Method and apparatus for correcting white balance, method...

Details Method and apparatus for correcting white balance, method... Method and apparatus for correcting white balance, method...

2006-12-05

2006-12-05

Wu, Jingge (Department: 2624)

Image analysis

Color image processing

Color correction

C382S166000, C358S518000, C348S223100

Reexamination Certificate

active

07146041

ABSTRACT:
The white balance correction method and apparatus estimate a color temperature of a photographing light source with which a color image has been taken by using at least gray and/or skin color information contained in an input color image and correct image signals of the color image based on the estimated color temperature. The density correction method multiplies image signals of respective pixels in an input color image by set coefficients to detect pixels having the multiplied image signals in the vicinity of a blackbody locus curve of skin color as skin color candidate pixels and assigns an average obtained for predetermined color signals from the skin color candidate pixels detected to a predetermined density of a color corresponding to the color signals on a print. The recording medium on which one or both of the white balance correction method and the density correction method are recorded in a computer-readable manner as a program to be executed by a computer.

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