| 摘要 |
The present invention provides a color matching method for a digital image comprising a step of extracting signals of a plurality of main colors in the digital image; a step of transformation for generating a 3x3 color matrix from the signals of the plurality of main colors and transforming the signals of the plurality of main colors into a 3x1 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 a step of color-difference calculation 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 said color difference is smaller than a predetermined threshold value.
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