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 and iOS.
Q&A forum: answers.opencv.org
Please pay special attention to our tutorials! http://docs.opencv.org/doc/tutorials/tutorials.html
Books about the OpenCV are described here: http://opencv.org/books.html
It is one of the best designed libraries I have seen for C++ (after Qt of course :)). The API is neat, it has C, Python, Java bindings. What else would you want?
Thanks for Opencvlibrary, it's excellent!
This app really help me a lot!
Thanks guys, you really are the best!
Great application for picky persons like me.