Title:
COLORIMETRIC VALUE ACQUISITION METHOD, IMAGE FORMING APPARATUS AND COLORIMETRIC VALUE ACQUISITION CONTROL PROGRAM
Document Type and Number:
Japanese Patent JP2017092593
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To easily and appropriately acquire a colorimetric value for correcting a flare level of a chart.SOLUTION: After creating a scanner profile by acquiring an RGB value and an L*a*b* value by measuring, with an in-line scanner and an in-line colorimeter, all patches of a first chart in which the patches are rearranged beforehand in such a manner that a flare level is fixed, an RGB value is acquired by measuring with the in-line scanner all patches of a second chart in which the patches are rearranged beforehand in such a manner that a flare level is fixed, and an L*a*b* value is acquired by measuring a part of patches with the in-line colorimeter. An RGB value corresponding to the L*a*b* value is identified using the scanner profile, a differential between the identified RGB value and the acquired RGB value is calculated, a corrected RGB value is calculated by applying the differential to the acquired RGB value, and an estimate L*a*b* value corresponding to the corrected RGB value is acquired and outputted using the scanner profile.SELECTED DRAWING: Figure 9
Inventors:
TSUJI KOSUKE
Application Number:
JP2015217381A
Publication Date:
May 25, 2017
Filing Date:
November 05, 2015
Export Citation:
Assignee:
KONICA MINOLTA INC
International Classes:
B41J2/525; H04N1/46; G06T1/00; H04N1/60
Domestic Patent References:
| JP2013207616A | 2013-10-07 | |||
| JP2007170883A | 2007-07-05 | |||
| JPH11160152A | 1999-06-18 | |||
| JP2013207616A | 2013-10-07 | |||
| JP2007170883A | 2007-07-05 | |||
| JPH11160152A | 1999-06-18 |
Attorney, Agent or Firm:
Keiji Miyamoto