Patent ID: 6724935
Filing Date: 2004-04-20
Classification: G06T,H04N

Abstract:
A color image processing apparatus which executes color conversion processing on an input image data expressed in first color space, and outputs an output image data expressed in second color space, comprising:LUT means for storing color conversion LUT data that is referred to at the time of color conversion processing; storing means for storing a first lattice point color coordinates data equivalent to lattice point address of the color conversion LUT data; color tone instruction means for inputting instruction information instructing color tone changes that have been set beforehand in accordance with a specified conditions; color adjustment parameter composition means for composing color adjustment parameters in accordance with the instruction information input from the color tone instruction means; color adjusting means for color adjusting the first lattice point color coordinates data stored in the storage means with the color adjustment parameter composed by the color adjustment parameters composition means, so as to output a second lattice point color coordinates data; unadjusted color conversion means for converting the second lattice point color coordinates data output from the color adjustment means into the second lattice point color coordinates data expressed in the second color space; color conversion LUT renewal means for renewing the color conversion LUT data stored by the LUT means in accordance with the second lattice point color coordinates data converted by the unadjusted color conversion means; and color conversion means for converting the input image data expressed in the first color space to the output image data expressed in the second color space in accordance with the color conversion LUT data renewed by the color conversion LUT renewal means.