Apparatus and method for processing signals of an imaging device

Details Apparatus and method for processing signals of an imaging device Apparatus and method for processing signals of an imaging device

1993-05-10

1995-04-04

Kostak, Victor R.

Television

Camera, system and detail

Combined image signal generator and general image signal...

348674, H04N 5202

Patent

active

054041651

ABSTRACT:
An apparatus and method for processing signals of an imaging device comprising a detection circuit for detecting the color temperature of a light source for illuminating an object of which the image is picked up and a circuit for varying .gamma. correction characteristics for chrominance signals, whereby the .gamma. correction characteristics are changed to reduce the gains for low level regions of input signals to .gamma. correction circuits in accordance with the color temperature, thereby enabling the final quantize noise to be reduced.

REFERENCES:
patent: 3808358 (1974-04-01), Schneider
patent: 4608595 (1986-08-01), Nakayama
patent: 4982290 (1991-01-01), Nishi
patent: 5027214 (1991-06-01), Fujimori
patent: 5034804 (1991-06-01), Sasaki
A Line Sequential Complete Color Difference Signal Method For Single Chip Color Video Camera, By Kohno, et al., The Institute of TV Engineering of Japan, Technical Report, TEBS 101-1, ED836, pp. 1-6 Feb. 27, 1985.

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