Sampling images for color balance information

Details Sampling images for color balance information Sampling images for color balance information

2003-12-23

2009-02-03

Ahmed, Samir A (Department: 2624)

Image analysis

Color image processing

Color correction

C382S199000, C348S223100, C358S518000

Reexamination Certificate

active

07486819

ABSTRACT:
Pixels from an image are sampled for auto white balance (AWB) statistics. To avoid the effects of monochromatic regions, only pixels located at or near edges between monochromatic regions and neighboring regions are sampled for computation of the AWB gains. A sampling criteria is applied to each pixel that automatically excludes pixels in monochromatic regions of any size. As a result, white balancing is based only on portions at or near edges of substantially monochromatic regions.

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