ROS Index
Repository Summary
| Checkout URI | https://github.com/ros-event-camera/fibar_lib.git |
| VCS Type | git |
| VCS Version | release |
| Last Updated | 2025-11-11 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| fibar_lib | 1.0.0 |
README
FIBAR: filter based image reconstruction from events
This repository holds plain C++ code for event image reconstruction by means of a temporal and spatial filtering algorithm described here. It has no dependencies on ROS.
For usage examples, see the corresponding ROS image reconstruction repo.
Supported platforms
Currently tested for long-term Ubuntu 22.04 and later.
How to build
Set the following shell variables:
repo=fibar_lib
url=https://github.com/ros-event-camera/${repo}.git
and follow the generic ROS package build instructions here. Since this package is a ROS-free cmake package, you can also just use the standard cmake build commands.
How to run tests
Before committing changes to the repo, run the tests as follows at the top of the ROS workspace.
rm -rf build_test; mkdir build_test; cd build_test; cmake ../src/fibar_lib/ -DBUILD_TESTING=ON; make; make test; make format_check; cd ..
License
This software is issued under the Apache License Version 2.0.
CONTRIBUTING
Repository Summary
| Checkout URI | https://github.com/ros-event-camera/fibar_lib.git |
| VCS Type | git |
| VCS Version | release |
| Last Updated | 2025-11-11 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| fibar_lib | 1.0.0 |
README
FIBAR: filter based image reconstruction from events
This repository holds plain C++ code for event image reconstruction by means of a temporal and spatial filtering algorithm described here. It has no dependencies on ROS.
For usage examples, see the corresponding ROS image reconstruction repo.
Supported platforms
Currently tested for long-term Ubuntu 22.04 and later.
How to build
Set the following shell variables:
repo=fibar_lib
url=https://github.com/ros-event-camera/${repo}.git
and follow the generic ROS package build instructions here. Since this package is a ROS-free cmake package, you can also just use the standard cmake build commands.
How to run tests
Before committing changes to the repo, run the tests as follows at the top of the ROS workspace.
rm -rf build_test; mkdir build_test; cd build_test; cmake ../src/fibar_lib/ -DBUILD_TESTING=ON; make; make test; make format_check; cd ..
License
This software is issued under the Apache License Version 2.0.
CONTRIBUTING
Repository Summary
| Checkout URI | https://github.com/ros-event-camera/fibar_lib.git |
| VCS Type | git |
| VCS Version | release |
| Last Updated | 2025-11-11 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| fibar_lib | 1.0.0 |
README
FIBAR: filter based image reconstruction from events
This repository holds plain C++ code for event image reconstruction by means of a temporal and spatial filtering algorithm described here. It has no dependencies on ROS.
For usage examples, see the corresponding ROS image reconstruction repo.
Supported platforms
Currently tested for long-term Ubuntu 22.04 and later.
How to build
Set the following shell variables:
repo=fibar_lib
url=https://github.com/ros-event-camera/${repo}.git
and follow the generic ROS package build instructions here. Since this package is a ROS-free cmake package, you can also just use the standard cmake build commands.
How to run tests
Before committing changes to the repo, run the tests as follows at the top of the ROS workspace.
rm -rf build_test; mkdir build_test; cd build_test; cmake ../src/fibar_lib/ -DBUILD_TESTING=ON; make; make test; make format_check; cd ..
License
This software is issued under the Apache License Version 2.0.
CONTRIBUTING
Repository Summary
| Checkout URI | https://github.com/ros-event-camera/fibar_lib.git |
| VCS Type | git |
| VCS Version | release |
| Last Updated | 2025-11-11 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| fibar_lib | 1.0.0 |
README
FIBAR: filter based image reconstruction from events
This repository holds plain C++ code for event image reconstruction by means of a temporal and spatial filtering algorithm described here. It has no dependencies on ROS.
For usage examples, see the corresponding ROS image reconstruction repo.
Supported platforms
Currently tested for long-term Ubuntu 22.04 and later.
How to build
Set the following shell variables:
repo=fibar_lib
url=https://github.com/ros-event-camera/${repo}.git
and follow the generic ROS package build instructions here. Since this package is a ROS-free cmake package, you can also just use the standard cmake build commands.
How to run tests
Before committing changes to the repo, run the tests as follows at the top of the ROS workspace.
rm -rf build_test; mkdir build_test; cd build_test; cmake ../src/fibar_lib/ -DBUILD_TESTING=ON; make; make test; make format_check; cd ..
License
This software is issued under the Apache License Version 2.0.
CONTRIBUTING
Repository Summary
| Checkout URI | https://github.com/ros-event-camera/fibar_lib.git |
| VCS Type | git |
| VCS Version | release |
| Last Updated | 2025-11-11 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| fibar_lib | 1.0.0 |
README
FIBAR: filter based image reconstruction from events
This repository holds plain C++ code for event image reconstruction by means of a temporal and spatial filtering algorithm described here. It has no dependencies on ROS.
For usage examples, see the corresponding ROS image reconstruction repo.
Supported platforms
Currently tested for long-term Ubuntu 22.04 and later.
How to build
Set the following shell variables:
repo=fibar_lib
url=https://github.com/ros-event-camera/${repo}.git
and follow the generic ROS package build instructions here. Since this package is a ROS-free cmake package, you can also just use the standard cmake build commands.
How to run tests
Before committing changes to the repo, run the tests as follows at the top of the ROS workspace.
rm -rf build_test; mkdir build_test; cd build_test; cmake ../src/fibar_lib/ -DBUILD_TESTING=ON; make; make test; make format_check; cd ..
License
This software is issued under the Apache License Version 2.0.
CONTRIBUTING
Repository Summary
| Checkout URI | https://github.com/ros-event-camera/fibar_lib.git |
| VCS Type | git |
| VCS Version | release |
| Last Updated | 2025-11-11 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| fibar_lib | 1.0.0 |
README
FIBAR: filter based image reconstruction from events
This repository holds plain C++ code for event image reconstruction by means of a temporal and spatial filtering algorithm described here. It has no dependencies on ROS.
For usage examples, see the corresponding ROS image reconstruction repo.
Supported platforms
Currently tested for long-term Ubuntu 22.04 and later.
How to build
Set the following shell variables:
repo=fibar_lib
url=https://github.com/ros-event-camera/${repo}.git
and follow the generic ROS package build instructions here. Since this package is a ROS-free cmake package, you can also just use the standard cmake build commands.
How to run tests
Before committing changes to the repo, run the tests as follows at the top of the ROS workspace.
rm -rf build_test; mkdir build_test; cd build_test; cmake ../src/fibar_lib/ -DBUILD_TESTING=ON; make; make test; make format_check; cd ..
License
This software is issued under the Apache License Version 2.0.
CONTRIBUTING
Repository Summary
| Checkout URI | https://github.com/ros-event-camera/fibar_lib.git |
| VCS Type | git |
| VCS Version | release |
| Last Updated | 2025-11-11 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| fibar_lib | 1.0.0 |
README
FIBAR: filter based image reconstruction from events
This repository holds plain C++ code for event image reconstruction by means of a temporal and spatial filtering algorithm described here. It has no dependencies on ROS.
For usage examples, see the corresponding ROS image reconstruction repo.
Supported platforms
Currently tested for long-term Ubuntu 22.04 and later.
How to build
Set the following shell variables:
repo=fibar_lib
url=https://github.com/ros-event-camera/${repo}.git
and follow the generic ROS package build instructions here. Since this package is a ROS-free cmake package, you can also just use the standard cmake build commands.
How to run tests
Before committing changes to the repo, run the tests as follows at the top of the ROS workspace.
rm -rf build_test; mkdir build_test; cd build_test; cmake ../src/fibar_lib/ -DBUILD_TESTING=ON; make; make test; make format_check; cd ..
License
This software is issued under the Apache License Version 2.0.
CONTRIBUTING
Repository Summary
| Checkout URI | https://github.com/ros-event-camera/fibar_lib.git |
| VCS Type | git |
| VCS Version | release |
| Last Updated | 2025-11-11 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| fibar_lib | 1.0.0 |
README
FIBAR: filter based image reconstruction from events
This repository holds plain C++ code for event image reconstruction by means of a temporal and spatial filtering algorithm described here. It has no dependencies on ROS.
For usage examples, see the corresponding ROS image reconstruction repo.
Supported platforms
Currently tested for long-term Ubuntu 22.04 and later.
How to build
Set the following shell variables:
repo=fibar_lib
url=https://github.com/ros-event-camera/${repo}.git
and follow the generic ROS package build instructions here. Since this package is a ROS-free cmake package, you can also just use the standard cmake build commands.
How to run tests
Before committing changes to the repo, run the tests as follows at the top of the ROS workspace.
rm -rf build_test; mkdir build_test; cd build_test; cmake ../src/fibar_lib/ -DBUILD_TESTING=ON; make; make test; make format_check; cd ..
License
This software is issued under the Apache License Version 2.0.
CONTRIBUTING
Repository Summary
| Checkout URI | https://github.com/ros-event-camera/fibar_lib.git |
| VCS Type | git |
| VCS Version | release |
| Last Updated | 2025-11-11 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| fibar_lib | 1.0.0 |
README
FIBAR: filter based image reconstruction from events
This repository holds plain C++ code for event image reconstruction by means of a temporal and spatial filtering algorithm described here. It has no dependencies on ROS.
For usage examples, see the corresponding ROS image reconstruction repo.
Supported platforms
Currently tested for long-term Ubuntu 22.04 and later.
How to build
Set the following shell variables:
repo=fibar_lib
url=https://github.com/ros-event-camera/${repo}.git
and follow the generic ROS package build instructions here. Since this package is a ROS-free cmake package, you can also just use the standard cmake build commands.
How to run tests
Before committing changes to the repo, run the tests as follows at the top of the ROS workspace.
rm -rf build_test; mkdir build_test; cd build_test; cmake ../src/fibar_lib/ -DBUILD_TESTING=ON; make; make test; make format_check; cd ..
License
This software is issued under the Apache License Version 2.0.
CONTRIBUTING
Repository Summary
| Checkout URI | https://github.com/ros-event-camera/fibar_lib.git |
| VCS Type | git |
| VCS Version | release |
| Last Updated | 2025-11-11 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| fibar_lib | 1.0.0 |
README
FIBAR: filter based image reconstruction from events
This repository holds plain C++ code for event image reconstruction by means of a temporal and spatial filtering algorithm described here. It has no dependencies on ROS.
For usage examples, see the corresponding ROS image reconstruction repo.
Supported platforms
Currently tested for long-term Ubuntu 22.04 and later.
How to build
Set the following shell variables:
repo=fibar_lib
url=https://github.com/ros-event-camera/${repo}.git
and follow the generic ROS package build instructions here. Since this package is a ROS-free cmake package, you can also just use the standard cmake build commands.
How to run tests
Before committing changes to the repo, run the tests as follows at the top of the ROS workspace.
rm -rf build_test; mkdir build_test; cd build_test; cmake ../src/fibar_lib/ -DBUILD_TESTING=ON; make; make test; make format_check; cd ..
License
This software is issued under the Apache License Version 2.0.
CONTRIBUTING
Repository Summary
| Checkout URI | https://github.com/ros-event-camera/fibar_lib.git |
| VCS Type | git |
| VCS Version | release |
| Last Updated | 2025-11-11 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| fibar_lib | 1.0.0 |
README
FIBAR: filter based image reconstruction from events
This repository holds plain C++ code for event image reconstruction by means of a temporal and spatial filtering algorithm described here. It has no dependencies on ROS.
For usage examples, see the corresponding ROS image reconstruction repo.
Supported platforms
Currently tested for long-term Ubuntu 22.04 and later.
How to build
Set the following shell variables:
repo=fibar_lib
url=https://github.com/ros-event-camera/${repo}.git
and follow the generic ROS package build instructions here. Since this package is a ROS-free cmake package, you can also just use the standard cmake build commands.
How to run tests
Before committing changes to the repo, run the tests as follows at the top of the ROS workspace.
rm -rf build_test; mkdir build_test; cd build_test; cmake ../src/fibar_lib/ -DBUILD_TESTING=ON; make; make test; make format_check; cd ..
License
This software is issued under the Apache License Version 2.0.
CONTRIBUTING
Repository Summary
| Checkout URI | https://github.com/ros-event-camera/fibar_lib.git |
| VCS Type | git |
| VCS Version | release |
| Last Updated | 2025-11-11 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| fibar_lib | 1.0.0 |
README
FIBAR: filter based image reconstruction from events
This repository holds plain C++ code for event image reconstruction by means of a temporal and spatial filtering algorithm described here. It has no dependencies on ROS.
For usage examples, see the corresponding ROS image reconstruction repo.
Supported platforms
Currently tested for long-term Ubuntu 22.04 and later.
How to build
Set the following shell variables:
repo=fibar_lib
url=https://github.com/ros-event-camera/${repo}.git
and follow the generic ROS package build instructions here. Since this package is a ROS-free cmake package, you can also just use the standard cmake build commands.
How to run tests
Before committing changes to the repo, run the tests as follows at the top of the ROS workspace.
rm -rf build_test; mkdir build_test; cd build_test; cmake ../src/fibar_lib/ -DBUILD_TESTING=ON; make; make test; make format_check; cd ..
License
This software is issued under the Apache License Version 2.0.
CONTRIBUTING
Repository Summary
| Checkout URI | https://github.com/ros-event-camera/fibar_lib.git |
| VCS Type | git |
| VCS Version | release |
| Last Updated | 2025-11-11 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| fibar_lib | 1.0.0 |
README
FIBAR: filter based image reconstruction from events
This repository holds plain C++ code for event image reconstruction by means of a temporal and spatial filtering algorithm described here. It has no dependencies on ROS.
For usage examples, see the corresponding ROS image reconstruction repo.
Supported platforms
Currently tested for long-term Ubuntu 22.04 and later.
How to build
Set the following shell variables:
repo=fibar_lib
url=https://github.com/ros-event-camera/${repo}.git
and follow the generic ROS package build instructions here. Since this package is a ROS-free cmake package, you can also just use the standard cmake build commands.
How to run tests
Before committing changes to the repo, run the tests as follows at the top of the ROS workspace.
rm -rf build_test; mkdir build_test; cd build_test; cmake ../src/fibar_lib/ -DBUILD_TESTING=ON; make; make test; make format_check; cd ..
License
This software is issued under the Apache License Version 2.0.
CONTRIBUTING
Repository Summary
| Checkout URI | https://github.com/ros-event-camera/fibar_lib.git |
| VCS Type | git |
| VCS Version | release |
| Last Updated | 2025-11-11 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| fibar_lib | 1.0.0 |
README
FIBAR: filter based image reconstruction from events
This repository holds plain C++ code for event image reconstruction by means of a temporal and spatial filtering algorithm described here. It has no dependencies on ROS.
For usage examples, see the corresponding ROS image reconstruction repo.
Supported platforms
Currently tested for long-term Ubuntu 22.04 and later.
How to build
Set the following shell variables:
repo=fibar_lib
url=https://github.com/ros-event-camera/${repo}.git
and follow the generic ROS package build instructions here. Since this package is a ROS-free cmake package, you can also just use the standard cmake build commands.
How to run tests
Before committing changes to the repo, run the tests as follows at the top of the ROS workspace.
rm -rf build_test; mkdir build_test; cd build_test; cmake ../src/fibar_lib/ -DBUILD_TESTING=ON; make; make test; make format_check; cd ..
License
This software is issued under the Apache License Version 2.0.
CONTRIBUTING
Repository Summary
| Checkout URI | https://github.com/ros-event-camera/fibar_lib.git |
| VCS Type | git |
| VCS Version | release |
| Last Updated | 2025-11-11 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| fibar_lib | 1.0.0 |
README
FIBAR: filter based image reconstruction from events
This repository holds plain C++ code for event image reconstruction by means of a temporal and spatial filtering algorithm described here. It has no dependencies on ROS.
For usage examples, see the corresponding ROS image reconstruction repo.
Supported platforms
Currently tested for long-term Ubuntu 22.04 and later.
How to build
Set the following shell variables:
repo=fibar_lib
url=https://github.com/ros-event-camera/${repo}.git
and follow the generic ROS package build instructions here. Since this package is a ROS-free cmake package, you can also just use the standard cmake build commands.
How to run tests
Before committing changes to the repo, run the tests as follows at the top of the ROS workspace.
rm -rf build_test; mkdir build_test; cd build_test; cmake ../src/fibar_lib/ -DBUILD_TESTING=ON; make; make test; make format_check; cd ..
License
This software is issued under the Apache License Version 2.0.
CONTRIBUTING
Repository Summary
| Checkout URI | https://github.com/ros-event-camera/fibar_lib.git |
| VCS Type | git |
| VCS Version | release |
| Last Updated | 2025-11-11 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| fibar_lib | 1.0.0 |
README
FIBAR: filter based image reconstruction from events
This repository holds plain C++ code for event image reconstruction by means of a temporal and spatial filtering algorithm described here. It has no dependencies on ROS.
For usage examples, see the corresponding ROS image reconstruction repo.
Supported platforms
Currently tested for long-term Ubuntu 22.04 and later.
How to build
Set the following shell variables:
repo=fibar_lib
url=https://github.com/ros-event-camera/${repo}.git
and follow the generic ROS package build instructions here. Since this package is a ROS-free cmake package, you can also just use the standard cmake build commands.
How to run tests
Before committing changes to the repo, run the tests as follows at the top of the ROS workspace.
rm -rf build_test; mkdir build_test; cd build_test; cmake ../src/fibar_lib/ -DBUILD_TESTING=ON; make; make test; make format_check; cd ..
License
This software is issued under the Apache License Version 2.0.
CONTRIBUTING
Repository Summary
| Checkout URI | https://github.com/ros-event-camera/fibar_lib.git |
| VCS Type | git |
| VCS Version | release |
| Last Updated | 2025-11-11 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| fibar_lib | 1.0.0 |
README
FIBAR: filter based image reconstruction from events
This repository holds plain C++ code for event image reconstruction by means of a temporal and spatial filtering algorithm described here. It has no dependencies on ROS.
For usage examples, see the corresponding ROS image reconstruction repo.
Supported platforms
Currently tested for long-term Ubuntu 22.04 and later.
How to build
Set the following shell variables:
repo=fibar_lib
url=https://github.com/ros-event-camera/${repo}.git
and follow the generic ROS package build instructions here. Since this package is a ROS-free cmake package, you can also just use the standard cmake build commands.
How to run tests
Before committing changes to the repo, run the tests as follows at the top of the ROS workspace.
rm -rf build_test; mkdir build_test; cd build_test; cmake ../src/fibar_lib/ -DBUILD_TESTING=ON; make; make test; make format_check; cd ..
License
This software is issued under the Apache License Version 2.0.
CONTRIBUTING
Repository Summary
| Checkout URI | https://github.com/ros-event-camera/fibar_lib.git |
| VCS Type | git |
| VCS Version | release |
| Last Updated | 2025-11-11 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| fibar_lib | 1.0.0 |
README
FIBAR: filter based image reconstruction from events
This repository holds plain C++ code for event image reconstruction by means of a temporal and spatial filtering algorithm described here. It has no dependencies on ROS.
For usage examples, see the corresponding ROS image reconstruction repo.
Supported platforms
Currently tested for long-term Ubuntu 22.04 and later.
How to build
Set the following shell variables:
repo=fibar_lib
url=https://github.com/ros-event-camera/${repo}.git
and follow the generic ROS package build instructions here. Since this package is a ROS-free cmake package, you can also just use the standard cmake build commands.
How to run tests
Before committing changes to the repo, run the tests as follows at the top of the ROS workspace.
rm -rf build_test; mkdir build_test; cd build_test; cmake ../src/fibar_lib/ -DBUILD_TESTING=ON; make; make test; make format_check; cd ..
License
This software is issued under the Apache License Version 2.0.
CONTRIBUTING
Repository Summary
| Checkout URI | https://github.com/ros-event-camera/fibar_lib.git |
| VCS Type | git |
| VCS Version | release |
| Last Updated | 2025-11-11 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| fibar_lib | 1.0.0 |
README
FIBAR: filter based image reconstruction from events
This repository holds plain C++ code for event image reconstruction by means of a temporal and spatial filtering algorithm described here. It has no dependencies on ROS.
For usage examples, see the corresponding ROS image reconstruction repo.
Supported platforms
Currently tested for long-term Ubuntu 22.04 and later.
How to build
Set the following shell variables:
repo=fibar_lib
url=https://github.com/ros-event-camera/${repo}.git
and follow the generic ROS package build instructions here. Since this package is a ROS-free cmake package, you can also just use the standard cmake build commands.
How to run tests
Before committing changes to the repo, run the tests as follows at the top of the ROS workspace.
rm -rf build_test; mkdir build_test; cd build_test; cmake ../src/fibar_lib/ -DBUILD_TESTING=ON; make; make test; make format_check; cd ..
License
This software is issued under the Apache License Version 2.0.