Color conversion device, information processing method and computer readable medium

1. A color conversion device comprising:

a processor serving as:

an acquisition section that acquires first color information of an image to be printed on a specific position in a first side of a recording paper and second color information of an image to be printed on a position corresponding to the specific position in a second side of the recording paper; and

a correction section that corrects the first color information and second color information acquired by the acquisition section, based on combination information on color combination of images on the corresponding positions of the first side and the second side, wherein

if color transition between the second color information before a current correcting was performed and the second color information after the current correcting is performed is not converged, the correction section corrects the first color information and the second color information again.

2. The color conversion device according to claim 1 ,

wherein the combination information includes show-through effect information for recognizing influences of a show-through effect from the first side to the second side and a show-through effect from the second side to the first side.

3. The color conversion device according to claim 2 ,

wherein the show-through effect information includes information obtained from patch images printed to overlap on the both sides of the recording paper.

4. The color conversion device according to claim 1 ,

wherein the combination information includes show-through effect restraint information for restraining a show-through effect from the first side to the second side and a show-through effect from the second side to the first side.

5. The color conversion device according to claim 1 ,

wherein the combination information includes color conversion information used as reference in color conversion of the respective sides of the first side and the second side.

6. The color conversion device according to claim 5 ,

wherein the combination information includes a 8-dimensional table storing correspondence between information of cyan, magenta, yellow, and black on the first side and information of cyan, magenta, yellow, and black on the second side.

7. The color conversion device according to claim 6 ,

wherein the color conversion information includes information for correcting gradation of at least one color of cyan, magenta, yellow, and black.

8. The color conversion device according to claim 1 ,

wherein the correction section collectively corrects the first color information and the second color information.

9. The color conversion device according to claim 1 ,

wherein the combination information that is previously associated to types of the recording paper.

10. The color conversion device according to claim 1 , further comprising:

a storage device that stores target values which are values in a uniform color space, wherein

the correction section converts the first color information and the second color information into values in the uniform color space and then corrects the converted first color information and the converted second color information to the target values.

11. A non-transitory computer readable medium storing a computer readable program for causing a computer to execute a process for color conversion, the process comprising:

acquiring first color information of an image to be printed on a specific position in a first side of a recording paper and second color information of an image to be printed on a position corresponding to the specific position in a second side of the recording paper;

correcting the acquired first color information and second color information, based on combination information on color combination of images on the corresponding positions of the first side and the second side; and

if color transition between the second color information before a current correcting was performed and the second color information after the current correcting is performed is not converged, correcting of the first color information and the second color information again.

12. The non-transitory computer readable medium according to claim 11 ,

wherein the combination information includes show-through effect information for recognizing influences of a show-through effect from the first side to the second side and a show-through effect from the second side to the first side.

13. The non-transitory computer readable medium according to claim 11 ,

wherein the combination information includes show-through effect restraint information for restraining a show-through effect from the first side to the second side and a show-through effect from the second side to the first side.

14. The non-transitory computer readable medium according to claim 11 , wherein

target values which are values in a uniform color space are stored in a storage device, wherein

the correcting includes

converting the first color information and the second color information into values in the uniform color space, and

correcting the converted first color information and the converted second color information to the target values.

15. An information processing method comprising:

acquiring first color information of an image to be printed on a specific position in a first side of a recording paper and second color information of an image to be printed on a position corresponding to the specific position in a second side of the recording paper;

correcting, by a processor, the acquired first color information and second color information, based on combination information on color combination of images on the corresponding positions of the first side and the second side; and

if color transition between the second color information before a current correcting was performed and the second color information after the current correcting is performed is not converged, correcting of the first color information and second color information again.

16. The information processing method according to claim 15 ,

wherein the combination information includes show-through effect information for recognizing influences of a show-through effect from the first side to the second side and a show-through effect from the second side to the first side.

17. The information processing method according to claim 15 , wherein the combination information includes show-through effect restraint information for restraining a show-through effect from the first side to the second side and a show-through effect from the second side to the first side.

18. The information processing method according to claim 15 , wherein

target values which are values in a uniform color space are stored in a storage device, wherein

the correcting includes

converting the first color information and the second color information into values in the uniform color space, and

correcting the converted first color information and the converted second color information to the target values.

19. A color conversion device comprising:

a processor serving as

an acquisition section that acquires first color information of an image to be printed on a specific position in a first side of a recording paper and second color information of an image to be printed on a position corresponding to the specific position in a second side of the recording paper, and

a correction section that corrects the first color information and second color information acquired by the acquisition section, based on combination information on color combination of images on the corresponding positions of the first side and the second side; and

a storage device that stores target vales which are values in a uniform color space, wherein

the correction section converts the first color information and the second color information into values in the uniform color space and then corrects the converted first color information and the converted second color information to the target values.