| 摘要 |
PROBLEM TO BE SOLVED: To provide an image processor that attains color adjustment and color conversion at high speed and a low cost with high accuracy. SOLUTION: This image processor is provided with an image color conversion section 10, a color conversion look-up table LUT 11, a LUT updating section 25, a differential color conversion section 31, a differential color conversion parameter generating section 32, a basic section color conversion section A 33, a basic color conversion parameter generating section 34, a color patch data extract section 35 and a basic section color conversion section B 36. The basic section color conversion section B 36 converts grating point RGB data, corresponding to all grating points addresses in the color LUT 11 stored in a grating point RGB data memory 39, into grating points, C', M', Y' data, the differential color conversion section 31 converts the grating point C', M', Y' data into grating point C, M, Y data, writes them in the color conversion LUT 11, and the color of the image data is subjected to color transformation. |
