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OpenCV (Open Source Computer Vision) is a library of programming functions for real time computer vision.
OpenCV is released under a BSD license, it is free for both academic and commercial use. It has C++, C, Python and soon Java interfaces running on Windows, Linux, Android and Mac. The library has >2500 optimized algorithms (see figure below). It is used around the world, has >2.5M downloads and >40K people in the user group. Uses range from interactive art, to mine inspection, stitching maps on the web on through advanced robotics.
OpenCV is in Google Summer of Code 2012 Project page.
OpenCV now has a new developer site: http://code.opencv.org. A new user site is in progress.
Online documentation/reference manual (C++/Python/C).
For the latest code, see the Install Guide.
See the User Group for questions, help, announcements.
See the Full Wiki for user docs, camera and OS compatibility ...