Patent ID: 7940434

Claim:
An image processing apparatus comprising: an interpolating section for generating interpolated image data of a second color system, corresponding to inputted image data of a first color system, the inputted image data being data of an inputted image; a color space storing section for storing (i) a color space of the first color system, and (ii) image data of the second color system, corresponding to grid points set in the color space of the first color system; a rewritable memory; an area selecting section for selecting, from the color space of the first color system stored in the color space storing section, a distribution area which contains distributed grid points required for interpolating data in a gamut of the inputted image and which includes (i) the gamut of the inputted image, and (ii) an area surrounding the gamut; a data changing section for (i) reading from the color space storing section second color system image data corresponding to the grid points contained in the distribution area, and (ii) writing the second color system image data over data stored in the memory; a position information changing section for writing in the memory a content of position information on positions, in the color space of the first color system, of the grid points contained in the distribution area; and a reading section for reading from the memory the second color system image data of the grid points corresponding to the inputted image data of the first color system, by referring to the position information, the interpolating section performing an interpolation operation with the second color system image data read by the reading section, so as to generate interpolated image data of the second color system, corresponding to the inputted image data of the first color system.