| 摘要 |
A color converting apparatus which is used to correct the hue shift without narrowing the color reproduction region, has a small circuit scale, and does not need many memory resources. A primary area detector 10 determines to what area out of six areas classified according to the relation of magnitude of the RGB the input RGB values belong and outputs the minimum values of RGB. A border coefficient table 11 outputs a coefficient determining the border to further divide into two the six primary areas according to the parameter indicating the primary area. The coefficient and the RGB values are multiplied and then added. A comparator 12 compares the addition result with the RGB minimum values output from the primary area detector 10, and the result is input into a matrix coefficient table 13. The matrix coefficient table 13 outputs the coefficient of a matrix calculation to convert the RGB value to output R', G', B' values corresponding to the area to which the input RGB values belong according to the parameter indicating the primary area and the result of the comparison by the comparator 12.
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