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:
Oct. 02, 2012
Filed:
Sep. 15, 2009
Applicant:
Yuka Kihara, Kanagawa, JP;
Inventor:
Yuka Kihara, Kanagawa, JP;
Assignee:
Ricoh Company, Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Encoding information is assigned to each block according to a position of the block in an image of the color image data. An image analyzing unit analyzes the block and outputs a feature value. A block determining unit determines whether the block is an embedding-possible block based on the feature value and demarcates a watermark embedding area in the embedding-possible block. An embedding unit embeds the watermark information by deforming the watermark embedding area according to a pattern that represents the watermark information and replacing a pixel in the watermark embedding area with another pixel near the pixel to be replaced.