Method and apparatus for white balancing digital images

Details Method and apparatus for white balancing digital images Method and apparatus for white balancing digital images

2011-01-25

2011-01-25

Bhatnagar, Anand (Department: 2624)

Image analysis

Image enhancement or restoration

C345S589000, C348S223100

Reexamination Certificate

active

07876970

ABSTRACT:
At least one illuminant white point estimate is determined in a color space having radially defined saturation based on a reference image. A chromatic adaptation correction vector (CACV) is determined based on the at least one illuminant white point estimate. Corrected pixels are obtained by applying the CACV (preferably in a cone response color space using a correction matrix based on the CACV) to uncorrected image pixels corresponding to a target image, which may comprise the reference image or another image.

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