Method of generating color separation table

Details Method of generating color separation table Method of generating color separation table

2005-07-26

2005-07-26

Luu, Matthew (Department: 2676)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

C345S604000, C358S001900

Reexamination Certificate

active

06922197

ABSTRACT:
This invention has as its object to provide a color separation table generation method which can improve grayscale characteristics and can suppress generation of a pseudo edge of a reproduced image by introducing a nonlinear interpolation method using a finite element method. To this end, according to the present invention, a color separation table generation method of generating a color separation table used to separate an input color into a plurality of color agent colors, includes: a first table generation step of generating color separation data on a first line that connects white and black points in the color separation table; a second table generation step of generating color separation data on a plurality of second lines each of which connects the white point and each of primary color points each expressed by one of the color agent colors and secondary color points each expressed by two of the color agent colors; a third table generation step of generating color separation data on a plurality of third lines each of which connects each of the primary and secondary color points and the black point; a fourth table generation step of generating color separation data on a plurality of fourth lines each of which connects the primary and secondary color points; and an interpolation step of generating color separation data at grid points inside a three-dimensional color space by an interpolation process based on the color separation data on the first to fourth lines, wherein the interpolation step includes a step of executing an interpolation process using a finite element method for each triangular plane specified on the color space.

REFERENCES:
patent: 5390035 (1995-02-01), Kasson et al.
patent: 6072464 (2000-06-01), Ozeki
patent: 6292195 (2001-09-01), Shimizu et al.
patent: 6571010 (2003-05-01), Inoue
patent: 6587223 (2003-07-01), Yamaguchi
patent: 2002/0021458 (2002-02-01), Saito et al.
patent: 2003/0072016 (2003-04-01), Dalrymple et al.
patent: 2003/0076516 (2003-04-01), Saito
patent: 2003/0202197 (2003-10-01), Saito et al.
patent: 2003/0234946 (2003-12-01), Saito
patent: 2004/0027406 (2004-02-01), Nishikawa et al.
patent: 2004/0070777 (2004-04-01), Nishikawa et al.
patent: 2004/0100640 (2004-05-01), Saito
patent: 2004/0141642 (2004-07-01), Zeng et al.
patent: 2002/33930 (2002-01-01), None

Affiliated with

Also associated with

Rating

Method of generating color separation 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 Method of generating color separation table, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of generating color separation table will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3389282