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:
Aug. 26, 2008
Filed:
Apr. 28, 2005
Wen-hsuan Hsieh, Lowdong Town, TW;
Wen-Hsuan Hsieh, Lowdong Town, TW;
Quisda Corporation, Taoyuan, TW;
Abstract
Systems and methods thereof for image correction are provided in an exemplary method, an image is received and pixels therein are read. A frequency value is calculated for each of the color scale values, representing how many pixels correspond to each of the color scale values. A color-scale threshold is acquired by limiting summation of frequency values from the brightest end to the color-scale threshold being a minimum value exceeding or equaling a ratio of pixels. Lower/upper limits are acquired by respectively adding/subtracting a range value to/from the color-scale threshold. A weighted value is acquired for the pixels with pixel values between the lower color-scale limit and the upper color-scale limit. The updated image is generated by replacing pixel values between the lower limit and upper limit with the weighted value.