IMAGE DECODING APPARATUS AND METHOD, RECORDING MEDIUM, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To make it possible to appropriately perform a local control of filter processing during encoding or decoding.SOLUTION: A control information generation section 112 calculates offset values representing a moving distance and moving direction from an initial arrangement position determined on the basis of a reference point to a position (a destination) where a border of an ALF block coincides with an end of a slice to be processed. An adaptive filter processing part 113 moves a position of the ALF block on the basis of the offset values so as to align the border of the ALF block with the end of the slice to be processed. The present invention may be applied to an image processing system, for instance.