Color conversion definition creating method, color conversion definition creating apparatus, and color conversion definition creating program storage medium

A color conversion definition creating method of creating a color conversion definition converting coordinate points within a color reproduction area of a first device mediating between an image and image data, in a first RGB color space, depending on the first device, into coordinate points within a color reproduction area of printing in a CMYK color space for printing, the color conversion definition creating method comprising:

• a first color conversion definition creating step of creating a first color conversion definition for converting the coordinate points within the color reproduction area of the first device in the first RGB color space into coordinate points within a color reproduction area of an imaginary second device mediating between an image and image data, in a second RGB color space, depending on the imaginary second device, the imaginary second device having a color reproduction area that is coincident with the color reproduction area for printing;
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• a second color conversion definition creating step of creating a second color conversion definition for converting the coordinate points within the color reproduction area of the second device in the second RGB color space into coordinate points within a color reproduction area of printing in a CMYK color space.

A color conversion definition creating apparatus for creating a color conversion definition converting coordinate points within a color reproduction area of a first device mediating between an image and image data, in a first RGB color space, depending on the first device, into coordinate points within a color reproduction area of printing in a CMYK color space for printing, the color conversion definition creating apparatus comprises:

• a first color conversion definition creating section for creating a first color conversion definition for converting the coordinate points within the color reproduction area of the first device in the first RGB color space into coordinate points within a color reproduction area of a second device mediating between an image and image data, in a second RGB color space, depending on the second device, the color reproduction area of the second device being closer to the color reproduction area of the printing than the first device;
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• a second color conversion definition creating section for creating a second color conversion definition for converting the coordinate points within the color reproduction area of the second device in the second RGB color space into coordinate points within a color reproduction area of printing in the CMYK color space.

A color conversion definition creating apparatus for creating a color conversion definition converting coordinate points within a color reproduction area of a first device mediating between an image and image data, in a first RGB color space, depending on the first device, into coordinate points within a color reproduction area of printing in a CMYK color space for printing, the color conversion definition creating apparatus comprises:

• a first color conversion definition creating section for creating a first color conversion definition for converting the coordinate points within the color reproduction area of the first device in the first RGB color space into coordinate points within a color reproduction area of an imaginary second device mediating between an image and image data, in a second RGB color space, depending on the imaginary second device, the imaginary second device having a color reproduction area that is coincident with the color reproduction area for printing;
• and
• a second color conversion definition creating section for creating a second color conversion definition for converting the coordinate points within the color reproduction area of the second device in the second RGB color space into coordinate points within a color reproduction area of printing in the CMYK color space.