An encoding method may comprise obtaining a residue corresponding to a difference between the original image and a prediction image with respect to each component of the original image, encoding the residue of a predetermined component of the original image, restoring the encoded residue of the predetermined...http://www.google.ca/patents/US7469069?utm_source=gb-gplus-sharePatent US7469069 - Method and apparatus for encoding/decoding image using image residue prediction