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:
Jun. 23, 2015
Filed:
May. 30, 2013
Canon Kabushiki Kaisha, Tokyo, JP;
Wakako Tanaka, Inagi, JP;
Hirokazu Tanaka, Inagi, JP;
Tetsuya Edamura, Inagi, JP;
Kiichiro Takahashi, Yokohama, JP;
Yusuke Komano, Yokohama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
Textures in a printed image are reduced with a configuration that, provided that a matrix made up of a plurality of dot arrangement patterns is treated as a unit, binarizes image data is repeatedly applying such a matrix to the image data. Specifically, when a shift value K=k, a shift process calculates X+kY for the position (X, Y) of each cell in a 4×4 base matrix. The dot arrangement patterns are then shifted overall such that the cell where the value is k from among these values moves to the position (0, 0). The shift process is conducted while setting different shift values for every repeated use of the base matrix. As a result, regular textures are decreased in the case of using a base matrix made up of a gradation value Lv1 on a pixel area.