Color conversion method using a colors look-up table

Details Color conversion method using a colors look-up table Color conversion method using a colors look-up table

2006-12-08

2010-11-02

Moore, David K (Department: 2625)

Facsimile and static presentation processing

Natural color facsimile

Color correction

C358S523000, C358S524000, C358S525000, C358S001900, C345S555000, C345S556000, C345S600000, C345S601000, C345S602000, C345S603000, C345S604000, C345S605000, C382S232000

Reexamination Certificate

active

07826111

ABSTRACT:
Disclosed is color conversion method using a color look-up table. The method includes the steps of: generating a color look-up table using information on the difference of each channel before and after a conversion of each color; and converting the colors using the generated color look-up table. The step of generating the color look-up table includes identifying the maximum difference value among several difference values and generating a first compressed table to initially compress the difference values using the maximum difference value. Further, the step of generating the color look-up table further includes determining, using a predetermined algorithm, whether precedence bits can be removed in the difference values stored in the first compressed table, if yes, removing the corresponding checked bits and storing the converted channel value in a separate auxiliary color table and, if no, storing an index relating to the auxiliary color table as the corresponding difference value, and generating a secondary compressed table that secondarily compresses the initially compressed difference value and adding type information that indicates if information stored as each difference value is the difference value or the index.

REFERENCES:
patent: 4752822 (1988-06-01), Kawamura
patent: 5130786 (1992-07-01), Murata et al.
patent: 5592591 (1997-01-01), Rolleston
patent: 5751233 (1998-05-01), Tateno et al.
patent: 5805735 (1998-09-01), Chen et al.
patent: 7126611 (2006-10-01), Weed
patent: 2006/0007497 (2006-01-01), Yokochi
patent: 2006/0033939 (2006-02-01), Han
patent: 2006/0269152 (2006-11-01), Fenney
patent: 2007/0195342 (2007-08-01), Sugiura et al.
patent: 2009/0024643 (2009-01-01), Mittal
patent: 09-069961 (1997-03-01), None
patent: 2000-188696 (2000-07-01), None
patent: 2003-219191 (2003-07-01), None
patent: 2004-208128 (2004-07-01), None
patent: 2005-249821 (2005-09-01), None

Affiliated with

Also associated with

Rating

Color conversion method using a colors look-up table does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Color conversion method using a colors look-up table, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color conversion method using a colors look-up table will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4221111