Apparatus for forming color images using a hue-plus-gray color m

Details Apparatus for forming color images using a hue-plus-gray color m Apparatus for forming color images using a hue-plus-gray color m

1992-05-04

1994-12-27

Ro, Bentsu

Facsimile and static presentation processing

Natural color facsimile

Image reproduction

358520, 358534, 358448, H04N 146

Patent

active

053770242

ABSTRACT:
The invention is for use with a visible medium capable of light reflection etc., and for use with a color-image source that defines a desired color. Here a device for causing the medium to appear colored includes a gray-scale subsystem to achromatically suppress a stated fraction of the reflection; and at least two device-primary subsystems to cause selective reflection of light of two associated device-primary colors. Even if the device, as originally made, in effect uses the gray-scale subsystem to help construct colors, or the device-primary subsystems to help form gray-scale "values", such cross-dependency is essentially removed. A programmed processor resolves the desired-rendition information into Fraction-Black, Fraction-Colorant, and hue. Fraction-Black information is applied exclusively to control only the gray-scale subsystem; Fraction-Colorant to control only the device-primary subsystem; and hue to select a dominant and a subordinate primary subsystem and as between them apportion the Fraction-Colorant.

REFERENCES:
patent: 4413275 (1983-11-01), Horiuchi et al.
patent: 4446470 (1984-05-01), Sugiyama et al.
patent: 4468692 (1984-08-01), Yamada et al.
patent: 4500919 (1985-02-01), Schreiber
patent: 4614967 (1986-09-01), Sayanagi
patent: 4751535 (1988-06-01), Myers
patent: 4959711 (1990-09-01), Hung et al.
patent: 5231504 (1993-07-01), Magee

Affiliated with

Also associated with

Rating

Apparatus for forming color images using a hue-plus-gray color m does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for forming color images using a hue-plus-gray color m, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for forming color images using a hue-plus-gray color m will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-922416