Method of obtaining monochromatic image from color original thro

Details Method of obtaining monochromatic image from color original thro Method of obtaining monochromatic image from color original thro

1988-12-09

1991-05-14

Chin, Tommy P.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 75, 358 80, 346140R, G03F 308

Patent

active

050160974

ABSTRACT:
A magenta signal (M) may be selected from four color component signals, (Y, M, C and K) through a switching circuit (10) and is subjected to respective gradation corrections in gradation correction circuits (11Y, 11M, 11C and 11K) in parallel. Images for yellow, magenta, cyan and black blocks are recorded on a photosensitive film (5) from the signals obtained via the gradation correction circuits. Color inks are overprinted on a common paper through the blocks, thereby to obtain a monochromatic image on the paper.

REFERENCES:
patent: 4319268 (1982-03-01), Yamada
patent: 4402007 (1983-08-01), Yamada
patent: 4564859 (1986-01-01), Knop et al.
patent: 4589035 (1986-05-01), Yamanishi et al.
patent: 4668979 (1987-05-01), Jung
patent: 4769696 (1988-09-01), Utsuda et al.
patent: 4926252 (1990-05-01), Nagano

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