COLOR MATCHING METHOD AND IMAGE CAPTURING DEVICE

PROBLEM TO BE SOLVED: To provide a color matching method for a digital image. SOLUTION: A color matching method for a digital image comprises steps of: extracting signals of a plurality of main colors in the digital image; transformation for generating a 3×3 color matrix from the signals of the plurality of main colors and transforming the signals of the plurality of main colors 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, which are referred to as Lab coordinates; and color-difference calculation step for recursively calculating an output value and color difference of the plurality of the color signals by performing an iteration operation based on an equation composed of the color matrix, a predefined weighting matrix and a fine-tuning matrix, until color difference is smaller than a predetermined threshold value. COPYRIGHT: (C)2008,JPO&INPIT