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:
Jan. 05, 2016
Filed:
Dec. 11, 2013
Peking University Founder Group Co., Ltd., Beijing, CN;
Founder Mobile Media Technology (Beijing) Co., Ltd., Beijing, CN;
Ling Zhang, Beijing, CN;
Chao Guan, Beijing, CN;
Zhenhua Liu, Beijing, CN;
Gezhang Liu, Beijing, CN;
Wanyi Che, Beijing, CN;
PEKING UNIVERSITY FOUNDER GROUP CO., LTD., Beijing, CN;
FOUNDER MOBILE MEDIA TECHNOLOGY (BEIJING) CO., LTD., Beijing, CN;
Abstract
Binarization method and system for two dimensional code images is provided. Each block region has a different grayscale threshold. Thus, for each block region, whether a pixel in the block region is determined as black or white restoring process is not solely based on the grayscale value of the pixel itself, but also an average grayscale value of a predetermined area specified for a block region where the pixel locates. That is to say, when the predetermined area in which the block region locates has generally a larger grayscale value, the grayscale threshold corresponding to the block region may become larger, and vice versa. Because the grayscale threshold of a block region is closely related to grayscale values in a background of this block region, external circumstance interference may be prevented from an obtained binary result, producing a clear binary image accordingly.