Global white point detection and white balance for color images

Image analysis – Color image processing – Color correction

Patent

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Details

358516, G06K 900

Patent

active

060699728

ABSTRACT:
A methodology for white balancing a digital color image in its entirety without segmenting the image into sections. In one embodiment, the images (still or video) are captured and transferred to a computer, and software loaded in the computer then performs the white balancing methodology. A global white point is generated for a color image based on pixels of the image that are in a given percentile of frequency distribution, such as one that is part of a histogram. Pixel adjusting values are then computed for the image and used to white balance the entire image indiscriminately to improve its color quality.

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patent: 5619347 (1997-04-01), Taniguchi et al.
IEEE Transactions on Consumer Electronics, vol. 41, No. 3 (Aug., 1995); Automatic White Balance for Digital Still Camera.
Computer Manufacturing Systems, vol. 9, No. 1 (1996); White Balance in Inspection Systems with a Neural Network.

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