Reproduction color profile correction device, reproduction color profile correction method, reproduction color profile correction program, and computer-readable medium including reproduction color profile correction program

A reproduction color profile correction method which corrects a colorimetric value of a reproduction color in a reproduction color profile, in which the reproduction color is reproduced by an ink combination including:

• a process ink combination that is a combination of control values of process inks;
• and a spot color ink combination that is a combination of control values of a spot color ink,
• the reproduction color profile correction method comprising:
• a differential colorimetric value calculator calculating a differential colorimetric value that is a difference between a predicted colorimetric value and a measured colorimetric value, the predicted colorimetric value being a colorimetric value of a predicted reproduction color corresponding to the process ink combination of the ink combination, and the measured colorimetric value being a colorimetric value obtained by measuring a reproduction color in a color chart corresponding to the process ink combination;
• and
• a colorimetric value corrector correcting, by using the differential colorimetric value, a predicted colorimetric value of a reproduction color reproduced by the ink combination.

A computer-readable medium including a reproduction color profile correction program causing a computer to function as a reproduction color profile correction system which corrects a colorimetric value of a reproduction color in a reproduction color profile, in which the reproduction color is reproduced by an ink combination including:

• a process ink combination that is a combination of control values of process inks;
• and a spot color ink combination that is a combination of control values of a spot color ink,
• the reproduction color profile correction program causing the computer to execute the reproduction color profile correction method including:
• calculating a differential colorimetric value that is a difference between a predicted colorimetric value and a measured colorimetric value, the predicted colorimetric value being a colorimetric value of a predicted reproduction color corresponding to the process ink combination of the ink combination, and the measured colorimetric value being a colorimetric value obtained by measuring a reproduction color in a color chart corresponding to the process ink combination;
• and
• correcting, by using the differential colorimetric value, a predicted colorimetric value of a reproduction color reproduced by the ink combination.