Method and apparatus for processing color video signals

Facsimile and static presentation processing – Static presentation processing – Attribute control

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358 30, H04N 514

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active

047219980

ABSTRACT:
A method and apparatus is disclosed for improving video signals. High spatial frequency portions of color-representative signals are added to a luminance channel in order to improve the apparent sharpness of images having saturated colors, improve monochrome presentations of color images, and/or reduce the bandwidth necessary to represent color-representative signal components of video signals.

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"Visual Chromaticity-Modulation Transfer Function", Granger et al., J. Opt. Soc. Am., 63, 1973.
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"High-Definition TV System-Signal Standard and Transmission", T. Fujio et al. (NHK), SMPTE, 89, 1980.

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