The invention utilizes the fact that anyone with normal color vision has the ability look at a scene on a video display and recognize a black area if one is present; a white area if one is present, and face or flesh areas if a person is present. It is also easy to recognize blond hair, subjects that...http://www.google.com/patents/US5907315?utm_source=gb-gplus-sharePatent US5907315 - Method and apparatus for adjusting parameters used by compositing devices
