Color signal compensation apparatus

Details Color signal compensation apparatus Color signal compensation apparatus

1991-05-31

1992-12-15

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358166, H04N 969

Patent

active

051722194

ABSTRACT:
There is disclosed an apparatus for compensating a degraded color signal. A luminance signal of frequency band restricted and the color signal are differentiated. A pseudo-signal is produced which is pseudo-reproduction of frequency components included in the color signal before degraded based on the two differentiated signals. The pseudo-signal is pseudo-degraded as the color signal has been done. The pseudo-degraded signal component is subtracted from the pseudo-signal to produce a compensation signal. The compensation signal is added to the degraded color signal to reproduce a color signal in the status before degraded.

REFERENCES:
patent: 4316215 (1982-02-01), Yasumoto et al.
patent: 4337479 (1982-06-01), Tomimoto et al.
patent: 4504853 (1985-03-01), Faroudja
patent: 4912551 (1990-03-01), Ozaki

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