Preserving pure gray colors in a workflow

Details Preserving pure gray colors in a workflow Preserving pure gray colors in a workflow

2008-01-15

2010-12-28

Rogers, Scott A (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S518000, C358S521000, C358S523000

Reexamination Certificate

active

07859722

ABSTRACT:
Systems and methods, including computer software products, for processing gray colors in a conversion between color spaces involve identifying a lookup table used to convert a color value from a first color space to a second color space. The method includes identifying a pure gray color value from a first plurality of color values, determining a corresponding pure gray color value in the second color space substantially equivalent to the pure gray color value from the first plurality, and replacing a corresponding non-pure gray color value with the corresponding pure gray color value. The method includes identifying near gray color values in the second plurality of color values that are located in relatively close proximity in the lookup table to the corresponding pure gray color value in the second color space. The method also includes modifying the lookup table by replacing the near gray color values using a smoothing function.

REFERENCES:
patent: 6137594 (2000-10-01), Decker et al.
patent: 6320668 (2001-11-01), Kim
patent: 6919972 (2005-07-01), Kumada et al.
patent: 6930690 (2005-08-01), Kulkarni
patent: 7046393 (2006-05-01), Zeng
patent: 7199900 (2007-04-01), Ogatsu et al.
patent: 7312893 (2007-12-01), Bestmann et al.
patent: 7633646 (2009-12-01), Ichitani
patent: 7679783 (2010-03-01), Pellar
patent: 2004/0196475 (2004-10-01), Zeng et al.
patent: 2006/0158669 (2006-07-01), Haikin et al.
patent: 2006/0170993 (2006-08-01), Jacob
CHROMiX “CHROMiX Launches ColorThink Pro” http://www2.chromix.com/about/pressrelease.cxsa?snid=1197&-session=SessID:26722A650f366116B2yqn40F3F92, Sep. 7, 2005.

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