of_pyramids [default: 0] — Number of Up/Down sampling.
  • launch/rgb_color_filter.launch
      • node_name [default: rgb_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • r_limit_max [default: 250] — The maximum allowed field value Red
      • r_limit_min [default: 50] — The minimum allowed field value Red
      • g_limit_max [default: 200] — The maximum allowed field value Green
      • g_limit_min [default: 100] — The minimum allowed field value Green
      • b_limit_max [default: 150] — The maximum allowed field value Blue
      • b_limit_min [default: 20] — The minimum allowed field value Blue
  • launch/segment_objects.launch
      • node_name [default: segment_objects]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/simple_flow.launch
      • node_name [default: simple_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • scale [default: 8] — Specify the scale factor to calculate optical flow.
  • launch/smoothing.launch
      • node_name [default: smoothing]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • filter_type [default: 0] — Smoothing Filter Methods. 0:Homogeneous blur, 1:Gaussian blur, 2:Median blur, 3:Bilateral Filter.
      • kernel_size [default: 7] — Size of the kernel (only one because we use a square window). Must be odd.
  • launch/threshold.launch
      • node_name [default: threshold]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • apply_otsu [default: false] — Decide applying Otsu's algotirhm threshold. If this value is true, threshold value will be ignored
      • threshold_type [default: 0] — Specify threshold types. 0: Binary threshold, 1: Binary inverted threshold, 2: Threshold truncated, 3: Threshold to zero, 4: Threshold to zero inverted
      • threshold [default: 150] — threshold value
      • max_binary [default: 255] — maximum value to use with the 0: Binary thresholding and 1: Binary inverted thresholding types.
  • launch/watershed_segmentation.launch
      • node_name [default: watershed_segmentation]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers

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opencv_apps package from opencv_apps repo

opencv_apps

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Package Summary

Tags No category tags.
Version 2.0.3
License BSD
Build type CATKIN
Use RECOMMENDED

Repository Summary

Checkout URI https://github.com/ros-perception/opencv_apps.git
VCS Type git
VCS Version indigo
Last Updated 2025-05-22
Dev Status DEVELOPED
Released RELEASED
Tags No category tags.
Contributing Help Wanted (-)
Good First Issues (-)
Pull Requests to Review (-)

Package Description

Additional Links

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Maintainers

  • Kei Okada

Authors

  • Kei Okada

opencv_apps

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Kinetic Xenial Build Status

Melodic Bionic Build Status

Documentation http://wiki.ros.org/opencv_apps

CHANGELOG

Changelog for package opencv_apps

2.0.3 (2025-05-22)

  • [lk_flow] Keep matching information for sparse optical flow (#149)
  • use bgr8 for output visualization (#145)
  • add ROS-O test (#147)
  • Suppress cmake warning (#146)
  • [TEST] Fix catkin_lint version 1.6.18 to avoid [cmake_minimum_required]{.title-ref} error (#143)
  • Add sync_.reset/async_.reset to destructor in face_recognition (#139)
  • fix github actions (#140)
  • fix missing .git directory (#136)
  • Add histogram equalization default and clahe (#126)
  • check all output of test/test-pyramids.test (#127)
  • tests: properly remap camera_info (#125)
  • add Morphology Transformations nodelet (#122)
  • add test to check when adding two images, whcih has different size. (#123)
  • contour_moments_nodelet: don't publish empty image (#124)
  • Add Lab color filter (#114)
  • add test to check on debain_unstable (#121)
  • Remove timestamp from face_data.tar.gz (#117)
  • use snapshot of rosdep list (#120)
  • fix travis, speed up GA tests (#116)
  • add .github/workflows (#115)
  • Contributors: Aoi Nakane, Jochen Sprickerhof, Kei Okada, Martin Günther, Naoto Tsukamoto, Shingo Kitagawa, Yuki Furuta, Iori Yanokura, Ivan Oliveira Tarifa

2.0.2 (2020-08-19)

  • .travis.yml: add noetic test (#108)
    • support oepncv4 for face detection launch/test files
    • convert img_gray every loop, this fixes [ERROR] [1597757072.115502734]: Image processing error: Matrix operand is an empty matrix. checkOperandsExist ../modules/core/src/matrix_expressions.cpp 23 errors
    • check CV_VERSION_VERSION > 4
    • add g++ static to package.xml
    • use python3 for noetic
    • .travis.yml : add CHECK_PYTHON3_COMPILE
    • .travis.yml: add noetic test
  • fix travis (#106)
    • add more package to CATKIN_DEPENDS
    • add image_view to run_depends
  • add hot fix for hydro test (#98)
    • add doublequote arount $TEST
    • add hot fix for hydro test
  • Improved variable names and comments (#95)
    • Improved variable names and comments: The comments and variable names were the opposite of what was functionally happening in the code. No functional change to this commit, just better readability and maintainability.
  • setup EoL repository (#96)
  • Contributors: Gus Crowards, Kei Okada

2.0.1 (2019-04-22)

  • support catkin_lint and clang-format tests in travis.yml (#93)
    • override is not supported gcc4.6 (12.04), remove this fix and add NOLINT
    • clang-tidy code need c++11
    • fix code by run-clang-tidy -fix
    • fix format by clang-format
    • fix CMakeLists.txt and package.xml for catkin_lint
    • support catkin_lint and clang-format tests
  • add queue_size parameter to all nodes, see #83 (#92)
    • add queue_size arg to launch files
    • sometimes simple_example_test fails with 'average rate (36.121Hz) exceeded maximum (35.000Hz)'

File truncated at 100 lines see the full file

Launch files

  • launch/adding_images.launch
      • node_name [default: adding_images]
      • image1 [default: image1] — The image topic. Should be remapped to the name of the real image topic.
      • image2 [default: image2] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • alpha [default: 0.5] — Weight of the first array elements
      • gamma [default: 0] — Scalar added to each sum
      • approximate_sync [default: false] — Flag of approximate_sync. If this value is false, image1 and image2 synchronize exact time.
  • launch/camshift.launch
      • node_name [default: camshift]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram [default: [0.0, 255.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]] — Histogram of tracked color object
      • vmin [default: 10] — Min threshould of lightness.
      • vmax [default: 230] — Max threshould of lightness.
      • smin [default: 60] — Min value of saturation.
  • launch/contour_moments.launch
      • node_name [default: contour_moments]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 100] — Canny Edge low Threshold
  • launch/convex_hull.launch
      • node_name [default: convex_hull]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/corner_harris.launch
      • node_name [default: corner_harris]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 200] — Threshold value of a circle around corners's norm
  • launch/discrete_fourier_transform.launch
      • node_name [default: discrete_fourier_transform]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 1] — Specigy queue_size of input image subscribers
  • launch/edge_detection.launch
      • node_name [default: edge_detection]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • edge_type [default: 0] — Specify edge dtection methods. 0: Sobel Derivatives, 1: Lapalace Operator, 2, Canny Edge Detector.
      • canny_threshold1 [default: 100] — Specify second canny threashold value.
      • canny_threshold2 [default: 200] — Specity first canny threashold value.
      • apertureSize [default: 3] — Aperture size for the Sobel() operator.
      • apply_blur_pre [default: true] — Flag, applying Blur() to input image
      • postBlurSize [default: 13] — Aperture size for the Blur() to input image()
      • postBlurSigma [default: 3.2] — Sigma for the GaussianBlur() to input image.
      • apply_blur_post [default: false] — Flag, applying GaussinaBlur() to output(edge) image
      • L2gradient [default: false] — Flag, L2Gradient
  • launch/equalize_histogram.launch
      • node_name [default: equalize_histogram]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram_equalization_type [default: 0] — Specify histogram equaliztion methods. 0: Default, 1: Clahe
      • clahe_clip_limit [default: 255.0] — The maximum allowed field value Clip Limit
      • clahe_tile_size_x [default: 300] — The maximum allowed field value Threshold X Limit
      • clahe_tile_size_y [default: 300] — The maximum allowed field value Threshold Y Limit
      • use_opencl [default: true] — Enable or disable OpenCL
  • launch/face_detection.launch
      • node_name [default: face_detection]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: $(arg use_opencv3)]
      • use_opencv4 [default: false]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
  • launch/face_recognition.launch
      • launch_face_detection [default: true]
      • launch_trainer [default: true]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: false]
      • use_opencv4 [default: false]
      • debug_view [default: true]
      • queue_size [default: 100] — Specigy queue_size of input image subscribers
      • image [default: image]
      • data_dir [default: ~/.ros/opencv_apps/face_data]
  • launch/fback_flow.launch
      • node_name [default: fback_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/find_contours.launch
      • node_name [default: find_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 10] — Lower threshold for the internal Canny edge detector.
  • launch/general_contours.launch
      • node_name [default: general_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/goodfeature_track.launch
      • node_name [default: goodfeature_track]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • max_corners [default: 23] — Maximum number of corners to return. If there are more corners than are found, the strongest of them is returned.
  • launch/hls_color_filter.launch
      • node_name [default: hls_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • l_limit_max [default: 255] — The maximum allowed field value Luminance
      • l_limit_min [default: 50] — The minimum allowed field value Luminance
  • launch/hough_circles.launch
      • node_name [default: hough_circles]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_threshold [default: 200] — Upper threshold for the internal Canny edge detector.
      • accumulator_threshold [default: 50] — Threshold for center detection.
      • gaussian_blur_size [default: 9] — The size of gaussian blur (should be odd number)
      • gaussian_sigma_x [default: 2] — Sigma x of gaussian kernel
      • gaussian_sigma_y [default: 2] — Sigma y of gaussian kernel
      • dp [default: 2] — The inverse ratio of resolution.
      • min_circle_radius [default: 0] — The minimum size of the circle, If unknown, put zero as default
      • max_circle_radius [default: 0] — The maximum size of the circle, If unknown, put zero as default.
  • launch/hough_lines.launch
      • node_name [default: hough_lines]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hough_type [default: 0] — Apecify Hough transform type, 0 for Standard Hough Detection and 1 for Probabilistic Hough Detection
      • threshold [default: 150] — Threshould value for hough line detection
      • rho [default: 1.0] — The resolution of the parameter r in pixels.
      • theta [default: 1.0] — The resolution of the parameter theta in radians.
      • minLineLength [default: 30] — The minimum number of points that can form a line.
      • maxLineGrap [default: 10] — The maximum gap between two points to be considered in the same line.
  • launch/hsv_color_filter.launch
      • node_name [default: hsv_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • v_limit_max [default: 255] — The maximum allowed field value Value
      • v_limit_min [default: 50] — The minimum allowed field value Value
  • launch/lab_color_filter.launch
      • node_name [default: lab_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • l_limit_max [default: 255] — The maximum allowed field value L*
      • l_limit_min [default: 50] — The minimum allowed field value L*
      • a_limit_max [default: 250] — The maximum allowed field value a*
      • a_limit_min [default: 0] — The minimum allowed field value a*
      • b_limit_max [default: 255] — The maximum allowed field value b*
      • b_limit_min [default: 150] — The minimum allowed field value b*
  • launch/lk_flow.launch
      • node_name [default: lk_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • quality_level [default: 0.01] — Parameter characterizing the minimal acceptance quality of image corners.
      • min_distance [default: 10] — Minimum possible Euclidean distance between the returned corners.
      • block_size [default: 3] — Size of an average block for computing a derivative covariation matrix over each pixel neighborhood.
      • harris_k [default: 0.04] — Free parameter of the Harris detector
  • launch/morphology.launch
      • node_name [default: morphology]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • morph_operator [default: 0] — Morphology Operation Methods 0: Opening, 1: Closing, 2: Gradient, 3: Top Hat, 4: Black Hat
      • morph_element [default: 0] — Type of the kernel 0: Rect, 1: Cross, 2: Ellipse
      • morph_size [default: 0] — Size of the kernel
  • launch/people_detect.launch
      • node_name [default: people_detect]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hit_threshold [default: 0] — Threshold for the distance between features and SVM classifying plane
      • win_stride [default: 8] — Window stride. It must be a multiple of block stride.
      • padding [default: 32] — Mock parameter to keep the CPU interface compatibility. It must be (0,0).
      • scale0 [default: 1.05] — Coefficient of the detection window increase.
      • group_threshold [default: 2] — Coefficient to regulate the similarity threshold. When detected, some objects can be covered by many rectangles. 0 means not to perform grouping.
  • launch/phase_corr.launch
      • node_name [default: phase_corr]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/pyramids.launch
      • node_name [default: pyramids]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show pyramids image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • pyramids_type [default: 0] — Specify pyramids Up/Down. 0: Up size(zoom in), 1: Down size(zoom out).
      • num_of_pyramids [default: 0] — Number of Up/Down sampling.
  • launch/rgb_color_filter.launch
      • node_name [default: rgb_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • r_limit_max [default: 250] — The maximum allowed field value Red
      • r_limit_min [default: 50] — The minimum allowed field value Red
      • g_limit_max [default: 200] — The maximum allowed field value Green
      • g_limit_min [default: 100] — The minimum allowed field value Green
      • b_limit_max [default: 150] — The maximum allowed field value Blue
      • b_limit_min [default: 20] — The minimum allowed field value Blue
  • launch/segment_objects.launch
      • node_name [default: segment_objects]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/simple_flow.launch
      • node_name [default: simple_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • scale [default: 8] — Specify the scale factor to calculate optical flow.
  • launch/smoothing.launch
      • node_name [default: smoothing]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • filter_type [default: 0] — Smoothing Filter Methods. 0:Homogeneous blur, 1:Gaussian blur, 2:Median blur, 3:Bilateral Filter.
      • kernel_size [default: 7] — Size of the kernel (only one because we use a square window). Must be odd.
  • launch/threshold.launch
      • node_name [default: threshold]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • apply_otsu [default: false] — Decide applying Otsu's algotirhm threshold. If this value is true, threshold value will be ignored
      • threshold_type [default: 0] — Specify threshold types. 0: Binary threshold, 1: Binary inverted threshold, 2: Threshold truncated, 3: Threshold to zero, 4: Threshold to zero inverted
      • threshold [default: 150] — threshold value
      • max_binary [default: 255] — maximum value to use with the 0: Binary thresholding and 1: Binary inverted thresholding types.
  • launch/watershed_segmentation.launch
      • node_name [default: watershed_segmentation]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers

Plugins

Recent questions tagged opencv_apps at Robotics Stack Exchange

Package symbol

opencv_apps package from opencv_apps repo

opencv_apps

ROS Distro
lunar

Package Summary

Tags No category tags.
Version 2.0.3
License BSD
Build type CATKIN
Use RECOMMENDED

Repository Summary

Checkout URI https://github.com/ros-perception/opencv_apps.git
VCS Type git
VCS Version indigo
Last Updated 2025-05-22
Dev Status DEVELOPED
Released RELEASED
Tags No category tags.
Contributing Help Wanted (-)
Good First Issues (-)
Pull Requests to Review (-)

Package Description

Additional Links

No additional links.

Maintainers

  • Kei Okada

Authors

  • Kei Okada

opencv_apps

Travis CI Build Status

Indigo Trusty Build Status

Kinetic Xenial Build Status

Melodic Bionic Build Status

Documentation http://wiki.ros.org/opencv_apps

CHANGELOG

Changelog for package opencv_apps

2.0.3 (2025-05-22)

  • [lk_flow] Keep matching information for sparse optical flow (#149)
  • use bgr8 for output visualization (#145)
  • add ROS-O test (#147)
  • Suppress cmake warning (#146)
  • [TEST] Fix catkin_lint version 1.6.18 to avoid [cmake_minimum_required]{.title-ref} error (#143)
  • Add sync_.reset/async_.reset to destructor in face_recognition (#139)
  • fix github actions (#140)
  • fix missing .git directory (#136)
  • Add histogram equalization default and clahe (#126)
  • check all output of test/test-pyramids.test (#127)
  • tests: properly remap camera_info (#125)
  • add Morphology Transformations nodelet (#122)
  • add test to check when adding two images, whcih has different size. (#123)
  • contour_moments_nodelet: don't publish empty image (#124)
  • Add Lab color filter (#114)
  • add test to check on debain_unstable (#121)
  • Remove timestamp from face_data.tar.gz (#117)
  • use snapshot of rosdep list (#120)
  • fix travis, speed up GA tests (#116)
  • add .github/workflows (#115)
  • Contributors: Aoi Nakane, Jochen Sprickerhof, Kei Okada, Martin Günther, Naoto Tsukamoto, Shingo Kitagawa, Yuki Furuta, Iori Yanokura, Ivan Oliveira Tarifa

2.0.2 (2020-08-19)

  • .travis.yml: add noetic test (#108)
    • support oepncv4 for face detection launch/test files
    • convert img_gray every loop, this fixes [ERROR] [1597757072.115502734]: Image processing error: Matrix operand is an empty matrix. checkOperandsExist ../modules/core/src/matrix_expressions.cpp 23 errors
    • check CV_VERSION_VERSION > 4
    • add g++ static to package.xml
    • use python3 for noetic
    • .travis.yml : add CHECK_PYTHON3_COMPILE
    • .travis.yml: add noetic test
  • fix travis (#106)
    • add more package to CATKIN_DEPENDS
    • add image_view to run_depends
  • add hot fix for hydro test (#98)
    • add doublequote arount $TEST
    • add hot fix for hydro test
  • Improved variable names and comments (#95)
    • Improved variable names and comments: The comments and variable names were the opposite of what was functionally happening in the code. No functional change to this commit, just better readability and maintainability.
  • setup EoL repository (#96)
  • Contributors: Gus Crowards, Kei Okada

2.0.1 (2019-04-22)

  • support catkin_lint and clang-format tests in travis.yml (#93)
    • override is not supported gcc4.6 (12.04), remove this fix and add NOLINT
    • clang-tidy code need c++11
    • fix code by run-clang-tidy -fix
    • fix format by clang-format
    • fix CMakeLists.txt and package.xml for catkin_lint
    • support catkin_lint and clang-format tests
  • add queue_size parameter to all nodes, see #83 (#92)
    • add queue_size arg to launch files
    • sometimes simple_example_test fails with 'average rate (36.121Hz) exceeded maximum (35.000Hz)'

File truncated at 100 lines see the full file

Launch files

  • launch/adding_images.launch
      • node_name [default: adding_images]
      • image1 [default: image1] — The image topic. Should be remapped to the name of the real image topic.
      • image2 [default: image2] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • alpha [default: 0.5] — Weight of the first array elements
      • gamma [default: 0] — Scalar added to each sum
      • approximate_sync [default: false] — Flag of approximate_sync. If this value is false, image1 and image2 synchronize exact time.
  • launch/camshift.launch
      • node_name [default: camshift]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram [default: [0.0, 255.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]] — Histogram of tracked color object
      • vmin [default: 10] — Min threshould of lightness.
      • vmax [default: 230] — Max threshould of lightness.
      • smin [default: 60] — Min value of saturation.
  • launch/contour_moments.launch
      • node_name [default: contour_moments]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 100] — Canny Edge low Threshold
  • launch/convex_hull.launch
      • node_name [default: convex_hull]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/corner_harris.launch
      • node_name [default: corner_harris]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 200] — Threshold value of a circle around corners's norm
  • launch/discrete_fourier_transform.launch
      • node_name [default: discrete_fourier_transform]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 1] — Specigy queue_size of input image subscribers
  • launch/edge_detection.launch
      • node_name [default: edge_detection]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • edge_type [default: 0] — Specify edge dtection methods. 0: Sobel Derivatives, 1: Lapalace Operator, 2, Canny Edge Detector.
      • canny_threshold1 [default: 100] — Specify second canny threashold value.
      • canny_threshold2 [default: 200] — Specity first canny threashold value.
      • apertureSize [default: 3] — Aperture size for the Sobel() operator.
      • apply_blur_pre [default: true] — Flag, applying Blur() to input image
      • postBlurSize [default: 13] — Aperture size for the Blur() to input image()
      • postBlurSigma [default: 3.2] — Sigma for the GaussianBlur() to input image.
      • apply_blur_post [default: false] — Flag, applying GaussinaBlur() to output(edge) image
      • L2gradient [default: false] — Flag, L2Gradient
  • launch/equalize_histogram.launch
      • node_name [default: equalize_histogram]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram_equalization_type [default: 0] — Specify histogram equaliztion methods. 0: Default, 1: Clahe
      • clahe_clip_limit [default: 255.0] — The maximum allowed field value Clip Limit
      • clahe_tile_size_x [default: 300] — The maximum allowed field value Threshold X Limit
      • clahe_tile_size_y [default: 300] — The maximum allowed field value Threshold Y Limit
      • use_opencl [default: true] — Enable or disable OpenCL
  • launch/face_detection.launch
      • node_name [default: face_detection]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: $(arg use_opencv3)]
      • use_opencv4 [default: false]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
  • launch/face_recognition.launch
      • launch_face_detection [default: true]
      • launch_trainer [default: true]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: false]
      • use_opencv4 [default: false]
      • debug_view [default: true]
      • queue_size [default: 100] — Specigy queue_size of input image subscribers
      • image [default: image]
      • data_dir [default: ~/.ros/opencv_apps/face_data]
  • launch/fback_flow.launch
      • node_name [default: fback_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/find_contours.launch
      • node_name [default: find_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 10] — Lower threshold for the internal Canny edge detector.
  • launch/general_contours.launch
      • node_name [default: general_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/goodfeature_track.launch
      • node_name [default: goodfeature_track]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • max_corners [default: 23] — Maximum number of corners to return. If there are more corners than are found, the strongest of them is returned.
  • launch/hls_color_filter.launch
      • node_name [default: hls_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • l_limit_max [default: 255] — The maximum allowed field value Luminance
      • l_limit_min [default: 50] — The minimum allowed field value Luminance
  • launch/hough_circles.launch
      • node_name [default: hough_circles]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_threshold [default: 200] — Upper threshold for the internal Canny edge detector.
      • accumulator_threshold [default: 50] — Threshold for center detection.
      • gaussian_blur_size [default: 9] — The size of gaussian blur (should be odd number)
      • gaussian_sigma_x [default: 2] — Sigma x of gaussian kernel
      • gaussian_sigma_y [default: 2] — Sigma y of gaussian kernel
      • dp [default: 2] — The inverse ratio of resolution.
      • min_circle_radius [default: 0] — The minimum size of the circle, If unknown, put zero as default
      • max_circle_radius [default: 0] — The maximum size of the circle, If unknown, put zero as default.
  • launch/hough_lines.launch
      • node_name [default: hough_lines]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hough_type [default: 0] — Apecify Hough transform type, 0 for Standard Hough Detection and 1 for Probabilistic Hough Detection
      • threshold [default: 150] — Threshould value for hough line detection
      • rho [default: 1.0] — The resolution of the parameter r in pixels.
      • theta [default: 1.0] — The resolution of the parameter theta in radians.
      • minLineLength [default: 30] — The minimum number of points that can form a line.
      • maxLineGrap [default: 10] — The maximum gap between two points to be considered in the same line.
  • launch/hsv_color_filter.launch
      • node_name [default: hsv_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • v_limit_max [default: 255] — The maximum allowed field value Value
      • v_limit_min [default: 50] — The minimum allowed field value Value
  • launch/lab_color_filter.launch
      • node_name [default: lab_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • l_limit_max [default: 255] — The maximum allowed field value L*
      • l_limit_min [default: 50] — The minimum allowed field value L*
      • a_limit_max [default: 250] — The maximum allowed field value a*
      • a_limit_min [default: 0] — The minimum allowed field value a*
      • b_limit_max [default: 255] — The maximum allowed field value b*
      • b_limit_min [default: 150] — The minimum allowed field value b*
  • launch/lk_flow.launch
      • node_name [default: lk_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • quality_level [default: 0.01] — Parameter characterizing the minimal acceptance quality of image corners.
      • min_distance [default: 10] — Minimum possible Euclidean distance between the returned corners.
      • block_size [default: 3] — Size of an average block for computing a derivative covariation matrix over each pixel neighborhood.
      • harris_k [default: 0.04] — Free parameter of the Harris detector
  • launch/morphology.launch
      • node_name [default: morphology]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • morph_operator [default: 0] — Morphology Operation Methods 0: Opening, 1: Closing, 2: Gradient, 3: Top Hat, 4: Black Hat
      • morph_element [default: 0] — Type of the kernel 0: Rect, 1: Cross, 2: Ellipse
      • morph_size [default: 0] — Size of the kernel
  • launch/people_detect.launch
      • node_name [default: people_detect]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hit_threshold [default: 0] — Threshold for the distance between features and SVM classifying plane
      • win_stride [default: 8] — Window stride. It must be a multiple of block stride.
      • padding [default: 32] — Mock parameter to keep the CPU interface compatibility. It must be (0,0).
      • scale0 [default: 1.05] — Coefficient of the detection window increase.
      • group_threshold [default: 2] — Coefficient to regulate the similarity threshold. When detected, some objects can be covered by many rectangles. 0 means not to perform grouping.
  • launch/phase_corr.launch
      • node_name [default: phase_corr]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/pyramids.launch
      • node_name [default: pyramids]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show pyramids image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • pyramids_type [default: 0] — Specify pyramids Up/Down. 0: Up size(zoom in), 1: Down size(zoom out).
      • num_of_pyramids [default: 0] — Number of Up/Down sampling.
  • launch/rgb_color_filter.launch
      • node_name [default: rgb_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • r_limit_max [default: 250] — The maximum allowed field value Red
      • r_limit_min [default: 50] — The minimum allowed field value Red
      • g_limit_max [default: 200] — The maximum allowed field value Green
      • g_limit_min [default: 100] — The minimum allowed field value Green
      • b_limit_max [default: 150] — The maximum allowed field value Blue
      • b_limit_min [default: 20] — The minimum allowed field value Blue
  • launch/segment_objects.launch
      • node_name [default: segment_objects]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/simple_flow.launch
      • node_name [default: simple_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • scale [default: 8] — Specify the scale factor to calculate optical flow.
  • launch/smoothing.launch
      • node_name [default: smoothing]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • filter_type [default: 0] — Smoothing Filter Methods. 0:Homogeneous blur, 1:Gaussian blur, 2:Median blur, 3:Bilateral Filter.
      • kernel_size [default: 7] — Size of the kernel (only one because we use a square window). Must be odd.
  • launch/threshold.launch
      • node_name [default: threshold]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • apply_otsu [default: false] — Decide applying Otsu's algotirhm threshold. If this value is true, threshold value will be ignored
      • threshold_type [default: 0] — Specify threshold types. 0: Binary threshold, 1: Binary inverted threshold, 2: Threshold truncated, 3: Threshold to zero, 4: Threshold to zero inverted
      • threshold [default: 150] — threshold value
      • max_binary [default: 255] — maximum value to use with the 0: Binary thresholding and 1: Binary inverted thresholding types.
  • launch/watershed_segmentation.launch
      • node_name [default: watershed_segmentation]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers

Plugins

Recent questions tagged opencv_apps at Robotics Stack Exchange

Package symbol

opencv_apps package from opencv_apps repo

opencv_apps

ROS Distro
jade

Package Summary

Tags No category tags.
Version 2.0.3
License BSD
Build type CATKIN
Use RECOMMENDED

Repository Summary

Checkout URI https://github.com/ros-perception/opencv_apps.git
VCS Type git
VCS Version indigo
Last Updated 2025-05-22
Dev Status DEVELOPED
Released RELEASED
Tags No category tags.
Contributing Help Wanted (-)
Good First Issues (-)
Pull Requests to Review (-)

Package Description

Additional Links

No additional links.

Maintainers

  • Kei Okada

Authors

  • Kei Okada

opencv_apps

Travis CI Build Status

Indigo Trusty Build Status

Kinetic Xenial Build Status

Melodic Bionic Build Status

Documentation http://wiki.ros.org/opencv_apps

CHANGELOG

Changelog for package opencv_apps

2.0.3 (2025-05-22)

  • [lk_flow] Keep matching information for sparse optical flow (#149)
  • use bgr8 for output visualization (#145)
  • add ROS-O test (#147)
  • Suppress cmake warning (#146)
  • [TEST] Fix catkin_lint version 1.6.18 to avoid [cmake_minimum_required]{.title-ref} error (#143)
  • Add sync_.reset/async_.reset to destructor in face_recognition (#139)
  • fix github actions (#140)
  • fix missing .git directory (#136)
  • Add histogram equalization default and clahe (#126)
  • check all output of test/test-pyramids.test (#127)
  • tests: properly remap camera_info (#125)
  • add Morphology Transformations nodelet (#122)
  • add test to check when adding two images, whcih has different size. (#123)
  • contour_moments_nodelet: don't publish empty image (#124)
  • Add Lab color filter (#114)
  • add test to check on debain_unstable (#121)
  • Remove timestamp from face_data.tar.gz (#117)
  • use snapshot of rosdep list (#120)
  • fix travis, speed up GA tests (#116)
  • add .github/workflows (#115)
  • Contributors: Aoi Nakane, Jochen Sprickerhof, Kei Okada, Martin Günther, Naoto Tsukamoto, Shingo Kitagawa, Yuki Furuta, Iori Yanokura, Ivan Oliveira Tarifa

2.0.2 (2020-08-19)

  • .travis.yml: add noetic test (#108)
    • support oepncv4 for face detection launch/test files
    • convert img_gray every loop, this fixes [ERROR] [1597757072.115502734]: Image processing error: Matrix operand is an empty matrix. checkOperandsExist ../modules/core/src/matrix_expressions.cpp 23 errors
    • check CV_VERSION_VERSION > 4
    • add g++ static to package.xml
    • use python3 for noetic
    • .travis.yml : add CHECK_PYTHON3_COMPILE
    • .travis.yml: add noetic test
  • fix travis (#106)
    • add more package to CATKIN_DEPENDS
    • add image_view to run_depends
  • add hot fix for hydro test (#98)
    • add doublequote arount $TEST
    • add hot fix for hydro test
  • Improved variable names and comments (#95)
    • Improved variable names and comments: The comments and variable names were the opposite of what was functionally happening in the code. No functional change to this commit, just better readability and maintainability.
  • setup EoL repository (#96)
  • Contributors: Gus Crowards, Kei Okada

2.0.1 (2019-04-22)

  • support catkin_lint and clang-format tests in travis.yml (#93)
    • override is not supported gcc4.6 (12.04), remove this fix and add NOLINT
    • clang-tidy code need c++11
    • fix code by run-clang-tidy -fix
    • fix format by clang-format
    • fix CMakeLists.txt and package.xml for catkin_lint
    • support catkin_lint and clang-format tests
  • add queue_size parameter to all nodes, see #83 (#92)
    • add queue_size arg to launch files
    • sometimes simple_example_test fails with 'average rate (36.121Hz) exceeded maximum (35.000Hz)'

File truncated at 100 lines see the full file

Launch files

  • launch/adding_images.launch
      • node_name [default: adding_images]
      • image1 [default: image1] — The image topic. Should be remapped to the name of the real image topic.
      • image2 [default: image2] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • alpha [default: 0.5] — Weight of the first array elements
      • gamma [default: 0] — Scalar added to each sum
      • approximate_sync [default: false] — Flag of approximate_sync. If this value is false, image1 and image2 synchronize exact time.
  • launch/camshift.launch
      • node_name [default: camshift]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram [default: [0.0, 255.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]] — Histogram of tracked color object
      • vmin [default: 10] — Min threshould of lightness.
      • vmax [default: 230] — Max threshould of lightness.
      • smin [default: 60] — Min value of saturation.
  • launch/contour_moments.launch
      • node_name [default: contour_moments]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 100] — Canny Edge low Threshold
  • launch/convex_hull.launch
      • node_name [default: convex_hull]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/corner_harris.launch
      • node_name [default: corner_harris]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 200] — Threshold value of a circle around corners's norm
  • launch/discrete_fourier_transform.launch
      • node_name [default: discrete_fourier_transform]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 1] — Specigy queue_size of input image subscribers
  • launch/edge_detection.launch
      • node_name [default: edge_detection]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • edge_type [default: 0] — Specify edge dtection methods. 0: Sobel Derivatives, 1: Lapalace Operator, 2, Canny Edge Detector.
      • canny_threshold1 [default: 100] — Specify second canny threashold value.
      • canny_threshold2 [default: 200] — Specity first canny threashold value.
      • apertureSize [default: 3] — Aperture size for the Sobel() operator.
      • apply_blur_pre [default: true] — Flag, applying Blur() to input image
      • postBlurSize [default: 13] — Aperture size for the Blur() to input image()
      • postBlurSigma [default: 3.2] — Sigma for the GaussianBlur() to input image.
      • apply_blur_post [default: false] — Flag, applying GaussinaBlur() to output(edge) image
      • L2gradient [default: false] — Flag, L2Gradient
  • launch/equalize_histogram.launch
      • node_name [default: equalize_histogram]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram_equalization_type [default: 0] — Specify histogram equaliztion methods. 0: Default, 1: Clahe
      • clahe_clip_limit [default: 255.0] — The maximum allowed field value Clip Limit
      • clahe_tile_size_x [default: 300] — The maximum allowed field value Threshold X Limit
      • clahe_tile_size_y [default: 300] — The maximum allowed field value Threshold Y Limit
      • use_opencl [default: true] — Enable or disable OpenCL
  • launch/face_detection.launch
      • node_name [default: face_detection]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: $(arg use_opencv3)]
      • use_opencv4 [default: false]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
  • launch/face_recognition.launch
      • launch_face_detection [default: true]
      • launch_trainer [default: true]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: false]
      • use_opencv4 [default: false]
      • debug_view [default: true]
      • queue_size [default: 100] — Specigy queue_size of input image subscribers
      • image [default: image]
      • data_dir [default: ~/.ros/opencv_apps/face_data]
  • launch/fback_flow.launch
      • node_name [default: fback_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/find_contours.launch
      • node_name [default: find_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 10] — Lower threshold for the internal Canny edge detector.
  • launch/general_contours.launch
      • node_name [default: general_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/goodfeature_track.launch
      • node_name [default: goodfeature_track]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • max_corners [default: 23] — Maximum number of corners to return. If there are more corners than are found, the strongest of them is returned.
  • launch/hls_color_filter.launch
      • node_name [default: hls_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • l_limit_max [default: 255] — The maximum allowed field value Luminance
      • l_limit_min [default: 50] — The minimum allowed field value Luminance
  • launch/hough_circles.launch
      • node_name [default: hough_circles]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_threshold [default: 200] — Upper threshold for the internal Canny edge detector.
      • accumulator_threshold [default: 50] — Threshold for center detection.
      • gaussian_blur_size [default: 9] — The size of gaussian blur (should be odd number)
      • gaussian_sigma_x [default: 2] — Sigma x of gaussian kernel
      • gaussian_sigma_y [default: 2] — Sigma y of gaussian kernel
      • dp [default: 2] — The inverse ratio of resolution.
      • min_circle_radius [default: 0] — The minimum size of the circle, If unknown, put zero as default
      • max_circle_radius [default: 0] — The maximum size of the circle, If unknown, put zero as default.
  • launch/hough_lines.launch
      • node_name [default: hough_lines]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hough_type [default: 0] — Apecify Hough transform type, 0 for Standard Hough Detection and 1 for Probabilistic Hough Detection
      • threshold [default: 150] — Threshould value for hough line detection
      • rho [default: 1.0] — The resolution of the parameter r in pixels.
      • theta [default: 1.0] — The resolution of the parameter theta in radians.
      • minLineLength [default: 30] — The minimum number of points that can form a line.
      • maxLineGrap [default: 10] — The maximum gap between two points to be considered in the same line.
  • launch/hsv_color_filter.launch
      • node_name [default: hsv_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • v_limit_max [default: 255] — The maximum allowed field value Value
      • v_limit_min [default: 50] — The minimum allowed field value Value
  • launch/lab_color_filter.launch
      • node_name [default: lab_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • l_limit_max [default: 255] — The maximum allowed field value L*
      • l_limit_min [default: 50] — The minimum allowed field value L*
      • a_limit_max [default: 250] — The maximum allowed field value a*
      • a_limit_min [default: 0] — The minimum allowed field value a*
      • b_limit_max [default: 255] — The maximum allowed field value b*
      • b_limit_min [default: 150] — The minimum allowed field value b*
  • launch/lk_flow.launch
      • node_name [default: lk_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • quality_level [default: 0.01] — Parameter characterizing the minimal acceptance quality of image corners.
      • min_distance [default: 10] — Minimum possible Euclidean distance between the returned corners.
      • block_size [default: 3] — Size of an average block for computing a derivative covariation matrix over each pixel neighborhood.
      • harris_k [default: 0.04] — Free parameter of the Harris detector
  • launch/morphology.launch
      • node_name [default: morphology]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • morph_operator [default: 0] — Morphology Operation Methods 0: Opening, 1: Closing, 2: Gradient, 3: Top Hat, 4: Black Hat
      • morph_element [default: 0] — Type of the kernel 0: Rect, 1: Cross, 2: Ellipse
      • morph_size [default: 0] — Size of the kernel
  • launch/people_detect.launch
      • node_name [default: people_detect]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hit_threshold [default: 0] — Threshold for the distance between features and SVM classifying plane
      • win_stride [default: 8] — Window stride. It must be a multiple of block stride.
      • padding [default: 32] — Mock parameter to keep the CPU interface compatibility. It must be (0,0).
      • scale0 [default: 1.05] — Coefficient of the detection window increase.
      • group_threshold [default: 2] — Coefficient to regulate the similarity threshold. When detected, some objects can be covered by many rectangles. 0 means not to perform grouping.
  • launch/phase_corr.launch
      • node_name [default: phase_corr]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/pyramids.launch
      • node_name [default: pyramids]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show pyramids image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • pyramids_type [default: 0] — Specify pyramids Up/Down. 0: Up size(zoom in), 1: Down size(zoom out).
      • num_of_pyramids [default: 0] — Number of Up/Down sampling.
  • launch/rgb_color_filter.launch
      • node_name [default: rgb_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • r_limit_max [default: 250] — The maximum allowed field value Red
      • r_limit_min [default: 50] — The minimum allowed field value Red
      • g_limit_max [default: 200] — The maximum allowed field value Green
      • g_limit_min [default: 100] — The minimum allowed field value Green
      • b_limit_max [default: 150] — The maximum allowed field value Blue
      • b_limit_min [default: 20] — The minimum allowed field value Blue
  • launch/segment_objects.launch
      • node_name [default: segment_objects]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/simple_flow.launch
      • node_name [default: simple_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • scale [default: 8] — Specify the scale factor to calculate optical flow.
  • launch/smoothing.launch
      • node_name [default: smoothing]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • filter_type [default: 0] — Smoothing Filter Methods. 0:Homogeneous blur, 1:Gaussian blur, 2:Median blur, 3:Bilateral Filter.
      • kernel_size [default: 7] — Size of the kernel (only one because we use a square window). Must be odd.
  • launch/threshold.launch
      • node_name [default: threshold]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • apply_otsu [default: false] — Decide applying Otsu's algotirhm threshold. If this value is true, threshold value will be ignored
      • threshold_type [default: 0] — Specify threshold types. 0: Binary threshold, 1: Binary inverted threshold, 2: Threshold truncated, 3: Threshold to zero, 4: Threshold to zero inverted
      • threshold [default: 150] — threshold value
      • max_binary [default: 255] — maximum value to use with the 0: Binary thresholding and 1: Binary inverted thresholding types.
  • launch/watershed_segmentation.launch
      • node_name [default: watershed_segmentation]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers

Plugins

Recent questions tagged opencv_apps at Robotics Stack Exchange

Package symbol

opencv_apps package from opencv_apps repo

opencv_apps

ROS Distro
indigo

Package Summary

Tags No category tags.
Version 2.0.3
License BSD
Build type CATKIN
Use RECOMMENDED

Repository Summary

Checkout URI https://github.com/ros-perception/opencv_apps.git
VCS Type git
VCS Version indigo
Last Updated 2025-05-22
Dev Status DEVELOPED
Released RELEASED
Tags No category tags.
Contributing Help Wanted (-)
Good First Issues (-)
Pull Requests to Review (-)

Package Description

Additional Links

No additional links.

Maintainers

  • Kei Okada

Authors

  • Kei Okada

opencv_apps

Travis CI Build Status

Indigo Trusty Build Status

Kinetic Xenial Build Status

Melodic Bionic Build Status

Documentation http://wiki.ros.org/opencv_apps

CHANGELOG

Changelog for package opencv_apps

2.0.3 (2025-05-22)

  • [lk_flow] Keep matching information for sparse optical flow (#149)
  • use bgr8 for output visualization (#145)
  • add ROS-O test (#147)
  • Suppress cmake warning (#146)
  • [TEST] Fix catkin_lint version 1.6.18 to avoid [cmake_minimum_required]{.title-ref} error (#143)
  • Add sync_.reset/async_.reset to destructor in face_recognition (#139)
  • fix github actions (#140)
  • fix missing .git directory (#136)
  • Add histogram equalization default and clahe (#126)
  • check all output of test/test-pyramids.test (#127)
  • tests: properly remap camera_info (#125)
  • add Morphology Transformations nodelet (#122)
  • add test to check when adding two images, whcih has different size. (#123)
  • contour_moments_nodelet: don't publish empty image (#124)
  • Add Lab color filter (#114)
  • add test to check on debain_unstable (#121)
  • Remove timestamp from face_data.tar.gz (#117)
  • use snapshot of rosdep list (#120)
  • fix travis, speed up GA tests (#116)
  • add .github/workflows (#115)
  • Contributors: Aoi Nakane, Jochen Sprickerhof, Kei Okada, Martin Günther, Naoto Tsukamoto, Shingo Kitagawa, Yuki Furuta, Iori Yanokura, Ivan Oliveira Tarifa

2.0.2 (2020-08-19)

  • .travis.yml: add noetic test (#108)
    • support oepncv4 for face detection launch/test files
    • convert img_gray every loop, this fixes [ERROR] [1597757072.115502734]: Image processing error: Matrix operand is an empty matrix. checkOperandsExist ../modules/core/src/matrix_expressions.cpp 23 errors
    • check CV_VERSION_VERSION > 4
    • add g++ static to package.xml
    • use python3 for noetic
    • .travis.yml : add CHECK_PYTHON3_COMPILE
    • .travis.yml: add noetic test
  • fix travis (#106)
    • add more package to CATKIN_DEPENDS
    • add image_view to run_depends
  • add hot fix for hydro test (#98)
    • add doublequote arount $TEST
    • add hot fix for hydro test
  • Improved variable names and comments (#95)
    • Improved variable names and comments: The comments and variable names were the opposite of what was functionally happening in the code. No functional change to this commit, just better readability and maintainability.
  • setup EoL repository (#96)
  • Contributors: Gus Crowards, Kei Okada

2.0.1 (2019-04-22)

  • support catkin_lint and clang-format tests in travis.yml (#93)
    • override is not supported gcc4.6 (12.04), remove this fix and add NOLINT
    • clang-tidy code need c++11
    • fix code by run-clang-tidy -fix
    • fix format by clang-format
    • fix CMakeLists.txt and package.xml for catkin_lint
    • support catkin_lint and clang-format tests
  • add queue_size parameter to all nodes, see #83 (#92)
    • add queue_size arg to launch files
    • sometimes simple_example_test fails with 'average rate (36.121Hz) exceeded maximum (35.000Hz)'

File truncated at 100 lines see the full file

Launch files

  • launch/adding_images.launch
      • node_name [default: adding_images]
      • image1 [default: image1] — The image topic. Should be remapped to the name of the real image topic.
      • image2 [default: image2] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • alpha [default: 0.5] — Weight of the first array elements
      • gamma [default: 0] — Scalar added to each sum
      • approximate_sync [default: false] — Flag of approximate_sync. If this value is false, image1 and image2 synchronize exact time.
  • launch/camshift.launch
      • node_name [default: camshift]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram [default: [0.0, 255.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]] — Histogram of tracked color object
      • vmin [default: 10] — Min threshould of lightness.
      • vmax [default: 230] — Max threshould of lightness.
      • smin [default: 60] — Min value of saturation.
  • launch/contour_moments.launch
      • node_name [default: contour_moments]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 100] — Canny Edge low Threshold
  • launch/convex_hull.launch
      • node_name [default: convex_hull]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/corner_harris.launch
      • node_name [default: corner_harris]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 200] — Threshold value of a circle around corners's norm
  • launch/discrete_fourier_transform.launch
      • node_name [default: discrete_fourier_transform]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 1] — Specigy queue_size of input image subscribers
  • launch/edge_detection.launch
      • node_name [default: edge_detection]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • edge_type [default: 0] — Specify edge dtection methods. 0: Sobel Derivatives, 1: Lapalace Operator, 2, Canny Edge Detector.
      • canny_threshold1 [default: 100] — Specify second canny threashold value.
      • canny_threshold2 [default: 200] — Specity first canny threashold value.
      • apertureSize [default: 3] — Aperture size for the Sobel() operator.
      • apply_blur_pre [default: true] — Flag, applying Blur() to input image
      • postBlurSize [default: 13] — Aperture size for the Blur() to input image()
      • postBlurSigma [default: 3.2] — Sigma for the GaussianBlur() to input image.
      • apply_blur_post [default: false] — Flag, applying GaussinaBlur() to output(edge) image
      • L2gradient [default: false] — Flag, L2Gradient
  • launch/equalize_histogram.launch
      • node_name [default: equalize_histogram]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram_equalization_type [default: 0] — Specify histogram equaliztion methods. 0: Default, 1: Clahe
      • clahe_clip_limit [default: 255.0] — The maximum allowed field value Clip Limit
      • clahe_tile_size_x [default: 300] — The maximum allowed field value Threshold X Limit
      • clahe_tile_size_y [default: 300] — The maximum allowed field value Threshold Y Limit
      • use_opencl [default: true] — Enable or disable OpenCL
  • launch/face_detection.launch
      • node_name [default: face_detection]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: $(arg use_opencv3)]
      • use_opencv4 [default: false]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
  • launch/face_recognition.launch
      • launch_face_detection [default: true]
      • launch_trainer [default: true]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: false]
      • use_opencv4 [default: false]
      • debug_view [default: true]
      • queue_size [default: 100] — Specigy queue_size of input image subscribers
      • image [default: image]
      • data_dir [default: ~/.ros/opencv_apps/face_data]
  • launch/fback_flow.launch
      • node_name [default: fback_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/find_contours.launch
      • node_name [default: find_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 10] — Lower threshold for the internal Canny edge detector.
  • launch/general_contours.launch
      • node_name [default: general_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/goodfeature_track.launch
      • node_name [default: goodfeature_track]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • max_corners [default: 23] — Maximum number of corners to return. If there are more corners than are found, the strongest of them is returned.
  • launch/hls_color_filter.launch
      • node_name [default: hls_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • l_limit_max [default: 255] — The maximum allowed field value Luminance
      • l_limit_min [default: 50] — The minimum allowed field value Luminance
  • launch/hough_circles.launch
      • node_name [default: hough_circles]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_threshold [default: 200] — Upper threshold for the internal Canny edge detector.
      • accumulator_threshold [default: 50] — Threshold for center detection.
      • gaussian_blur_size [default: 9] — The size of gaussian blur (should be odd number)
      • gaussian_sigma_x [default: 2] — Sigma x of gaussian kernel
      • gaussian_sigma_y [default: 2] — Sigma y of gaussian kernel
      • dp [default: 2] — The inverse ratio of resolution.
      • min_circle_radius [default: 0] — The minimum size of the circle, If unknown, put zero as default
      • max_circle_radius [default: 0] — The maximum size of the circle, If unknown, put zero as default.
  • launch/hough_lines.launch
      • node_name [default: hough_lines]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hough_type [default: 0] — Apecify Hough transform type, 0 for Standard Hough Detection and 1 for Probabilistic Hough Detection
      • threshold [default: 150] — Threshould value for hough line detection
      • rho [default: 1.0] — The resolution of the parameter r in pixels.
      • theta [default: 1.0] — The resolution of the parameter theta in radians.
      • minLineLength [default: 30] — The minimum number of points that can form a line.
      • maxLineGrap [default: 10] — The maximum gap between two points to be considered in the same line.
  • launch/hsv_color_filter.launch
      • node_name [default: hsv_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • v_limit_max [default: 255] — The maximum allowed field value Value
      • v_limit_min [default: 50] — The minimum allowed field value Value
  • launch/lab_color_filter.launch
      • node_name [default: lab_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • l_limit_max [default: 255] — The maximum allowed field value L*
      • l_limit_min [default: 50] — The minimum allowed field value L*
      • a_limit_max [default: 250] — The maximum allowed field value a*
      • a_limit_min [default: 0] — The minimum allowed field value a*
      • b_limit_max [default: 255] — The maximum allowed field value b*
      • b_limit_min [default: 150] — The minimum allowed field value b*
  • launch/lk_flow.launch
      • node_name [default: lk_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • quality_level [default: 0.01] — Parameter characterizing the minimal acceptance quality of image corners.
      • min_distance [default: 10] — Minimum possible Euclidean distance between the returned corners.
      • block_size [default: 3] — Size of an average block for computing a derivative covariation matrix over each pixel neighborhood.
      • harris_k [default: 0.04] — Free parameter of the Harris detector
  • launch/morphology.launch
      • node_name [default: morphology]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • morph_operator [default: 0] — Morphology Operation Methods 0: Opening, 1: Closing, 2: Gradient, 3: Top Hat, 4: Black Hat
      • morph_element [default: 0] — Type of the kernel 0: Rect, 1: Cross, 2: Ellipse
      • morph_size [default: 0] — Size of the kernel
  • launch/people_detect.launch
      • node_name [default: people_detect]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hit_threshold [default: 0] — Threshold for the distance between features and SVM classifying plane
      • win_stride [default: 8] — Window stride. It must be a multiple of block stride.
      • padding [default: 32] — Mock parameter to keep the CPU interface compatibility. It must be (0,0).
      • scale0 [default: 1.05] — Coefficient of the detection window increase.
      • group_threshold [default: 2] — Coefficient to regulate the similarity threshold. When detected, some objects can be covered by many rectangles. 0 means not to perform grouping.
  • launch/phase_corr.launch
      • node_name [default: phase_corr]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/pyramids.launch
      • node_name [default: pyramids]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show pyramids image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • pyramids_type [default: 0] — Specify pyramids Up/Down. 0: Up size(zoom in), 1: Down size(zoom out).
      • num_of_pyramids [default: 0] — Number of Up/Down sampling.
  • launch/rgb_color_filter.launch
      • node_name [default: rgb_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • r_limit_max [default: 250] — The maximum allowed field value Red
      • r_limit_min [default: 50] — The minimum allowed field value Red
      • g_limit_max [default: 200] — The maximum allowed field value Green
      • g_limit_min [default: 100] — The minimum allowed field value Green
      • b_limit_max [default: 150] — The maximum allowed field value Blue
      • b_limit_min [default: 20] — The minimum allowed field value Blue
  • launch/segment_objects.launch
      • node_name [default: segment_objects]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/simple_flow.launch
      • node_name [default: simple_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • scale [default: 8] — Specify the scale factor to calculate optical flow.
  • launch/smoothing.launch
      • node_name [default: smoothing]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • filter_type [default: 0] — Smoothing Filter Methods. 0:Homogeneous blur, 1:Gaussian blur, 2:Median blur, 3:Bilateral Filter.
      • kernel_size [default: 7] — Size of the kernel (only one because we use a square window). Must be odd.
  • launch/threshold.launch
      • node_name [default: threshold]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • apply_otsu [default: false] — Decide applying Otsu's algotirhm threshold. If this value is true, threshold value will be ignored
      • threshold_type [default: 0] — Specify threshold types. 0: Binary threshold, 1: Binary inverted threshold, 2: Threshold truncated, 3: Threshold to zero, 4: Threshold to zero inverted
      • threshold [default: 150] — threshold value
      • max_binary [default: 255] — maximum value to use with the 0: Binary thresholding and 1: Binary inverted thresholding types.
  • launch/watershed_segmentation.launch
      • node_name [default: watershed_segmentation]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers

Plugins

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opencv_apps package from opencv_apps repo

opencv_apps

ROS Distro
lunar

Package Summary

Tags No category tags.
Version 2.0.3
License BSD
Build type CATKIN
Use RECOMMENDED

Repository Summary

Checkout URI https://github.com/ros-perception/opencv_apps.git
VCS Type git
VCS Version indigo
Last Updated 2025-05-22
Dev Status DEVELOPED
Released RELEASED
Tags No category tags.
Contributing Help Wanted (-)
Good First Issues (-)
Pull Requests to Review (-)

Package Description

Additional Links

No additional links.

Maintainers

  • Kei Okada

Authors

  • Kei Okada

opencv_apps

Travis CI Build Status

Indigo Trusty Build Status

Kinetic Xenial Build Status

Melodic Bionic Build Status

Documentation http://wiki.ros.org/opencv_apps

CHANGELOG

Changelog for package opencv_apps

2.0.3 (2025-05-22)

  • [lk_flow] Keep matching information for sparse optical flow (#149)
  • use bgr8 for output visualization (#145)
  • add ROS-O test (#147)
  • Suppress cmake warning (#146)
  • [TEST] Fix catkin_lint version 1.6.18 to avoid [cmake_minimum_required]{.title-ref} error (#143)
  • Add sync_.reset/async_.reset to destructor in face_recognition (#139)
  • fix github actions (#140)
  • fix missing .git directory (#136)
  • Add histogram equalization default and clahe (#126)
  • check all output of test/test-pyramids.test (#127)
  • tests: properly remap camera_info (#125)
  • add Morphology Transformations nodelet (#122)
  • add test to check when adding two images, whcih has different size. (#123)
  • contour_moments_nodelet: don't publish empty image (#124)
  • Add Lab color filter (#114)
  • add test to check on debain_unstable (#121)
  • Remove timestamp from face_data.tar.gz (#117)
  • use snapshot of rosdep list (#120)
  • fix travis, speed up GA tests (#116)
  • add .github/workflows (#115)
  • Contributors: Aoi Nakane, Jochen Sprickerhof, Kei Okada, Martin Günther, Naoto Tsukamoto, Shingo Kitagawa, Yuki Furuta, Iori Yanokura, Ivan Oliveira Tarifa

2.0.2 (2020-08-19)

  • .travis.yml: add noetic test (#108)
    • support oepncv4 for face detection launch/test files
    • convert img_gray every loop, this fixes [ERROR] [1597757072.115502734]: Image processing error: Matrix operand is an empty matrix. checkOperandsExist ../modules/core/src/matrix_expressions.cpp 23 errors
    • check CV_VERSION_VERSION > 4
    • add g++ static to package.xml
    • use python3 for noetic
    • .travis.yml : add CHECK_PYTHON3_COMPILE
    • .travis.yml: add noetic test
  • fix travis (#106)
    • add more package to CATKIN_DEPENDS
    • add image_view to run_depends
  • add hot fix for hydro test (#98)
    • add doublequote arount $TEST
    • add hot fix for hydro test
  • Improved variable names and comments (#95)
    • Improved variable names and comments: The comments and variable names were the opposite of what was functionally happening in the code. No functional change to this commit, just better readability and maintainability.
  • setup EoL repository (#96)
  • Contributors: Gus Crowards, Kei Okada

2.0.1 (2019-04-22)

  • support catkin_lint and clang-format tests in travis.yml (#93)
    • override is not supported gcc4.6 (12.04), remove this fix and add NOLINT
    • clang-tidy code need c++11
    • fix code by run-clang-tidy -fix
    • fix format by clang-format
    • fix CMakeLists.txt and package.xml for catkin_lint
    • support catkin_lint and clang-format tests
  • add queue_size parameter to all nodes, see #83 (#92)
    • add queue_size arg to launch files
    • sometimes simple_example_test fails with 'average rate (36.121Hz) exceeded maximum (35.000Hz)'

File truncated at 100 lines see the full file

Launch files

  • launch/adding_images.launch
      • node_name [default: adding_images]
      • image1 [default: image1] — The image topic. Should be remapped to the name of the real image topic.
      • image2 [default: image2] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • alpha [default: 0.5] — Weight of the first array elements
      • gamma [default: 0] — Scalar added to each sum
      • approximate_sync [default: false] — Flag of approximate_sync. If this value is false, image1 and image2 synchronize exact time.
  • launch/camshift.launch
      • node_name [default: camshift]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram [default: [0.0, 255.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]] — Histogram of tracked color object
      • vmin [default: 10] — Min threshould of lightness.
      • vmax [default: 230] — Max threshould of lightness.
      • smin [default: 60] — Min value of saturation.
  • launch/contour_moments.launch
      • node_name [default: contour_moments]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 100] — Canny Edge low Threshold
  • launch/convex_hull.launch
      • node_name [default: convex_hull]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/corner_harris.launch
      • node_name [default: corner_harris]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 200] — Threshold value of a circle around corners's norm
  • launch/discrete_fourier_transform.launch
      • node_name [default: discrete_fourier_transform]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 1] — Specigy queue_size of input image subscribers
  • launch/edge_detection.launch
      • node_name [default: edge_detection]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • edge_type [default: 0] — Specify edge dtection methods. 0: Sobel Derivatives, 1: Lapalace Operator, 2, Canny Edge Detector.
      • canny_threshold1 [default: 100] — Specify second canny threashold value.
      • canny_threshold2 [default: 200] — Specity first canny threashold value.
      • apertureSize [default: 3] — Aperture size for the Sobel() operator.
      • apply_blur_pre [default: true] — Flag, applying Blur() to input image
      • postBlurSize [default: 13] — Aperture size for the Blur() to input image()
      • postBlurSigma [default: 3.2] — Sigma for the GaussianBlur() to input image.
      • apply_blur_post [default: false] — Flag, applying GaussinaBlur() to output(edge) image
      • L2gradient [default: false] — Flag, L2Gradient
  • launch/equalize_histogram.launch
      • node_name [default: equalize_histogram]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram_equalization_type [default: 0] — Specify histogram equaliztion methods. 0: Default, 1: Clahe
      • clahe_clip_limit [default: 255.0] — The maximum allowed field value Clip Limit
      • clahe_tile_size_x [default: 300] — The maximum allowed field value Threshold X Limit
      • clahe_tile_size_y [default: 300] — The maximum allowed field value Threshold Y Limit
      • use_opencl [default: true] — Enable or disable OpenCL
  • launch/face_detection.launch
      • node_name [default: face_detection]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: $(arg use_opencv3)]
      • use_opencv4 [default: false]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
  • launch/face_recognition.launch
      • launch_face_detection [default: true]
      • launch_trainer [default: true]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: false]
      • use_opencv4 [default: false]
      • debug_view [default: true]
      • queue_size [default: 100] — Specigy queue_size of input image subscribers
      • image [default: image]
      • data_dir [default: ~/.ros/opencv_apps/face_data]
  • launch/fback_flow.launch
      • node_name [default: fback_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/find_contours.launch
      • node_name [default: find_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 10] — Lower threshold for the internal Canny edge detector.
  • launch/general_contours.launch
      • node_name [default: general_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/goodfeature_track.launch
      • node_name [default: goodfeature_track]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • max_corners [default: 23] — Maximum number of corners to return. If there are more corners than are found, the strongest of them is returned.
  • launch/hls_color_filter.launch
      • node_name [default: hls_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • l_limit_max [default: 255] — The maximum allowed field value Luminance
      • l_limit_min [default: 50] — The minimum allowed field value Luminance
  • launch/hough_circles.launch
      • node_name [default: hough_circles]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_threshold [default: 200] — Upper threshold for the internal Canny edge detector.
      • accumulator_threshold [default: 50] — Threshold for center detection.
      • gaussian_blur_size [default: 9] — The size of gaussian blur (should be odd number)
      • gaussian_sigma_x [default: 2] — Sigma x of gaussian kernel
      • gaussian_sigma_y [default: 2] — Sigma y of gaussian kernel
      • dp [default: 2] — The inverse ratio of resolution.
      • min_circle_radius [default: 0] — The minimum size of the circle, If unknown, put zero as default
      • max_circle_radius [default: 0] — The maximum size of the circle, If unknown, put zero as default.
  • launch/hough_lines.launch
      • node_name [default: hough_lines]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hough_type [default: 0] — Apecify Hough transform type, 0 for Standard Hough Detection and 1 for Probabilistic Hough Detection
      • threshold [default: 150] — Threshould value for hough line detection
      • rho [default: 1.0] — The resolution of the parameter r in pixels.
      • theta [default: 1.0] — The resolution of the parameter theta in radians.
      • minLineLength [default: 30] — The minimum number of points that can form a line.
      • maxLineGrap [default: 10] — The maximum gap between two points to be considered in the same line.
  • launch/hsv_color_filter.launch
      • node_name [default: hsv_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • v_limit_max [default: 255] — The maximum allowed field value Value
      • v_limit_min [default: 50] — The minimum allowed field value Value
  • launch/lab_color_filter.launch
      • node_name [default: lab_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • l_limit_max [default: 255] — The maximum allowed field value L*
      • l_limit_min [default: 50] — The minimum allowed field value L*
      • a_limit_max [default: 250] — The maximum allowed field value a*
      • a_limit_min [default: 0] — The minimum allowed field value a*
      • b_limit_max [default: 255] — The maximum allowed field value b*
      • b_limit_min [default: 150] — The minimum allowed field value b*
  • launch/lk_flow.launch
      • node_name [default: lk_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • quality_level [default: 0.01] — Parameter characterizing the minimal acceptance quality of image corners.
      • min_distance [default: 10] — Minimum possible Euclidean distance between the returned corners.
      • block_size [default: 3] — Size of an average block for computing a derivative covariation matrix over each pixel neighborhood.
      • harris_k [default: 0.04] — Free parameter of the Harris detector
  • launch/morphology.launch
      • node_name [default: morphology]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • morph_operator [default: 0] — Morphology Operation Methods 0: Opening, 1: Closing, 2: Gradient, 3: Top Hat, 4: Black Hat
      • morph_element [default: 0] — Type of the kernel 0: Rect, 1: Cross, 2: Ellipse
      • morph_size [default: 0] — Size of the kernel
  • launch/people_detect.launch
      • node_name [default: people_detect]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hit_threshold [default: 0] — Threshold for the distance between features and SVM classifying plane
      • win_stride [default: 8] — Window stride. It must be a multiple of block stride.
      • padding [default: 32] — Mock parameter to keep the CPU interface compatibility. It must be (0,0).
      • scale0 [default: 1.05] — Coefficient of the detection window increase.
      • group_threshold [default: 2] — Coefficient to regulate the similarity threshold. When detected, some objects can be covered by many rectangles. 0 means not to perform grouping.
  • launch/phase_corr.launch
      • node_name [default: phase_corr]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/pyramids.launch
      • node_name [default: pyramids]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show pyramids image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • pyramids_type [default: 0] — Specify pyramids Up/Down. 0: Up size(zoom in), 1: Down size(zoom out).
      • num_of_pyramids [default: 0] — Number of Up/Down sampling.
  • launch/rgb_color_filter.launch
      • node_name [default: rgb_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • r_limit_max [default: 250] — The maximum allowed field value Red
      • r_limit_min [default: 50] — The minimum allowed field value Red
      • g_limit_max [default: 200] — The maximum allowed field value Green
      • g_limit_min [default: 100] — The minimum allowed field value Green
      • b_limit_max [default: 150] — The maximum allowed field value Blue
      • b_limit_min [default: 20] — The minimum allowed field value Blue
  • launch/segment_objects.launch
      • node_name [default: segment_objects]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/simple_flow.launch
      • node_name [default: simple_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • scale [default: 8] — Specify the scale factor to calculate optical flow.
  • launch/smoothing.launch
      • node_name [default: smoothing]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • filter_type [default: 0] — Smoothing Filter Methods. 0:Homogeneous blur, 1:Gaussian blur, 2:Median blur, 3:Bilateral Filter.
      • kernel_size [default: 7] — Size of the kernel (only one because we use a square window). Must be odd.
  • launch/threshold.launch
      • node_name [default: threshold]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • apply_otsu [default: false] — Decide applying Otsu's algotirhm threshold. If this value is true, threshold value will be ignored
      • threshold_type [default: 0] — Specify threshold types. 0: Binary threshold, 1: Binary inverted threshold, 2: Threshold truncated, 3: Threshold to zero, 4: Threshold to zero inverted
      • threshold [default: 150] — threshold value
      • max_binary [default: 255] — maximum value to use with the 0: Binary thresholding and 1: Binary inverted thresholding types.
  • launch/watershed_segmentation.launch
      • node_name [default: watershed_segmentation]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers

Plugins

Recent questions tagged opencv_apps at Robotics Stack Exchange

Package symbol

opencv_apps package from opencv_apps repo

opencv_apps

ROS Distro
kinetic

Package Summary

Tags No category tags.
Version 2.0.3
License BSD
Build type CATKIN
Use RECOMMENDED

Repository Summary

Checkout URI https://github.com/ros-perception/opencv_apps.git
VCS Type git
VCS Version indigo
Last Updated 2025-05-22
Dev Status DEVELOPED
Released RELEASED
Tags No category tags.
Contributing Help Wanted (-)
Good First Issues (-)
Pull Requests to Review (-)

Package Description

Additional Links

No additional links.

Maintainers

  • Kei Okada

Authors

  • Kei Okada

opencv_apps

Travis CI Build Status

Indigo Trusty Build Status

Kinetic Xenial Build Status

Melodic Bionic Build Status

Documentation http://wiki.ros.org/opencv_apps

CHANGELOG

Changelog for package opencv_apps

2.0.3 (2025-05-22)

  • [lk_flow] Keep matching information for sparse optical flow (#149)
  • use bgr8 for output visualization (#145)
  • add ROS-O test (#147)
  • Suppress cmake warning (#146)
  • [TEST] Fix catkin_lint version 1.6.18 to avoid [cmake_minimum_required]{.title-ref} error (#143)
  • Add sync_.reset/async_.reset to destructor in face_recognition (#139)
  • fix github actions (#140)
  • fix missing .git directory (#136)
  • Add histogram equalization default and clahe (#126)
  • check all output of test/test-pyramids.test (#127)
  • tests: properly remap camera_info (#125)
  • add Morphology Transformations nodelet (#122)
  • add test to check when adding two images, whcih has different size. (#123)
  • contour_moments_nodelet: don't publish empty image (#124)
  • Add Lab color filter (#114)
  • add test to check on debain_unstable (#121)
  • Remove timestamp from face_data.tar.gz (#117)
  • use snapshot of rosdep list (#120)
  • fix travis, speed up GA tests (#116)
  • add .github/workflows (#115)
  • Contributors: Aoi Nakane, Jochen Sprickerhof, Kei Okada, Martin Günther, Naoto Tsukamoto, Shingo Kitagawa, Yuki Furuta, Iori Yanokura, Ivan Oliveira Tarifa

2.0.2 (2020-08-19)

  • .travis.yml: add noetic test (#108)
    • support oepncv4 for face detection launch/test files
    • convert img_gray every loop, this fixes [ERROR] [1597757072.115502734]: Image processing error: Matrix operand is an empty matrix. checkOperandsExist ../modules/core/src/matrix_expressions.cpp 23 errors
    • check CV_VERSION_VERSION > 4
    • add g++ static to package.xml
    • use python3 for noetic
    • .travis.yml : add CHECK_PYTHON3_COMPILE
    • .travis.yml: add noetic test
  • fix travis (#106)
    • add more package to CATKIN_DEPENDS
    • add image_view to run_depends
  • add hot fix for hydro test (#98)
    • add doublequote arount $TEST
    • add hot fix for hydro test
  • Improved variable names and comments (#95)
    • Improved variable names and comments: The comments and variable names were the opposite of what was functionally happening in the code. No functional change to this commit, just better readability and maintainability.
  • setup EoL repository (#96)
  • Contributors: Gus Crowards, Kei Okada

2.0.1 (2019-04-22)

  • support catkin_lint and clang-format tests in travis.yml (#93)
    • override is not supported gcc4.6 (12.04), remove this fix and add NOLINT
    • clang-tidy code need c++11
    • fix code by run-clang-tidy -fix
    • fix format by clang-format
    • fix CMakeLists.txt and package.xml for catkin_lint
    • support catkin_lint and clang-format tests
  • add queue_size parameter to all nodes, see #83 (#92)
    • add queue_size arg to launch files
    • sometimes simple_example_test fails with 'average rate (36.121Hz) exceeded maximum (35.000Hz)'

File truncated at 100 lines see the full file

Launch files

  • launch/adding_images.launch
      • node_name [default: adding_images]
      • image1 [default: image1] — The image topic. Should be remapped to the name of the real image topic.
      • image2 [default: image2] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • alpha [default: 0.5] — Weight of the first array elements
      • gamma [default: 0] — Scalar added to each sum
      • approximate_sync [default: false] — Flag of approximate_sync. If this value is false, image1 and image2 synchronize exact time.
  • launch/camshift.launch
      • node_name [default: camshift]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram [default: [0.0, 255.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]] — Histogram of tracked color object
      • vmin [default: 10] — Min threshould of lightness.
      • vmax [default: 230] — Max threshould of lightness.
      • smin [default: 60] — Min value of saturation.
  • launch/contour_moments.launch
      • node_name [default: contour_moments]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 100] — Canny Edge low Threshold
  • launch/convex_hull.launch
      • node_name [default: convex_hull]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/corner_harris.launch
      • node_name [default: corner_harris]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 200] — Threshold value of a circle around corners's norm
  • launch/discrete_fourier_transform.launch
      • node_name [default: discrete_fourier_transform]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 1] — Specigy queue_size of input image subscribers
  • launch/edge_detection.launch
      • node_name [default: edge_detection]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • edge_type [default: 0] — Specify edge dtection methods. 0: Sobel Derivatives, 1: Lapalace Operator, 2, Canny Edge Detector.
      • canny_threshold1 [default: 100] — Specify second canny threashold value.
      • canny_threshold2 [default: 200] — Specity first canny threashold value.
      • apertureSize [default: 3] — Aperture size for the Sobel() operator.
      • apply_blur_pre [default: true] — Flag, applying Blur() to input image
      • postBlurSize [default: 13] — Aperture size for the Blur() to input image()
      • postBlurSigma [default: 3.2] — Sigma for the GaussianBlur() to input image.
      • apply_blur_post [default: false] — Flag, applying GaussinaBlur() to output(edge) image
      • L2gradient [default: false] — Flag, L2Gradient
  • launch/equalize_histogram.launch
      • node_name [default: equalize_histogram]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram_equalization_type [default: 0] — Specify histogram equaliztion methods. 0: Default, 1: Clahe
      • clahe_clip_limit [default: 255.0] — The maximum allowed field value Clip Limit
      • clahe_tile_size_x [default: 300] — The maximum allowed field value Threshold X Limit
      • clahe_tile_size_y [default: 300] — The maximum allowed field value Threshold Y Limit
      • use_opencl [default: true] — Enable or disable OpenCL
  • launch/face_detection.launch
      • node_name [default: face_detection]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: $(arg use_opencv3)]
      • use_opencv4 [default: false]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
  • launch/face_recognition.launch
      • launch_face_detection [default: true]
      • launch_trainer [default: true]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: false]
      • use_opencv4 [default: false]
      • debug_view [default: true]
      • queue_size [default: 100] — Specigy queue_size of input image subscribers
      • image [default: image]
      • data_dir [default: ~/.ros/opencv_apps/face_data]
  • launch/fback_flow.launch
      • node_name [default: fback_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/find_contours.launch
      • node_name [default: find_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 10] — Lower threshold for the internal Canny edge detector.
  • launch/general_contours.launch
      • node_name [default: general_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/goodfeature_track.launch
      • node_name [default: goodfeature_track]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • max_corners [default: 23] — Maximum number of corners to return. If there are more corners than are found, the strongest of them is returned.
  • launch/hls_color_filter.launch
      • node_name [default: hls_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • l_limit_max [default: 255] — The maximum allowed field value Luminance
      • l_limit_min [default: 50] — The minimum allowed field value Luminance
  • launch/hough_circles.launch
      • node_name [default: hough_circles]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_threshold [default: 200] — Upper threshold for the internal Canny edge detector.
      • accumulator_threshold [default: 50] — Threshold for center detection.
      • gaussian_blur_size [default: 9] — The size of gaussian blur (should be odd number)
      • gaussian_sigma_x [default: 2] — Sigma x of gaussian kernel
      • gaussian_sigma_y [default: 2] — Sigma y of gaussian kernel
      • dp [default: 2] — The inverse ratio of resolution.
      • min_circle_radius [default: 0] — The minimum size of the circle, If unknown, put zero as default
      • max_circle_radius [default: 0] — The maximum size of the circle, If unknown, put zero as default.
  • launch/hough_lines.launch
      • node_name [default: hough_lines]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hough_type [default: 0] — Apecify Hough transform type, 0 for Standard Hough Detection and 1 for Probabilistic Hough Detection
      • threshold [default: 150] — Threshould value for hough line detection
      • rho [default: 1.0] — The resolution of the parameter r in pixels.
      • theta [default: 1.0] — The resolution of the parameter theta in radians.
      • minLineLength [default: 30] — The minimum number of points that can form a line.
      • maxLineGrap [default: 10] — The maximum gap between two points to be considered in the same line.
  • launch/hsv_color_filter.launch
      • node_name [default: hsv_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • v_limit_max [default: 255] — The maximum allowed field value Value
      • v_limit_min [default: 50] — The minimum allowed field value Value
  • launch/lab_color_filter.launch
      • node_name [default: lab_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • l_limit_max [default: 255] — The maximum allowed field value L*
      • l_limit_min [default: 50] — The minimum allowed field value L*
      • a_limit_max [default: 250] — The maximum allowed field value a*
      • a_limit_min [default: 0] — The minimum allowed field value a*
      • b_limit_max [default: 255] — The maximum allowed field value b*
      • b_limit_min [default: 150] — The minimum allowed field value b*
  • launch/lk_flow.launch
      • node_name [default: lk_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • quality_level [default: 0.01] — Parameter characterizing the minimal acceptance quality of image corners.
      • min_distance [default: 10] — Minimum possible Euclidean distance between the returned corners.
      • block_size [default: 3] — Size of an average block for computing a derivative covariation matrix over each pixel neighborhood.
      • harris_k [default: 0.04] — Free parameter of the Harris detector
  • launch/morphology.launch
      • node_name [default: morphology]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • morph_operator [default: 0] — Morphology Operation Methods 0: Opening, 1: Closing, 2: Gradient, 3: Top Hat, 4: Black Hat
      • morph_element [default: 0] — Type of the kernel 0: Rect, 1: Cross, 2: Ellipse
      • morph_size [default: 0] — Size of the kernel
  • launch/people_detect.launch
      • node_name [default: people_detect]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hit_threshold [default: 0] — Threshold for the distance between features and SVM classifying plane
      • win_stride [default: 8] — Window stride. It must be a multiple of block stride.
      • padding [default: 32] — Mock parameter to keep the CPU interface compatibility. It must be (0,0).
      • scale0 [default: 1.05] — Coefficient of the detection window increase.
      • group_threshold [default: 2] — Coefficient to regulate the similarity threshold. When detected, some objects can be covered by many rectangles. 0 means not to perform grouping.
  • launch/phase_corr.launch
      • node_name [default: phase_corr]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/pyramids.launch
      • node_name [default: pyramids]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show pyramids image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • pyramids_type [default: 0] — Specify pyramids Up/Down. 0: Up size(zoom in), 1: Down size(zoom out).
      • num_of_pyramids [default: 0] — Number of Up/Down sampling.
  • launch/rgb_color_filter.launch
      • node_name [default: rgb_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • r_limit_max [default: 250] — The maximum allowed field value Red
      • r_limit_min [default: 50] — The minimum allowed field value Red
      • g_limit_max [default: 200] — The maximum allowed field value Green
      • g_limit_min [default: 100] — The minimum allowed field value Green
      • b_limit_max [default: 150] — The maximum allowed field value Blue
      • b_limit_min [default: 20] — The minimum allowed field value Blue
  • launch/segment_objects.launch
      • node_name [default: segment_objects]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/simple_flow.launch
      • node_name [default: simple_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • scale [default: 8] — Specify the scale factor to calculate optical flow.
  • launch/smoothing.launch
      • node_name [default: smoothing]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • filter_type [default: 0] — Smoothing Filter Methods. 0:Homogeneous blur, 1:Gaussian blur, 2:Median blur, 3:Bilateral Filter.
      • kernel_size [default: 7] — Size of the kernel (only one because we use a square window). Must be odd.
  • launch/threshold.launch
      • node_name [default: threshold]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • apply_otsu [default: false] — Decide applying Otsu's algotirhm threshold. If this value is true, threshold value will be ignored
      • threshold_type [default: 0] — Specify threshold types. 0: Binary threshold, 1: Binary inverted threshold, 2: Threshold truncated, 3: Threshold to zero, 4: Threshold to zero inverted
      • threshold [default: 150] — threshold value
      • max_binary [default: 255] — maximum value to use with the 0: Binary thresholding and 1: Binary inverted thresholding types.
  • launch/watershed_segmentation.launch
      • node_name [default: watershed_segmentation]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers

Plugins

Recent questions tagged opencv_apps at Robotics Stack Exchange

Package symbol

opencv_apps package from opencv_apps repo

opencv_apps

ROS Distro
melodic

Package Summary

Tags No category tags.
Version 2.0.3
License BSD
Build type CATKIN
Use RECOMMENDED

Repository Summary

Checkout URI https://github.com/ros-perception/opencv_apps.git
VCS Type git
VCS Version indigo
Last Updated 2025-05-22
Dev Status DEVELOPED
Released RELEASED
Tags No category tags.
Contributing Help Wanted (-)
Good First Issues (-)
Pull Requests to Review (-)

Package Description

Additional Links

No additional links.

Maintainers

  • Kei Okada

Authors

  • Kei Okada

opencv_apps

Travis CI Build Status

Indigo Trusty Build Status

Kinetic Xenial Build Status

Melodic Bionic Build Status

Documentation http://wiki.ros.org/opencv_apps

CHANGELOG

Changelog for package opencv_apps

2.0.3 (2025-05-22)

  • [lk_flow] Keep matching information for sparse optical flow (#149)
  • use bgr8 for output visualization (#145)
  • add ROS-O test (#147)
  • Suppress cmake warning (#146)
  • [TEST] Fix catkin_lint version 1.6.18 to avoid [cmake_minimum_required]{.title-ref} error (#143)
  • Add sync_.reset/async_.reset to destructor in face_recognition (#139)
  • fix github actions (#140)
  • fix missing .git directory (#136)
  • Add histogram equalization default and clahe (#126)
  • check all output of test/test-pyramids.test (#127)
  • tests: properly remap camera_info (#125)
  • add Morphology Transformations nodelet (#122)
  • add test to check when adding two images, whcih has different size. (#123)
  • contour_moments_nodelet: don't publish empty image (#124)
  • Add Lab color filter (#114)
  • add test to check on debain_unstable (#121)
  • Remove timestamp from face_data.tar.gz (#117)
  • use snapshot of rosdep list (#120)
  • fix travis, speed up GA tests (#116)
  • add .github/workflows (#115)
  • Contributors: Aoi Nakane, Jochen Sprickerhof, Kei Okada, Martin Günther, Naoto Tsukamoto, Shingo Kitagawa, Yuki Furuta, Iori Yanokura, Ivan Oliveira Tarifa

2.0.2 (2020-08-19)

  • .travis.yml: add noetic test (#108)
    • support oepncv4 for face detection launch/test files
    • convert img_gray every loop, this fixes [ERROR] [1597757072.115502734]: Image processing error: Matrix operand is an empty matrix. checkOperandsExist ../modules/core/src/matrix_expressions.cpp 23 errors
    • check CV_VERSION_VERSION > 4
    • add g++ static to package.xml
    • use python3 for noetic
    • .travis.yml : add CHECK_PYTHON3_COMPILE
    • .travis.yml: add noetic test
  • fix travis (#106)
    • add more package to CATKIN_DEPENDS
    • add image_view to run_depends
  • add hot fix for hydro test (#98)
    • add doublequote arount $TEST
    • add hot fix for hydro test
  • Improved variable names and comments (#95)
    • Improved variable names and comments: The comments and variable names were the opposite of what was functionally happening in the code. No functional change to this commit, just better readability and maintainability.
  • setup EoL repository (#96)
  • Contributors: Gus Crowards, Kei Okada

2.0.1 (2019-04-22)

  • support catkin_lint and clang-format tests in travis.yml (#93)
    • override is not supported gcc4.6 (12.04), remove this fix and add NOLINT
    • clang-tidy code need c++11
    • fix code by run-clang-tidy -fix
    • fix format by clang-format
    • fix CMakeLists.txt and package.xml for catkin_lint
    • support catkin_lint and clang-format tests
  • add queue_size parameter to all nodes, see #83 (#92)
    • add queue_size arg to launch files
    • sometimes simple_example_test fails with 'average rate (36.121Hz) exceeded maximum (35.000Hz)'

File truncated at 100 lines see the full file

Launch files

  • launch/adding_images.launch
      • node_name [default: adding_images]
      • image1 [default: image1] — The image topic. Should be remapped to the name of the real image topic.
      • image2 [default: image2] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • alpha [default: 0.5] — Weight of the first array elements
      • gamma [default: 0] — Scalar added to each sum
      • approximate_sync [default: false] — Flag of approximate_sync. If this value is false, image1 and image2 synchronize exact time.
  • launch/camshift.launch
      • node_name [default: camshift]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram [default: [0.0, 255.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]] — Histogram of tracked color object
      • vmin [default: 10] — Min threshould of lightness.
      • vmax [default: 230] — Max threshould of lightness.
      • smin [default: 60] — Min value of saturation.
  • launch/contour_moments.launch
      • node_name [default: contour_moments]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 100] — Canny Edge low Threshold
  • launch/convex_hull.launch
      • node_name [default: convex_hull]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/corner_harris.launch
      • node_name [default: corner_harris]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 200] — Threshold value of a circle around corners's norm
  • launch/discrete_fourier_transform.launch
      • node_name [default: discrete_fourier_transform]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 1] — Specigy queue_size of input image subscribers
  • launch/edge_detection.launch
      • node_name [default: edge_detection]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • edge_type [default: 0] — Specify edge dtection methods. 0: Sobel Derivatives, 1: Lapalace Operator, 2, Canny Edge Detector.
      • canny_threshold1 [default: 100] — Specify second canny threashold value.
      • canny_threshold2 [default: 200] — Specity first canny threashold value.
      • apertureSize [default: 3] — Aperture size for the Sobel() operator.
      • apply_blur_pre [default: true] — Flag, applying Blur() to input image
      • postBlurSize [default: 13] — Aperture size for the Blur() to input image()
      • postBlurSigma [default: 3.2] — Sigma for the GaussianBlur() to input image.
      • apply_blur_post [default: false] — Flag, applying GaussinaBlur() to output(edge) image
      • L2gradient [default: false] — Flag, L2Gradient
  • launch/equalize_histogram.launch
      • node_name [default: equalize_histogram]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram_equalization_type [default: 0] — Specify histogram equaliztion methods. 0: Default, 1: Clahe
      • clahe_clip_limit [default: 255.0] — The maximum allowed field value Clip Limit
      • clahe_tile_size_x [default: 300] — The maximum allowed field value Threshold X Limit
      • clahe_tile_size_y [default: 300] — The maximum allowed field value Threshold Y Limit
      • use_opencl [default: true] — Enable or disable OpenCL
  • launch/face_detection.launch
      • node_name [default: face_detection]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: $(arg use_opencv3)]
      • use_opencv4 [default: false]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
  • launch/face_recognition.launch
      • launch_face_detection [default: true]
      • launch_trainer [default: true]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: false]
      • use_opencv4 [default: false]
      • debug_view [default: true]
      • queue_size [default: 100] — Specigy queue_size of input image subscribers
      • image [default: image]
      • data_dir [default: ~/.ros/opencv_apps/face_data]
  • launch/fback_flow.launch
      • node_name [default: fback_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/find_contours.launch
      • node_name [default: find_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 10] — Lower threshold for the internal Canny edge detector.
  • launch/general_contours.launch
      • node_name [default: general_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/goodfeature_track.launch
      • node_name [default: goodfeature_track]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • max_corners [default: 23] — Maximum number of corners to return. If there are more corners than are found, the strongest of them is returned.
  • launch/hls_color_filter.launch
      • node_name [default: hls_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • l_limit_max [default: 255] — The maximum allowed field value Luminance
      • l_limit_min [default: 50] — The minimum allowed field value Luminance
  • launch/hough_circles.launch
      • node_name [default: hough_circles]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_threshold [default: 200] — Upper threshold for the internal Canny edge detector.
      • accumulator_threshold [default: 50] — Threshold for center detection.
      • gaussian_blur_size [default: 9] — The size of gaussian blur (should be odd number)
      • gaussian_sigma_x [default: 2] — Sigma x of gaussian kernel
      • gaussian_sigma_y [default: 2] — Sigma y of gaussian kernel
      • dp [default: 2] — The inverse ratio of resolution.
      • min_circle_radius [default: 0] — The minimum size of the circle, If unknown, put zero as default
      • max_circle_radius [default: 0] — The maximum size of the circle, If unknown, put zero as default.
  • launch/hough_lines.launch
      • node_name [default: hough_lines]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hough_type [default: 0] — Apecify Hough transform type, 0 for Standard Hough Detection and 1 for Probabilistic Hough Detection
      • threshold [default: 150] — Threshould value for hough line detection
      • rho [default: 1.0] — The resolution of the parameter r in pixels.
      • theta [default: 1.0] — The resolution of the parameter theta in radians.
      • minLineLength [default: 30] — The minimum number of points that can form a line.
      • maxLineGrap [default: 10] — The maximum gap between two points to be considered in the same line.
  • launch/hsv_color_filter.launch
      • node_name [default: hsv_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • v_limit_max [default: 255] — The maximum allowed field value Value
      • v_limit_min [default: 50] — The minimum allowed field value Value
  • launch/lab_color_filter.launch
      • node_name [default: lab_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • l_limit_max [default: 255] — The maximum allowed field value L*
      • l_limit_min [default: 50] — The minimum allowed field value L*
      • a_limit_max [default: 250] — The maximum allowed field value a*
      • a_limit_min [default: 0] — The minimum allowed field value a*
      • b_limit_max [default: 255] — The maximum allowed field value b*
      • b_limit_min [default: 150] — The minimum allowed field value b*
  • launch/lk_flow.launch
      • node_name [default: lk_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • quality_level [default: 0.01] — Parameter characterizing the minimal acceptance quality of image corners.
      • min_distance [default: 10] — Minimum possible Euclidean distance between the returned corners.
      • block_size [default: 3] — Size of an average block for computing a derivative covariation matrix over each pixel neighborhood.
      • harris_k [default: 0.04] — Free parameter of the Harris detector
  • launch/morphology.launch
      • node_name [default: morphology]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • morph_operator [default: 0] — Morphology Operation Methods 0: Opening, 1: Closing, 2: Gradient, 3: Top Hat, 4: Black Hat
      • morph_element [default: 0] — Type of the kernel 0: Rect, 1: Cross, 2: Ellipse
      • morph_size [default: 0] — Size of the kernel
  • launch/people_detect.launch
      • node_name [default: people_detect]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hit_threshold [default: 0] — Threshold for the distance between features and SVM classifying plane
      • win_stride [default: 8] — Window stride. It must be a multiple of block stride.
      • padding [default: 32] — Mock parameter to keep the CPU interface compatibility. It must be (0,0).
      • scale0 [default: 1.05] — Coefficient of the detection window increase.
      • group_threshold [default: 2] — Coefficient to regulate the similarity threshold. When detected, some objects can be covered by many rectangles. 0 means not to perform grouping.
  • launch/phase_corr.launch
      • node_name [default: phase_corr]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/pyramids.launch
      • node_name [default: pyramids]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show pyramids image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • pyramids_type [default: 0] — Specify pyramids Up/Down. 0: Up size(zoom in), 1: Down size(zoom out).
      • num_of_pyramids [default: 0] — Number of Up/Down sampling.
  • launch/rgb_color_filter.launch
      • node_name [default: rgb_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • r_limit_max [default: 250] — The maximum allowed field value Red
      • r_limit_min [default: 50] — The minimum allowed field value Red
      • g_limit_max [default: 200] — The maximum allowed field value Green
      • g_limit_min [default: 100] — The minimum allowed field value Green
      • b_limit_max [default: 150] — The maximum allowed field value Blue
      • b_limit_min [default: 20] — The minimum allowed field value Blue
  • launch/segment_objects.launch
      • node_name [default: segment_objects]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/simple_flow.launch
      • node_name [default: simple_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • scale [default: 8] — Specify the scale factor to calculate optical flow.
  • launch/smoothing.launch
      • node_name [default: smoothing]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • filter_type [default: 0] — Smoothing Filter Methods. 0:Homogeneous blur, 1:Gaussian blur, 2:Median blur, 3:Bilateral Filter.
      • kernel_size [default: 7] — Size of the kernel (only one because we use a square window). Must be odd.
  • launch/threshold.launch
      • node_name [default: threshold]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • apply_otsu [default: false] — Decide applying Otsu's algotirhm threshold. If this value is true, threshold value will be ignored
      • threshold_type [default: 0] — Specify threshold types. 0: Binary threshold, 1: Binary inverted threshold, 2: Threshold truncated, 3: Threshold to zero, 4: Threshold to zero inverted
      • threshold [default: 150] — threshold value
      • max_binary [default: 255] — maximum value to use with the 0: Binary thresholding and 1: Binary inverted thresholding types.
  • launch/watershed_segmentation.launch
      • node_name [default: watershed_segmentation]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers

Plugins

Recent questions tagged opencv_apps at Robotics Stack Exchange

Package symbol

opencv_apps package from opencv_apps repo

opencv_apps

ROS Distro
noetic

Package Summary

Tags No category tags.
Version 2.0.3
License BSD
Build type CATKIN
Use RECOMMENDED

Repository Summary

Checkout URI https://github.com/ros-perception/opencv_apps.git
VCS Type git
VCS Version indigo
Last Updated 2025-05-22
Dev Status DEVELOPED
Released RELEASED
Tags No category tags.
Contributing Help Wanted (-)
Good First Issues (-)
Pull Requests to Review (-)

Package Description

Additional Links

No additional links.

Maintainers

  • Kei Okada

Authors

  • Kei Okada

opencv_apps

Travis CI Build Status

Indigo Trusty Build Status

Kinetic Xenial Build Status

Melodic Bionic Build Status

Documentation http://wiki.ros.org/opencv_apps

CHANGELOG

Changelog for package opencv_apps

2.0.3 (2025-05-22)

  • [lk_flow] Keep matching information for sparse optical flow (#149)
  • use bgr8 for output visualization (#145)
  • add ROS-O test (#147)
  • Suppress cmake warning (#146)
  • [TEST] Fix catkin_lint version 1.6.18 to avoid [cmake_minimum_required]{.title-ref} error (#143)
  • Add sync_.reset/async_.reset to destructor in face_recognition (#139)
  • fix github actions (#140)
  • fix missing .git directory (#136)
  • Add histogram equalization default and clahe (#126)
  • check all output of test/test-pyramids.test (#127)
  • tests: properly remap camera_info (#125)
  • add Morphology Transformations nodelet (#122)
  • add test to check when adding two images, whcih has different size. (#123)
  • contour_moments_nodelet: don't publish empty image (#124)
  • Add Lab color filter (#114)
  • add test to check on debain_unstable (#121)
  • Remove timestamp from face_data.tar.gz (#117)
  • use snapshot of rosdep list (#120)
  • fix travis, speed up GA tests (#116)
  • add .github/workflows (#115)
  • Contributors: Aoi Nakane, Jochen Sprickerhof, Kei Okada, Martin Günther, Naoto Tsukamoto, Shingo Kitagawa, Yuki Furuta, Iori Yanokura, Ivan Oliveira Tarifa

2.0.2 (2020-08-19)

  • .travis.yml: add noetic test (#108)
    • support oepncv4 for face detection launch/test files
    • convert img_gray every loop, this fixes [ERROR] [1597757072.115502734]: Image processing error: Matrix operand is an empty matrix. checkOperandsExist ../modules/core/src/matrix_expressions.cpp 23 errors
    • check CV_VERSION_VERSION > 4
    • add g++ static to package.xml
    • use python3 for noetic
    • .travis.yml : add CHECK_PYTHON3_COMPILE
    • .travis.yml: add noetic test
  • fix travis (#106)
    • add more package to CATKIN_DEPENDS
    • add image_view to run_depends
  • add hot fix for hydro test (#98)
    • add doublequote arount $TEST
    • add hot fix for hydro test
  • Improved variable names and comments (#95)
    • Improved variable names and comments: The comments and variable names were the opposite of what was functionally happening in the code. No functional change to this commit, just better readability and maintainability.
  • setup EoL repository (#96)
  • Contributors: Gus Crowards, Kei Okada

2.0.1 (2019-04-22)

  • support catkin_lint and clang-format tests in travis.yml (#93)
    • override is not supported gcc4.6 (12.04), remove this fix and add NOLINT
    • clang-tidy code need c++11
    • fix code by run-clang-tidy -fix
    • fix format by clang-format
    • fix CMakeLists.txt and package.xml for catkin_lint
    • support catkin_lint and clang-format tests
  • add queue_size parameter to all nodes, see #83 (#92)
    • add queue_size arg to launch files
    • sometimes simple_example_test fails with 'average rate (36.121Hz) exceeded maximum (35.000Hz)'

File truncated at 100 lines see the full file

Launch files

  • launch/adding_images.launch
      • node_name [default: adding_images]
      • image1 [default: image1] — The image topic. Should be remapped to the name of the real image topic.
      • image2 [default: image2] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • alpha [default: 0.5] — Weight of the first array elements
      • gamma [default: 0] — Scalar added to each sum
      • approximate_sync [default: false] — Flag of approximate_sync. If this value is false, image1 and image2 synchronize exact time.
  • launch/camshift.launch
      • node_name [default: camshift]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram [default: [0.0, 255.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]] — Histogram of tracked color object
      • vmin [default: 10] — Min threshould of lightness.
      • vmax [default: 230] — Max threshould of lightness.
      • smin [default: 60] — Min value of saturation.
  • launch/contour_moments.launch
      • node_name [default: contour_moments]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 100] — Canny Edge low Threshold
  • launch/convex_hull.launch
      • node_name [default: convex_hull]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/corner_harris.launch
      • node_name [default: corner_harris]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 200] — Threshold value of a circle around corners's norm
  • launch/discrete_fourier_transform.launch
      • node_name [default: discrete_fourier_transform]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 1] — Specigy queue_size of input image subscribers
  • launch/edge_detection.launch
      • node_name [default: edge_detection]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • edge_type [default: 0] — Specify edge dtection methods. 0: Sobel Derivatives, 1: Lapalace Operator, 2, Canny Edge Detector.
      • canny_threshold1 [default: 100] — Specify second canny threashold value.
      • canny_threshold2 [default: 200] — Specity first canny threashold value.
      • apertureSize [default: 3] — Aperture size for the Sobel() operator.
      • apply_blur_pre [default: true] — Flag, applying Blur() to input image
      • postBlurSize [default: 13] — Aperture size for the Blur() to input image()
      • postBlurSigma [default: 3.2] — Sigma for the GaussianBlur() to input image.
      • apply_blur_post [default: false] — Flag, applying GaussinaBlur() to output(edge) image
      • L2gradient [default: false] — Flag, L2Gradient
  • launch/equalize_histogram.launch
      • node_name [default: equalize_histogram]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • histogram_equalization_type [default: 0] — Specify histogram equaliztion methods. 0: Default, 1: Clahe
      • clahe_clip_limit [default: 255.0] — The maximum allowed field value Clip Limit
      • clahe_tile_size_x [default: 300] — The maximum allowed field value Threshold X Limit
      • clahe_tile_size_y [default: 300] — The maximum allowed field value Threshold Y Limit
      • use_opencl [default: true] — Enable or disable OpenCL
  • launch/face_detection.launch
      • node_name [default: face_detection]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: $(arg use_opencv3)]
      • use_opencv4 [default: false]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.1.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.2.0-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: $(find opencv3)/../OpenCV-3.3.1-dev/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv4/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
      • face_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml] — Face dtection cascade Filename
      • eyes_cascade_name [default: /usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml] — Eye dtection cascade Filename
  • launch/face_recognition.launch
      • launch_face_detection [default: true]
      • launch_trainer [default: true]
      • use_opencv3 [default: false]
      • use_opencv3_1 [default: false]
      • use_opencv3_2 [default: false]
      • use_opencv3_3 [default: false]
      • use_opencv4 [default: false]
      • debug_view [default: true]
      • queue_size [default: 100] — Specigy queue_size of input image subscribers
      • image [default: image]
      • data_dir [default: ~/.ros/opencv_apps/face_data]
  • launch/fback_flow.launch
      • node_name [default: fback_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/find_contours.launch
      • node_name [default: find_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_low_threshold [default: 10] — Lower threshold for the internal Canny edge detector.
  • launch/general_contours.launch
      • node_name [default: general_contours]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • threshold [default: 100] — Treshold for the detecting edges.
  • launch/goodfeature_track.launch
      • node_name [default: goodfeature_track]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • max_corners [default: 23] — Maximum number of corners to return. If there are more corners than are found, the strongest of them is returned.
  • launch/hls_color_filter.launch
      • node_name [default: hls_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • l_limit_max [default: 255] — The maximum allowed field value Luminance
      • l_limit_min [default: 50] — The minimum allowed field value Luminance
  • launch/hough_circles.launch
      • node_name [default: hough_circles]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • canny_threshold [default: 200] — Upper threshold for the internal Canny edge detector.
      • accumulator_threshold [default: 50] — Threshold for center detection.
      • gaussian_blur_size [default: 9] — The size of gaussian blur (should be odd number)
      • gaussian_sigma_x [default: 2] — Sigma x of gaussian kernel
      • gaussian_sigma_y [default: 2] — Sigma y of gaussian kernel
      • dp [default: 2] — The inverse ratio of resolution.
      • min_circle_radius [default: 0] — The minimum size of the circle, If unknown, put zero as default
      • max_circle_radius [default: 0] — The maximum size of the circle, If unknown, put zero as default.
  • launch/hough_lines.launch
      • node_name [default: hough_lines]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hough_type [default: 0] — Apecify Hough transform type, 0 for Standard Hough Detection and 1 for Probabilistic Hough Detection
      • threshold [default: 150] — Threshould value for hough line detection
      • rho [default: 1.0] — The resolution of the parameter r in pixels.
      • theta [default: 1.0] — The resolution of the parameter theta in radians.
      • minLineLength [default: 30] — The minimum number of points that can form a line.
      • maxLineGrap [default: 10] — The maximum gap between two points to be considered in the same line.
  • launch/hsv_color_filter.launch
      • node_name [default: hsv_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • h_limit_max [default: 250] — The maximum allowed field value Hue
      • h_limit_min [default: 0] — The minimum allowed field value Hue
      • s_limit_max [default: 255] — The maximum allowed field value Saturation
      • s_limit_min [default: 150] — The minimum allowed field value Saturation
      • v_limit_max [default: 255] — The maximum allowed field value Value
      • v_limit_min [default: 50] — The minimum allowed field value Value
  • launch/lab_color_filter.launch
      • node_name [default: lab_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • l_limit_max [default: 255] — The maximum allowed field value L*
      • l_limit_min [default: 50] — The minimum allowed field value L*
      • a_limit_max [default: 250] — The maximum allowed field value a*
      • a_limit_min [default: 0] — The minimum allowed field value a*
      • b_limit_max [default: 255] — The maximum allowed field value b*
      • b_limit_min [default: 150] — The minimum allowed field value b*
  • launch/lk_flow.launch
      • node_name [default: lk_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • quality_level [default: 0.01] — Parameter characterizing the minimal acceptance quality of image corners.
      • min_distance [default: 10] — Minimum possible Euclidean distance between the returned corners.
      • block_size [default: 3] — Size of an average block for computing a derivative covariation matrix over each pixel neighborhood.
      • harris_k [default: 0.04] — Free parameter of the Harris detector
  • launch/morphology.launch
      • node_name [default: morphology]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • morph_operator [default: 0] — Morphology Operation Methods 0: Opening, 1: Closing, 2: Gradient, 3: Top Hat, 4: Black Hat
      • morph_element [default: 0] — Type of the kernel 0: Rect, 1: Cross, 2: Ellipse
      • morph_size [default: 0] — Size of the kernel
  • launch/people_detect.launch
      • node_name [default: people_detect]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • hit_threshold [default: 0] — Threshold for the distance between features and SVM classifying plane
      • win_stride [default: 8] — Window stride. It must be a multiple of block stride.
      • padding [default: 32] — Mock parameter to keep the CPU interface compatibility. It must be (0,0).
      • scale0 [default: 1.05] — Coefficient of the detection window increase.
      • group_threshold [default: 2] — Coefficient to regulate the similarity threshold. When detected, some objects can be covered by many rectangles. 0 means not to perform grouping.
  • launch/phase_corr.launch
      • node_name [default: phase_corr]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/pyramids.launch
      • node_name [default: pyramids]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show pyramids image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • pyramids_type [default: 0] — Specify pyramids Up/Down. 0: Up size(zoom in), 1: Down size(zoom out).
      • num_of_pyramids [default: 0] — Number of Up/Down sampling.
  • launch/rgb_color_filter.launch
      • node_name [default: rgb_color_filter]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • r_limit_max [default: 250] — The maximum allowed field value Red
      • r_limit_min [default: 50] — The minimum allowed field value Red
      • g_limit_max [default: 200] — The maximum allowed field value Green
      • g_limit_min [default: 100] — The minimum allowed field value Green
      • b_limit_max [default: 150] — The maximum allowed field value Blue
      • b_limit_min [default: 20] — The minimum allowed field value Blue
  • launch/segment_objects.launch
      • node_name [default: segment_objects]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
  • launch/simple_flow.launch
      • node_name [default: simple_flow]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • scale [default: 8] — Specify the scale factor to calculate optical flow.
  • launch/smoothing.launch
      • node_name [default: smoothing]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • filter_type [default: 0] — Smoothing Filter Methods. 0:Homogeneous blur, 1:Gaussian blur, 2:Median blur, 3:Bilateral Filter.
      • kernel_size [default: 7] — Size of the kernel (only one because we use a square window). Must be odd.
  • launch/threshold.launch
      • node_name [default: threshold]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers
      • apply_otsu [default: false] — Decide applying Otsu's algotirhm threshold. If this value is true, threshold value will be ignored
      • threshold_type [default: 0] — Specify threshold types. 0: Binary threshold, 1: Binary inverted threshold, 2: Threshold truncated, 3: Threshold to zero, 4: Threshold to zero inverted
      • threshold [default: 150] — threshold value
      • max_binary [default: 255] — maximum value to use with the 0: Binary thresholding and 1: Binary inverted thresholding types.
  • launch/watershed_segmentation.launch
      • node_name [default: watershed_segmentation]
      • image [default: image] — The image topic. Should be remapped to the name of the real image topic.
      • use_camera_info [default: false] — Indicates that the camera_info topic should be subscribed to to get the default input_frame_id. Otherwise the frame from the image message will be used.
      • debug_view [default: true] — Specify whether the node displays a window to show edge image
      • queue_size [default: 3] — Specigy queue_size of input image subscribers

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