Title:
COLOR PROCESSING METHOD, COLOR PROCESSING DEVICE, IMAGE FORMING DEVICE, AND COLOR CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/050577
Kind Code:
A1
Abstract:
In order to obtain color reproduction results having a greater color reproduction range and excellent gradation properties, in color conversion having limited ink amounts, a color processing method is provided that obtains a first output value having applied thereto a limit to which upper limits for C, M, Y, and K total ink amounts are provided relative to an input value, and obtains the ink amount (second output value) for each color on the basis of a first information for correcting the first output value and the non-linear relationship between the ink amount and the gradation, for each color. Said method has: a step (S2) in which a second value is obtained on the basis of a sample input value (first value) and the first information; a step (S3) in which a third value is obtained on the basis of the second value and limit information; a step (S4) in which a fourth value corresponding to the first output value is obtained on the basis of the third value and a second information having the I/O characteristics of the first information inverted; a step (S6) in which a multi-dimensional table indicating the correspondence between the first value and the fourth value is created; and a step in which the first output value is obtained on the basis of the input value and the multi-dimensional table.
Inventors:
HIRAMOTO KENICHIROU (JP)
MIZUTANI TOSHIYUKI (JP)
MIZUTANI TOSHIYUKI (JP)
Application Number:
PCT/JP2013/074609
Publication Date:
April 03, 2014
Filing Date:
September 12, 2013
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
International Classes:
B41J2/525; B41J2/52; H04N1/46; H04N1/60
Foreign References:
| JP2012049823A | 2012-03-08 | |||
| JP2000025274A | 2000-01-25 | |||
| JP2008118188A | 2008-05-22 |
Attorney, Agent or Firm:
KOYO INTERNATIONAL PATENT FIRM (JP)
Patent business corporation Mitsuaki international patent firm (JP)
Patent business corporation Mitsuaki international patent firm (JP)
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