BILDVERARBEITUNGSPROZESSOR, BILDVERARBEITUNGSPROGRAM UND BILDVERARBEITUNGSVERFAHREN

摘要

An image processor is provided which simplifies filter processing and increases the speed when an image is decoded, and is suitable for realizing effective screen effect. In deblocking filter processing, as to a pixel array intersecting a boundary between adjacent blocks, pixel values v2' to v7' after filtering are computed by filter arithmetic equations as shown below. <DF>v2' = (v2+v5)/2+(v2-v5)/4 </DF> <DF>v3' = (v3+v5)/2+(v3-v5)/8 </DF> <DF>v4' = (v4+v5)/2 </DF> <DF>v5' = (v5+v4)/2+(v5-v4)/8 </DF> <DF>v6' = (v6+v4)/2+(v6-v4)/4 </DF> <DF>v7' = (v7- (v7-v4)/8 </DF> <IMAGE>