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. 08, 2012
Filed:
Aug. 13, 2008
Takashi Yamaguchi, Kawasaki, JP;
Takeo Miki, Machida, JP;
Kenji Miyazaki, Komae, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
In an image processing apparatus for creating synthetic image information by embedding sub-information in an invisible state in main image information in a visible state, attention pixels in the main image information are set, a specific pixel block is created by assigning a first specific pixel to the attention pixel of a first color and a second specific pixel to the attention pixel of a second color, first key information is selected for a first value of the sub-information constituted by binary information and second key information is selected for a second value, color difference modulation processing is performed on the selected key information based on a predetermined color difference amount, and the color-difference-modulated key information is superposed on the specific pixel block to thereby create the synthetic image information in which the sub-information in an invisible state is embedded in the main image information.