Place in same workspace as the original PARC Engineers League repository
cd ~/ros2_ws/src
git clone https://github.com/PARC-Robotics/opencv-workshop-2024.git
Or, to create a new package from scratch, run the following
ros2 pkg create --build-type ament_python opencv-workshop-2024 --dependencies rclpy std_msgs sensor_msgs cv_bridge image_transport opencv
In a terminal, run the commands
sudo apt-get install libopencv-dev python3-opencv
sudo apt-get install ros-humble-cv-bridge
cd ~/ros2_ws
colcon build --packages-select opencv-workshop-2024
In a terminal, run the commands
python basic_img_operations.py
To use the color thresholding utility from Najam Syed (slightly modified)
python colorthresh.py --image images/image1.jpg
In a terminal, run the commands
source ~/ros2_ws/install.setup.bash
ros2 launch parc_robot_bringup task2_launch.py
Open another terminal and run the following commands
source ~/ros2_ws/install.setup.bash
ros2 run opencv_workshop_2024 img_subscriber