Reproduction of colored images

Details Reproduction of colored images Reproduction of colored images

1988-09-23

1989-11-07

Coles, Sr., Edward L.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 75, 358 78, H04N 146

Patent

active

048795941

ABSTRACT:
A method and apparatus for reproducing a colored original image represented by first signals defining the color content of pixels of the original image in terms of a first set of color components. The colored original image is reproduced using at least two separations representing respective color components of a second set which is different from the first set. The color components of the second set are ranked in order of similarity to each pixel and a value is selected for the highest ranked color component for which each of the first set of color component values defining said selected color component does not exceed the corresponding pixel values. The pixel values are then adjusted to take account of the select value of the color component of the second set. The process is then repeated for each of the remaining color components of the second set in the order of ranking.

REFERENCES:
patent: 3590142 (1971-06-01), Keller
patent: 3629490 (1971-12-01), Keller
patent: 4477833 (1984-10-01), Clark et al.
patent: 4488245 (1984-12-01), Dalke et al.
patent: 4511989 (1985-04-01), Sakamoto
patent: 4613897 (1986-09-01), Stansfield
patent: 4751535 (1988-06-01), Myers

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