Patent ID: 7881526
Filing Date: 2011-02-01
Classification: H04N

Abstract:
1. A non-transitory computer readable medium storing a computer readable program executable by a computer for causing the computer to execute a process for performing color conversion processing on an input image, the process comprising: converting the input image in units of blocks into (i) pallet color information including pallet colors number of which is less than pixels included in one of the blocks and (ii) selection information used to select one of the pallet colors for each pixel; performing first color conversion on the pallet color information; selecting for each pixel, based on the selection information, one of the pallet colors of the pallet color information on which the first color conversion is performed, to restore an image; performing second color conversion on the input image, a resolution of the input image subjected to the second color conversion is higher than that of input image subjected to the first color conversion; generating an output image based on at least one of the restored image and the image subjected to the second color conversion; and judging an attribute of each region of the input image, wherein: the generating of the output image comprises selecting for each region either the restored image or the image subjected to the second color conversion in accordance with the judged attribute of the corresponding region, and the selecting of either the restored image or the image subjected to the second color conversion comprises: