White point estimation using color by convolution

Details White point estimation using color by convolution White point estimation using color by convolution

2007-04-03

2007-04-03

Patel, Kanjibhai (Department: 2624)

Image analysis

Color image processing

Color correction

C382S162000, C382S272000, C382S274000, C348S223100

Reexamination Certificate

active

10120180

ABSTRACT:
The probability of a chromaticity being a white point of image scene illumination is estimated by convolving a chromaticity histogram with a function of log probability distribution of chromaticities under an illuminant.

REFERENCES:
patent: 5485284 (1996-01-01), Shono et al.
patent: 5815291 (1998-09-01), Shono et al.
patent: 6038339 (2000-03-01), Hubel et al.
patent: 2002/0167615 (2002-11-01), Spitzer et al.
patent: 2003/0035156 (2003-02-01), Cooper
patent: 2003/0053690 (2003-03-01), Trifonov et al.

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