Color conversion definition method, profile production...

Details Color conversion definition method, profile production... Color conversion definition method, profile production...

2005-03-01

2009-12-15

Poon, King Y (Department: 2625)

Facsimile and static presentation processing

Natural color facsimile

Color correction

C358S001900, C382S167000

Reexamination Certificate

active

07633658

ABSTRACT:
In a color conversion definition process, first, a profile of a virtual device having a color reproduction range that well simulates a color reproduction range of a printing system is produced. A first color conversion is then defined so as to convert a coordinate point in a color reproduction range of a printer expressed in a first RGB color space to a coordinate point in the color reproduction range of the virtual device expressed in a second RGB color space dependent on the virtual device. A second color conversion is then defined so as to convert a coordinate point in the color reproduction range of the virtual device expressed in the second RGB color space to a coordinate point in the color reproduction range of the printing system expressed in the CMYK color space. The resultant coordinate point represents a color very similar to a color represented by the printing system.

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patent: 2003/0189716 (2003-10-01), Tsuji et al.
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patent: 2005-268982 (2005-09-01), None

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