Color printing having a highlight color image mapped from a full

Details Color printing having a highlight color image mapped from a full Color printing having a highlight color image mapped from a full

1990-08-29

1993-08-17

Teska, Kevin J.

Boots, shoes, and leggings

358500, 346157, G01D 1500

Patent

active

052375170

ABSTRACT:
Mapping of full color images to highlight color images which provides excellent results for both pictorial image and presentation graphics applications is described. Shades and tints for each hue in the original full color image are mapped to a corresponding triangle of colors in the plane of the highlight hue. The apex of the triangle result colors is varied within the triangle of possible result colors according to hue. Differentiations in the result color for the fully saturated cases is provided while preserving the relative saturation and lightness behavior. The triangle of result colors matches the triangle of possible colors when the original hue matches the highlight hue. Mappings are provided for printers using red as the highlight color and also for printers using arbitrary highlight colors. The mappings preserve information important to the viewer while reducing dimensions of the color space. Different information can be preserved depending upon the particular application.

REFERENCES:
patent: 4554241 (1985-11-01), Edwards
patent: 4636839 (1987-01-01), Cole et al.
patent: 4670780 (1987-06-01), McManus et al.
patent: 4682186 (1987-07-01), Sasaki et al.
patent: 4761669 (1988-08-01), Langdon
patent: 4894665 (1990-01-01), Davis
patent: 4903048 (1990-02-01), Harrington
patent: 4907078 (1990-03-01), Hasebe
patent: 4908779 (1990-03-01), Iwata
patent: 4933878 (1990-06-01), Guttag et al.
"Color Gamut Transform Pairs", A. R. Smith, Computer Graphics, vol. 12, No. 3, 1978 pp. 12-19.

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