Method for statistical analysis of images for automatic...

Details Method for statistical analysis of images for automatic... Method for statistical analysis of images for automatic...

2007-03-13

2007-03-13

Ho, Tuan (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S224100

Reexamination Certificate

active

10161439

ABSTRACT:
A process for performing white balancing of an image is performed by subdividing an image into a plurality of subframes, and then analyzing each subframe to determine if that subframe is predominantly monochromatic other than gray. If so, that subframe is excluded from the computation of the gain adjustments in the white balancing operation. As a result, the white balance process is performed using only the multicolored and/or gray subframes, thus allowing the overall white-balance of the image to be shifted only when a change in the color average is due to a change in the spectra of illumination, and not a presence of large monochromatic areas in the image.

REFERENCES:
patent: 5010393 (1991-04-01), Saito
patent: 6421083 (2002-07-01), Takakura
patent: 6791606 (2004-09-01), Miyano
patent: 2004/0057615 (2004-03-01), Johannesson et al.
patent: 2005/0134702 (2005-06-01), Subbotin

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