Patent ID: 8244033
Filing Date: 2012-08-14
Classification: H04N

Abstract:
1. An image encoding apparatus for encoding image data in which one pixel is expressed by a plurality of bits to have blocks each including m×n pixels as a unit, and generating encoded data having a fixed length of L bits, which are not more than m×n bits, per block, said apparatus comprising: an input unit which inputs image data for respective blocks; an extraction unit which extracts representative colors C a generating unit which generates identification data of m×n bits by assigning 1 bit indicating one of the representative colors C a memory unit which stores pattern data used to, when the number of bits required to specify the representative colors C a determination unit which determines, according to the pattern data stored in said memory unit, which of identification data elements approximate to the representative color C a correcting unit which corrects non-deletion target identification data which are located near deletion positions, according to the determination result of said determination unit; a deletion unit which deletes the {N+1} identification data elements from m×n identification data elements after correction by said correcting unit, with reference to the pattern data stored in said memory unit; and an output unit which couples data indicating the representative colors C