Title:
色変換装置、画像形成装置、色変換方法、コンピュータプログラム及び記録媒体
Document Type and Number:
Japanese Patent JP4067532
Kind Code:
B2
Abstract:
In a color converting device for converting input image data based on a plurality of first color components (the number of bits of each color component is k) into output image data based on plural of second color components by interpolation processing using a 3DLUT storing color correction values at grid points obtained by dividing a color space composed of the plurality of first color components, the distance of the grid points is 2n (where n is an integer smaller than k), the number Dn of grid points of the plurality of first color components is an integer satisfying 2m-1+12m+1, and m=k-n), and input image data is converted into output image data by converting each color component data of the input image data according to the number of grid points, and performing interpolation processing by reading color correction values corresponding to the converted color components from the 3DLUT.
Inventors:
Makio Goto
Furuichi-dake
Furuichi-dake
Application Number:
JP2005049545A
Publication Date:
March 26, 2008
Filing Date:
February 24, 2005
Export Citation:
Assignee:
Sharp Corporation
International Classes:
H04N1/46; G06T1/00; H04N1/56; H04N1/60
Domestic Patent References:
| JP8138030A | ||||
| JP2001008044A | ||||
| JP2001285630A | ||||
| JP10191090A |
Attorney, Agent or Firm:
Nobuo Kono
Hideno Kono
Hideno Kono