SYSTEMS AND METHODS FOR MASK BASED PROCESSING OF A BLOCK OF A DIGITAL IMAGE

摘要

There is provided an apparatus for generating a set of transform coefficients of a block in a frame or portion thereof, comprises: a media encoder coupled to a data interface adapted to receive a frame or portion thereof, the media encoder is adapted to: designate a rotational symmetry mask having a size and a shape as the block partitioned in the frame or portion thereof for processing the block; split the block to two complementary portions using the rotational symmetry mask; generate a pair of rotational symmetry blocks each having one of the two complementary portions; and compute a transform coefficient for each member of the pair of rotational symmetry blocks.