Automatic tint correction with reduced color saturation error

Details Automatic tint correction with reduced color saturation error Automatic tint correction with reduced color saturation error

1983-04-21

1985-07-09

Murray, Richard

Facsimile and static presentation processing

Static presentation processing

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H04N 9535

Patent

active

045285861

ABSTRACT:
In a color TV receiver, color saturation errors associated with flesh tone correction circuits operating on demodulated color mixture signals are corrected. This is accomplished by adding the absolute value of a fraction of one of the color mixture signals to the color mixture signal in quadrature phasing therewith.

REFERENCES:
patent: 3536827 (1967-11-01), Bell
patent: 3617621 (1971-11-01), Cochran
patent: 3649748 (1972-05-01), Knauer
patent: 3663744 (1972-05-01), Harwood
patent: 3852807 (1974-12-01), Caprio et al.
patent: 3873760 (1975-03-01), Worden
patent: 3996608 (1976-12-01), Harwood
patent: 4001879 (1977-01-01), Nagaoka et al.
patent: 4004140 (1977-01-01), Izumi et al.
patent: 4084178 (1978-04-01), Srivastaba et al.
Harwood et al., "Chroma Circuit Design for the CTC-49", RCA Engineer, vol. 15, No. 5, Feb./Mar. 1971, pp. 15-19.

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