The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 2015
Filed:
Jul. 17, 2013
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Michihiko Yamada, Tsukubamirai, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 15/02 (2006.01); H04N 1/405 (2006.01); H04N 1/40 (2006.01);
U.S. Cl.
CPC ...
G06K 15/1843 (2013.01); H04N 1/40018 (2013.01); H04N 1/40068 (2013.01); H04N 1/405 (2013.01);
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.