A flesh-tone area is detected based on color-difference and luminance signals constituting video signals, and luminance correction, color correction, and aperture correction are performed only on the flesh-tone area or a human face area identified in the flesh-tone area. The setting of a focus area or...http://www.google.co.uk/patents/US5488429?utm_source=gb-gplus-sharePatent US5488429 - Video signal processor for detecting flesh tones in am image
Video signal processor for detecting flesh tones in am image
