Color image enhancement device for video display appliance

Details Color image enhancement device for video display appliance Color image enhancement device for video display appliance

1997-03-24

2000-02-22

Peng, John K.

Television

Image signal processing circuitry specific to television

Chrominance signal amplitude control

348 34, 348649, 348708, 348627, 358520, 382254, H04N 964

Patent

active

060286466

ABSTRACT:
A color image enhancement device for a video display appliance capable of improving the sharpness of the color image using a saturation component. The device includes an RGB (red, green, blue)/saturation conversion section for obtaining a saturation of an image of an RGB color model, a saturation enhancement section for emphasizing a high frequency band of the saturation outputted from the RGB/saturation conversion section to enhance the saturation, and a saturation/RGB conversion section for converting an output of the saturation enhancement section into enhanced color signals.

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Derwent, Colour Image Enhancement Device for Video Display Device, Derwent 1997-4515312, Jan. 1997.
Strickland et al., Digital Color Image Enhancement Based on the Saturation Component, 26 Optical Engineering 7, p. 609-16 (Jul. 1987).

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