White balance correction using illuminant estimation

Details White balance correction using illuminant estimation White balance correction using illuminant estimation

2006-12-15

2011-11-01

Ometz, David (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

Reexamination Certificate

active

08049789

ABSTRACT:
A method and apparatus for white balance correction using illuminant estimation includes calculating a weighted average of the color coordinates of points in a color image to determine an estimated illuminant of the color image in the color space of an image sensor and selecting white balance correction factors for the color image using the estimated illuminant of the color image and color coordinates of one or more of a number of reference illuminant points in the color space of the image sensor.

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