Patent ID: 8306321
Filing Date: 2012-11-06
Classification: H04N

Abstract:
1. A method of processing input image data in an image processing apparatus, comprising: dividing a block of a prescribed size of said input image data into a plurality of areas; calculating, for each of said divided areas, a representative color of said area; and representing said block as output data including a color palette indicating said representative color and information indicating the area to which each pixel in said block belongs, and outputting the output data; wherein at said step of dividing into areas, for each block of said input image data, the number of areas after division of said block is determined, and the block is divided into the determined number of areas; at said step of dividing into areas, each said block of said input data is divided by selecting one mode from at least two different types of modes including a first mode of dividing into a prescribed number of areas and a second mode of dividing into areas larger in number than said first mode; and at said step of outputting, said output data, in which each of representative colors in said second mode is represented by a smaller amount of data than each of representative colors in said first mode, is output.