Patent ID: 8014620
Filing Date: 2011-09-06
Classification: H04N

Abstract:
1. An image processing system comprising: an identification unit that identifies at least one second pixel among an image including a first pixel and the at least one second pixel, a pixel value of the first pixel being not to be changed and a pixel value of the at least one second pixel being to be changed; a region division unit that divides the image into a plurality of frequency regions and a plurality of frequency sub-regions within the plurality of frequency regions using a processor; a pixel value change unit that changes the value of the at least one second pixel to a value through a filtering process when the at least one second pixel identified by the identification unit is included within the plurality of frequency regions or the plurality of frequency sub-regions obtained by the region division unit, wherein the pixel value change unit is configured to switch between an output value zero norm and a local power minimum norm based on whether the first pixel is included in the plurality of frequency regions or the plurality of frequency sub-regions.