Patent ID: 6979069

Claim:
A color conversion processing method comprising steps of: preparing three types of profiles consisting of a target profile providing an association between coordinates on a target color space depending on a predetermined target device and coordinates on a predetermined common color space, a printer processing conversion profile providing an association between coordinates in an area subjected to a restriction according to a predetermined printer on a first printer color space depending on the printer and coordinates, where the restriction is removed, on a second printer color space depending on the printer, and a printer profile providing an association between the coordinates, where the restriction is removed, on the second printer color space, and the coordinates on the common color space; combining the three types of profiles to create a combined profile providing an association between the coordinates on the target color space and the coordinates in the area subjected to the restriction on the first printer color space; and performing a color conversion processing in which image data for a target having color information represented by the coordinates on the target color space is converted into image data for a printer having color information represented by the coordinates in the area subjected to the restriction on the first printer color space in accordance with the combined profile.