1. A method of processing a compressed representation of an image block comprising multiple image elements, said compressed representation comprising at least two color codewords, and said method comprising the steps of: determining at least two color values based on said at least two color codewords; for at least one image element in said image block: providing color weights assigned to said at least or; image element, based only on a position of said image element within said image block, and calculating a color representation based on said provided color weights and said determined at least two color values.