Method and apparatus for preparing special color separation

Details Method and apparatus for preparing special color separation Method and apparatus for preparing special color separation

1996-09-12

1999-08-10

Vu, Kim Yen

Facsimile and static presentation processing

Natural color facsimile

Color separation

358501, 358518, 358534, H04N 154

Patent

active

059367490

ABSTRACT:
The present invention readily produces an image of a special color separation, with respect to a color image which is to be reproduced by a plurality of color separations including Y, M, and C separations. The method first specifies a relationship between a predetermined density of a special color separation and densities of a plurality of other color separations corresponding to the predetermined density of the special color separation; then extracts each color element included in a color image as a target color element; and determines a density of the special color separation according to the specified relationship.

REFERENCES:
patent: 4613897 (1986-09-01), Stansfield
patent: 5018008 (1991-05-01), Asada
patent: 5370976 (1994-12-01), Williamson et al.
patent: 5546197 (1996-08-01), Shibazaki et al.

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