The Open Source Computer Vision Library has >2500 algorithms, extensive documentation and sample code for real-time computer vision. It works on Windows, Linux, Mac OS X, Android, iOS and in your browser through JavaScript.
Homepage: https://opencv.org
Q&A forum: https://forum.opencv.org/
Documentation: https://docs.opencv.org
Github: https://github.com/opencv
Please pay special attention to our tutorials! https://docs.opencv.org/master/
News: https://opencv.org/news/
Podcast: https://opencv.org/ai-for-entrepreneurs-podcast/
Books about the OpenCV are described here: https://opencv.org/books/