Title:
IMAGE FORMING APPARATUS AND METHOD
Document Type and Number:
Japanese Patent JP2006166327
Kind Code:
A
Abstract:
To apply various γ lookup tables in accordance with a picture mode desired by a user.
When a γ lookup table is generated in gradation correction in such a manner that a gradation of a high-density section is crushed, the crush is automatically detected, and corrections emphasizing the density and emphasizing the gradation are applied to the crush and two kinds of γ lookup tables are newly generated.
Inventors:
IINUMA OSAMU
Application Number:
JP2004358293A
Publication Date:
June 22, 2006
Filing Date:
December 10, 2004
Export Citation:
Assignee:
CANON KK
International Classes:
H04N1/407; B41J2/52; G03G15/01; H04N1/46; H04N1/60
Attorney, Agent or Firm:
Keizo Nishiyama
Yuichi Uchio
Yuichi Uchio