Image processing apparatus and control method thereof

An image processing method to be executed by an image processing apparatus, comprising:

• obtaining image data;
• obtaining first color conversion information applicable to the image data;
• dividing the image data into a plurality of region data;
• correcting the first color conversion information to generate second color conversion information;
• and
• applying, to each of the plurality of region data, color conversion processing based on one of the first color conversion information and the second color conversion information,
• wherein in the correcting, for each of the plurality of region data, if a color difference between a third color and a fourth color obtained by converting a first color and a second color included in the region data based on the first color conversion information is smaller than a predetermined color difference, the second color conversion information is generated such that a color difference between a fifth color and a sixth color obtained by converting the first color and the second color based on the second color conversion information becomes larger than the predetermined color difference, and
• in the applying, color conversion processing based on the second color conversion information corresponding to each region data is applied to at least one region data among the plurality of region data, for which the second color conversion information is generated.

A non-transitory computer-readable recording medium storing a program that, when executed by a computer, causes the computer to perform an image processing method to be executed by an image processing apparatus, comprising:

• obtaining image data;
• obtaining first color conversion information applicable to the image data;
• dividing the image data into a plurality of region data;
• correcting the first color conversion information to generate second color conversion information;
• and
• applying, to each of the plurality of region data, color conversion processing based on one of the first color conversion information and the second color conversion information,
• wherein in the correcting, for each of the plurality of region data, if a color difference between a third color and a fourth color obtained by converting a first color and a second color included in the region data based on the first color conversion information is smaller than a predetermined color difference, the second color conversion information is generated such that a color difference between a fifth color and a sixth color obtained by converting the first color and the second color based on the second color conversion information becomes larger than the predetermined color difference, and
• in the applying, color conversion processing based on the second color conversion information corresponding to each region data is applied to at least one region data among the plurality of region data, for which the second color conversion information is generated.