Color coefficient apparatus, color reproduction device, and computer readable medium storing program

A color reproduction characteristic modifying device comprising:

• a first obtaining unit that obtains a first color reproduction characteristic that is obtained by correcting a color reproduction characteristic of a first device in accordance with a color of a first medium used for printing in the first device;
• a second obtaining unit that obtains the first color reproduction characteristic on which a preceding modification has been performed;
• a third obtaining unit that obtains a color reproduction characteristic in a result of simulated printing that is based on the color reproduction characteristic of the first device performed in a second device using a color conversion coefficient that is generated on the basis of the first color reproduction characteristic on which the preceding modification has been performed and a second color reproduction characteristic that is obtained by correcting a color reproduction characteristic of the second device in accordance with a color of a second medium used for printing in the second device;
• a correcting unit that does not correct the first color reproduction characteristic on which the preceding modification has been performed and which has been obtained by the second obtaining unit in accordance with the color of the first medium and that corrects the color reproduction characteristic in the result of the simulated printing obtained by the third obtaining unit in accordance with the color of the second medium;
• a calculating unit that calculates a difference between the first color reproduction characteristic obtained by the first obtaining unit and the color reproduction characteristic obtained by correcting, with the correcting unit, the color reproduction characteristic in the result of the simulated printing;
• and
• a modifying unit that modifies the first color reproduction characteristic on which the preceding modification has been performed and which has not been corrected by the correcting unit in accordance with the color of the first medium on the basis of the difference calculated by the calculating unit.

A non-transitory computer readable medium storing a program causing a computer to execute a process, the process comprising:

• obtaining a first color reproduction characteristic that is obtained by correcting a color reproduction characteristic of a first device in accordance with a color of a first medium used for printing in the first device;
• obtaining the first color reproduction characteristic on which a preceding modification has been performed;
• obtaining a color reproduction characteristic in a result of simulated printing that is based on the color reproduction characteristic of the first device performed in a second device using a color conversion coefficient that is generated on the basis of the first color reproduction characteristic on which the preceding modification has been performed and a second color reproduction characteristic that is obtained by correcting a color reproduction characteristic of the second device in accordance with a color of a second medium used for printing in the second device;
• not correcting the first color reproduction characteristic on which the preceding modification has been performed and correcting the color reproduction characteristic in the result of the simulated printing in accordance with the color of the second medium;
• calculating a difference between the first color reproduction characteristic that is obtained by correcting the color reproduction characteristic of the first device in accordance with the color of the first medium and the color reproduction characteristic obtained by correcting the color reproduction characteristic in the result of the simulated printing;
• and
• modifying the first color reproduction characteristic on which the preceding modification has been performed and which has not been corrected in accordance with the color of the first medium on the basis of the calculated difference.