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:
May. 27, 2014
Filed:
Aug. 21, 2009
Applicant:
Xiaoyan Dai, Yokohama, JP;
Inventor:
Xiaoyan Dai, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/62 (2006.01);
U.S. Cl.
CPC ...
Abstract
Illumination information indicating the center of illumination and lightness change direction is acquired from an image, and the image is divided into regions for respective colors based on the acquired illumination information and color information of respective pixels included in the image. Especially, thresholds in clustering are set step by step in accordance with the lightness change direction from the center of the illumination information, and the image is clustered to the regions for respective colors according to the thresholds which are set step by step.