Patent ID: 6546130
Filing Date: 2003-04-08
Classification: G06T,H04N

Abstract:
An image processing apparatus comprising:means for inputting image data, a multi-dimensional color conversion table for executing color conversion of the image data input through said input means based on present lattice point data, color distribution recognition means for recognizing a color distribution of the image data input through said input means, grouping means for grouping the color distribution recognized by said color distribution recognition means into one or more groups, and means for determining the lattice point data for said multi-dimensional color conversion table based on the groups into which the color distribution is grouped by said grouping means and the color reproduction range of an output device, wherein said color distribution recognition means divides the color space into areas and counts the number of pixels belonging to each division area, and said grouping means determines whether adjacent areas can be combined based on the counts of the adjacent areas provided by said color distribution recognition means, and groups the areas in response to the determination result.