Color conversion definition creating method, color...

Details Color conversion definition creating method, color... Color conversion definition creating method, color...

2007-02-20

2007-02-20

Lamb, Twyler (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S518000, C345S604000, C382S167000, C347S043000

Reexamination Certificate

active

10280051

ABSTRACT:
In color conversion definition creating method and color conversion definition creating apparatus for creating a color conversion definition defining a relation of data conversion between RGB data for a printer and CMYK data for printing to perform printing in which a color of an image outputted by a printer receiving the RGB data and outputting the image is reproduced, a data conversion algorithm60, in which color conversion parameters customized by a skilled person in color customizing are set up, is used to determine a curve of K on a gray axis (a first K-function creating section54), and the data conversion algorithm60is altered into a color conversion algorithm faithful in colorimetry as to K to determine values of K of the whole color spaces (a second K-function creating section54). With respect to C, M and Y besides K, values are determined so that calorimetric values are matched.

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