Preserving gray colors

Details Preserving gray colors Preserving gray colors

2005-08-16

2005-08-16

Bella, Matthew C. (Department: 2676)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

C345S600000, C345S591000, C345S597000, C345S089000, C382S167000, C382S181000, C382S266000, C382S176000, C358S296000, C358S001900

Reexamination Certificate

active

06930690

ABSTRACT:
Method and apparatus for preserving gray colors in an electronic document. An electronic document is received. The document contains a plurality of objects having a plurality of object types. Objects of a type which require gray preservation are selected. The colors of selected objects are tested for gray. The gray color test is conducted in a local color space, or alternatively in a device independent color space after converting the objects colors to the device independent color space after converting the objects colors to the device independent color space. The gray color test in the test color space is a strict color test, or alternatively is a relaxed color test. Objects containing only gray colors are identified, and their colors are preserved by inhibiting color management of their colors. Color management is inhibited by saving the objects colors in a color space which is not color managed, or alternatively, by tagging the objects or associating an attribute with the objects to indicate the objects should not be color managed.

REFERENCES:
patent: 5835098 (1998-11-01), Lipton
patent: 5867277 (1999-02-01), Melen et al.
patent: 6008907 (1999-12-01), Vigneau et al.
patent: 6301386 (2001-10-01), Zhu et al.
patent: 6522778 (2003-02-01), Tamagawa
patent: 6606420 (2003-08-01), Loce et al.
patent: 2002/0146171 (2002-10-01), Chandrasekhar
patent: 2003/0142865 (2003-07-01), Hirota et al.

Affiliated with

Also associated with

Rating

Preserving gray colors does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preserving gray colors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preserving gray colors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3442839