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:
Oct. 09, 2012
Filed:
Oct. 01, 2009
Aleksandr Movshovich, Santa Clara, CA (US);
Katherine Kuan, Sunnyvale, CA (US);
Oscar Ayzenberg, Cupertino, CA (US);
Aleksandr Movshovich, Santa Clara, CA (US);
Katherine Kuan, Sunnyvale, CA (US);
Oscar Ayzenberg, Cupertino, CA (US);
CSR Technology Inc., Sunnyvale, CA (US);
Abstract
Adaptive contrast enhancement of image data is provided. In one embodiment a method for adaptive contrast enhancement includes receiving image data for a first frame, determining a pixel distribution for at least one color space component of the first frame based on luminance values of the pixels in the at least one color space and calculating an average picture level in the at least one color space based on the pixel distribution. The method additionally includes adjusting a look-up table (LUT) associated with the pixel distribution based on the average picture level, converting luminance values of the pixels in the first frame in the at least one color space based on the LUT to generate an enhanced image frame and outputting the enhanced image frame.