A method and system for improving the quality of a video image (100) segmented into a plurality of blocks (110, 115, 120) of known size is disclosed. The method comprises the steps of associating a value to each of said blocks and altering said associated value corresponding to a selected one of said blocks when each of said associated values of blocks adjacent to said selected block is different than said selected block associated value. The block value is a first value when said block probability function is greater than a threshold value, otherwise it a set as a second value.