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:
Nov. 20, 2012
Filed:
Jun. 05, 2008
Yuki Matsumoto, Kawasaki, JP;
Yuki Matsumoto, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image, in which a character image and a photographic image are mixed, is efficiently encoded while preventing image quality deterioration. Hence, image data including foreground pixels and background pixels is input. In the image data, first image data is generated by setting a pixel value that does not occur as the foreground pixel to the pixel value of the background pixel based on the histogram of pixel values that occur as foreground pixels, and the first image data is encoded. In the image data, second image data is generated by setting a value based on the pixel value of the background pixel to the pixel value of the foreground pixel, and the second image data is encoded.