Gray balance control system

Details Gray balance control system Gray balance control system

1989-10-26

1992-06-09

Wieder, Kenneth A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 80, 358448, 358455, H04N 146

Patent

active

051211955

ABSTRACT:
A gray balance control system for reproducing original images. An optical signal is separated into a plurality of separated color signals, gray balance conversion data for each of the colors of the separated color signals is stored in a memory circuit, and an equivalent neutral density conversion is performed on the plurality of separated color signals by converting the color signals to gray balanced color signals in accordance with the gray balance conversion data. Finally, the gray balanced color signals are converted into print signals for coloring materials.

REFERENCES:
patent: 4472736 (1984-09-01), Ushio et al.
patent: 4590515 (1986-05-01), Wellendorf
patent: 4667228 (1987-05-01), Kawamura et al.
patent: 4752822 (1988-06-01), Kawamura
patent: 4812902 (1989-03-01), Fuchsberger
patent: 4812903 (1989-03-01), Wagensonner et al.
patent: 4841360 (1989-06-01), Birgmeir
patent: 4899216 (1990-02-01), Tatsumi et al.

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