Patent ID: 8126053

Claim:
An image encoding method comprising: generating a first residue block of each of a plurality of color component images of an input image, the first residue block corresponding to a difference between an input pixel block and a prediction pixel block of the each of the color component images; encoding the first residue block of a first color component image among the color component images; reconstructing the encoded first residue block of the first color component image; generating a second residue block of each of at least one of remaining color component images which does not comprise the first color component image by predicting a residue of the each of the at least one of the remaining color component images using the reconstructed first residue block of the first color component image; and generating a third residue block of the each of the at least one of the remaining color component images by calculating a difference between the first and second residue blocks of the each of the at least one of the remaining color component images.