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:
Apr. 05, 2016
Filed:
Dec. 19, 2014
Omnivision Technologies, Inc., Santa Clara, CA (US);
Changmeng Liu, Sunnyvale, CA (US);
Chengming Liu, San Jose, CA (US);
Jizhang Shan, Cupertino, CA (US);
OmniVision Technologies, Inc., Santa Clara, CA (US);
Abstract
A system for brightness-sensitive automatic white balancing of an electronic color image includes a processor and a memory with (a) brightness-specific color-weighting maps each specifying illuminant-specific auto white balance parameters, (b) brightness range definitions respectively indicating applicability range of the brightness-specific color-weighting maps, and (c) instructions for white balancing the electronic color image according to scene brightness and based upon the brightness-specific color-weighting maps. A system for adaptive automatic white balancing of an electronic color image includes a processor and a memory having (a) a color-weighting map specifying a probability distribution of color ratios defining auto white balance parameters, the probability distribution composed of a plurality of illuminant-specific probability distributions respectively associated with a plurality of different spectral types of illuminant, and (b) instructions for processing one or more electronic color images to refine at least one of the plurality of illuminant-specific probability distributions.