Color matching method, and image capturing device and...

Details Color matching method, and image capturing device and... Color matching method, and image capturing device and...

2007-09-27

2010-12-28

Ahmed, Samir A. (Department: 2624)

Image analysis

Color image processing

Color correction

C382S162000, C382S164000, C382S165000, C382S166000, C382S274000, C348S222100

Reexamination Certificate

active

07860307

ABSTRACT:
A color matching method for a digital image. Signals of a plurality of main colors in the digital image are extracted and the extracted signals are used to generate a 3×3 color matrix. The signals of the plurality of main colors are transformed into a 3×1 input matrix formed by the intensity of illumination, the color hue, and the color saturation of each of the color signals. An output value and color difference of the plurality of the color signals are recursively calculated by performing an iteration operation based on an equation composed of the color matrix, a predefined weighting matrix and a fine-tuning matrix, until the color difference is smaller than a predetermined threshold value.

REFERENCES:
patent: 7489346 (2009-02-01), Mizukura et al.
patent: 7671898 (2010-03-01), Chiba
patent: 2006/0012808 (2006-01-01), Mizukura et al.

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