Accuracy of color conversion profile

Details Accuracy of color conversion profile Accuracy of color conversion profile

2004-04-14

2008-11-11

Poon, King (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S518000, C358S523000, C358S519000, C358S520000, C358S530000, C358S515000, C345S600000, C382S162000, C382S167000

Reexamination Certificate

active

07450267

ABSTRACT:
A method for determining lattice points to be referenced to prepare the correspondence defining data, said method including steps of prescribing a smoothness evaluation function which evaluates smoothness of arrangement of lattice points in the device-independent color space and which has as a variable the lattice point position information in the low-dimensional color space which is prescribed by less color components than the number of inks used by the printing apparatus, optimizing the arrangement of lattice points in the device-independent color-space by improving the rating of the smoothness evaluation function, with the lattice point position information in the low-dimensional color space varied, and associating the amount of each ink with the lattice points in the low-dimensional color space in the optimized state.

REFERENCES:
patent: 5504821 (1996-04-01), Kanamori et al.
patent: 6128407 (2000-10-01), Inoue et al.
patent: 6335734 (2002-01-01), Nagae et al.
patent: 2004/0263882 (2004-12-01), Ito et al.

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