Print color material amount determining method

Details Print color material amount determining method Print color material amount determining method

1994-06-29

1995-06-13

Powell, Mark R.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358529, G06F 1500

Patent

active

054251346

ABSTRACT:
When colorimetric values defined in a uniform color space are supplied, a plurality of sets of the amounts of print color materials of cyan, magenta, and yellow are obtained on the basis of the colorimetric values and a plurality of amounts of print color material of black. The ranges of printable color materials are obtained from the plurality of sets of the amounts of color materials of cyan, magenta, and yellow. The common range of the amounts of black material is obtained, which can be used to print each color materials, cyan, magenta, and yellow to reproduce a color. The amount of print color material of black in the range of the amounts of print color material of black is determined on the basis of a predetermined coefficient n. The amounts of print color materials of cyan, magenta, and yellow are determined on the basis of the determined amount of print color material of black and the colorimetric values.

REFERENCES:
patent: 5121196 (1992-06-01), Hung
patent: 5200816 (1993-04-01), Rose
patent: 5305119 (1994-04-01), Rolleston et al.
patent: 5315380 (1994-05-01), Ingraham et al.
patent: 5315415 (1994-05-01), Kawai et al.
patent: 5331440 (1994-07-01), Kita et al.
patent: 5355440 (1994-10-01), Sayanagi et al.
patent: 5357354 (1994-10-01), Matsunawa et al.

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