Title:
色変換テーブルの作成装置、色変換テーブルの作成方法、色変換処理装置、色変換処理方法およびプログラム
Document Type and Number:
Japanese Patent JP6840604
Kind Code:
B2
Abstract:
A generating device that generates a first color conversion LUT for converting an input image signal value into an output value of an actual color material installed in an image forming device, includes: an acquiring unit that acquires grid point position information indicating positions of the grid points in the first color conversion LUT; and a generating unit that generates the first color conversion LUT on the basis of grid point position information, wherein the generating unit determines whether or not an inflection point of an output value of the actual color material is at a position of the grid point, corrects at least some output values for at least two actual color materials in the second color conversion LUT in accordance with a determination result, and generates the first color conversion LUT obtained by thinning out the grid points in the second color conversion LUT.
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Inventors:
Takashi Ochiai
Morie Masahide
Morie Masahide
Application Number:
JP2017078367A
Publication Date:
March 10, 2021
Filing Date:
April 11, 2017
Export Citation:
Assignee:
Canon Inc
International Classes:
H04N1/46; G06T1/00
Domestic Patent References:
| JP2004023739A | ||||
| JP2004001462A | ||||
| JP2005047187A |
Attorney, Agent or Firm:
Patent Business Corporation Tani/Abe Patent Office