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.:

US 7324704 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 29, 2008

Filed:

Sep. 11, 2003
Applicants:

Yan-ru Jiang, Beijing, CN;

Po-chiang Yeh, Beijing, CN;

Rui-jing Dong, Beijing, CN;

Inventors:

Yan-Ru Jiang, Beijing, CN;

Po-Chiang Yeh, Beijing, CN;

Rui-Jing Dong, Beijing, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/40 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of repairing scratches in a digital image includes counting the number of abnormal pixels among neighboring pixels of a selected pixel. The selected pixels that are surrounded by abnormal pixels in a number greater than a predetermined value are designed as particular pixels. An area surrounding each particular pixel is divided into a plurality of blocks. Furthermore, brightness difference between two of the blocks are calculated. Scratch pixels are found from the particular pixels based on brightness difference between blocks. Then, an area surrounded by scratch pixels are subdivided and filled up. Thereby, the scratch pixels can be precisely found and repaired without the need of hardware.


Find Patent Forward Citations

Jiang, Yan-Ru. (2008). Method of repairing scratches in digital images (U.S. Patent No. 7324704). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7324704

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