OpenCV
Introduction
OpenCV is an open source computer vision library. The library is written in C and C++ and runs under Linux, Windows, Mac OS X and under a lot of other embedded OS. It was designed for computational efficiency and with a strong focus on real-time applications.
One of OpenCV’s goals is to provide a simple-to-use computer vision infrastructure that helps people build fairly sophisticated vision applications quickly. The OpenCV library contains over 500 functions that span many areas in vision, including factory product inspection, medical imaging, security, user interface, camera calibration, stereo vision, and robotics.