Video color detector and chroma key device and method

Details Video color detector and chroma key device and method Video color detector and chroma key device and method

H - Electricity

04

N

350/41, 350/53

H04N 9/75 (2006.01) H04N 7/26 (2006.01)

Patent

CA 1320760

PATENT 333-2070 ABSTRACT OF THE DISCLOSURE The color detector circuit can be adjusted with essentially infinite variability to cause it to detect virtually any color in the visible spectrum, and to define a narrow passband or range of colors which the device will transmit. The device can be used to provide accurate color key signals with a variable passband in chroma key equipment. The device can be used to provide multiple chroma key signals for a single picture frame. A color correction system using the chroma key device also is shown.

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