Method and apparatus for converting color space

Details Method and apparatus for converting color space Method and apparatus for converting color space

1997-06-04

1999-11-09

Popovici, Dov

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358518, G06F 1500

Patent

active

059829907

ABSTRACT:
An ink-jet printing system and method are disclosed which convert monitor-based RGB images to an image represented in CMYLcLmK, in which Lc is a low-dye-load cyan and Lm is a low-dye-load magenta. The method provides a color cube matrix in RGB color space, with a finite set of control points within this color cube. Each control point has a corresponding set of parameters in the CMYLcLmK color space. The control points provide transition points between use of high-dye-load inks and low-dye-load inks to enhance the color image, especially in areas where high-dye-load inks would cause graininess. Based on this set of control point an interpolation is made to arrive at CMYLcLmK parameters of any point in the cube.

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