Title:
色処理装置及び方法及び記憶媒体
Document Type and Number:
Japanese Patent JP4434471
Kind Code:
B2
Abstract:
A system for adjusting the representation of a device's color gamut in color appearance space, comprising performing forward mapping of sample colors from a device-dependent space to a device-independent color appearance space to obtain forward-mapped device-independent values, obtaining mismatch values for perceived device-neutrals, each mismatch value being a difference between a forward mapped value for the device-neutral and a neutral axis of the color appearance space, and adjusting each forward-mapped device-independent value by utilizing the obtained mismatch value for each corresponding lightness level of device-neutrals in order to obtain an adjusted forward mapping. The adjusting of each forward-mapped device-independent value may be a full adjustment of each value, or a partial adjustment that is performed in either a linear or non-linear manner and that may be based on chroma, lightness, or both. The adjusted forward-mapping may be inverted with both the adjusted forward-mapping and the inverted adjusted forward-mapping being inserted into a color management module.
Inventors:
Todd Newman
Eugenio Martinez-Uriegas
Elizabeth Pilotta
Eugenio Martinez-Uriegas
Elizabeth Pilotta
Application Number:
JP2000353207A
Publication Date:
March 17, 2010
Filing Date:
November 20, 2000
Export Citation:
Assignee:
Canon Inc
International Classes:
B41J2/525; G06T1/00; H04N1/46; G09G5/02; G09G5/06; H04N1/60
Domestic Patent References:
| JP7222013A | ||||
| JP11275376A | ||||
| JP11055538A | ||||
| JP11507794A |
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu