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:
Feb. 06, 2018
Filed:
Jul. 12, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Junya Arakawa, Nagareyama, JP;
Ritsuko Otake, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An information processing method includes determining, in a luminance image that represents luminance components of an input image obtained by capturing a document image, a shaded region affected by shade and a specific pixel region including specific pixels less affected by the shade through a color of an object in the document image by using the luminance components of pixels of the luminance image, and generating a shade image that represents shade components of the input image by referring to pixel values of pixels adjacent to the specific pixels and repeating replacement processing of replacing a pixel value of each of the specific pixels with a value of the shaded region adjacent to the specific pixel until the specific pixel region disappears.