High fidelity color rendering method avoiding moire problems

Details High fidelity color rendering method avoiding moire problems High fidelity color rendering method avoiding moire problems

1996-05-06

1998-04-28

Nguyen, Phu K.

Computer graphics processing and selective visual display system

Computer graphics processing

Graph generating

G03F 308

Patent

active

057451206

ABSTRACT:
In order to achieve a larger color gamut, more colorants are used than the classical three chromatic colors cyan, magenta and yellow. The use of extra process colors, such as red or orange, green and blue, poses extra requirements on the screening process or on the color separation process. A method is described in which optimal color rendering is achieved by use of maximum three chromatic colorants at the same place only. In one embodiment particular sets of three chromatic colorants each cover color sub-gamuts which are disjunctive, allowing each input color to be located within one color sub-gamut. A set comprises no complementary colors.

REFERENCES:
patent: 5270808 (1993-12-01), Tanioka
patent: 5307182 (1994-04-01), Maltz
patent: 5317426 (1994-05-01), Hoshino
patent: 5481661 (1996-01-01), Kobayashi

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