[https://opencv.org/ OpenCV] (Open Source Computer Vision Library) is a library of programming functions mainly aimed at real-time computer vision. == CUDA == OpenCV is also available with CUDA. {{Command|module load gcc cuda opencv/X.Y.Z}} where X.Y.Z represent the desired version. == Extra modules == The module also contains the [https://github.com/opencv/opencv_contrib/tree/4.x/modules#an-overview-of-the-opencv_contrib-modules extra modules (contrib)]. == Python bindings == The module contains bindings for multiple Python versions. To discover which are the compatible Python versions, run {{Command|module spider opencv/X.Y.Z}} Or search directly opencv_python, by running {{Command|module spider opencv_python/X.Y.Z}} where X.Y.Z represent the desired version. === Usage === 1. Load the required modules. {{Command|module load gcc opencv/X.Y.Z python scipy-stack}} where X.Y.Z represent the desired version. 2. Import OpenCV. {{Command|python -c "import cv2"}} If the command displays nothing, the import was successful. ==== Available Python packages ==== Other Python packages depend on OpenCV bindings in order to be installed. OpenCV provides four different packages: * opencv_python * opencv_contrib_python * opencv_python_headless * opencv_contrib_python_headless {{Command |pip list {{!}} grep opencv |result= opencv-contrib-python 4.5.5 opencv-contrib-python-headless 4.5.5 opencv-python 4.5.5 opencv-python-headless 4.5.5 }} With the opencv module loaded, your package dependency for one of the OpenCV named will be satisfied. == Use with OpenEXR == In order to read EXR files with OpenCV, the module must be activated through an environment variable. {{Command|OPENCV_IO_ENABLE_OPENEXR{{=}}1 python }}