Title:
画像処理装置、画像処理方法、およびプログラム。
Document Type and Number:
Japanese Patent JP5623473
Kind Code:
B2
Abstract:
The prior art has such a problem that image quality degrades because dots are conspicuous in the case where the size of each dot is not so small and the black or white dots are regularly aligned, in particular, in a bright part close to white or in a dark part close to black. It is determined whether a black or white pixel exists at a point-symmetric position with respect to a notice pixel using pattern matching for a binarized image and in the case where a pixel exists at the point-symmetric position, the notice pixel is replaced with a specific output pattern.
Inventors:
山田 道彦
Application Number:
JP2012170742A
Publication Date:
November 12, 2014
Filing Date:
August 01, 2012
Export Citation:
Assignee:
キヤノン株式会社
International Classes:
H04N1/409; B41J2/52; G06T1/00; G06T5/00; H04N1/387; H04N1/403
Attorney, Agent or Firm:
Patent business corporation A valley and Abe patent firm