APPARATUS AND METHOD FOR FAST SAMPLE ADAPTIVE OFFSET FILTERING BASED ON CONVOLUTION METHOD

摘要

Disclosed herein is an apparatus for fast Sample Adaptive Offset filtering based on a convolution method, for decoding of a video. According an embodiment, the apparatus may include: an input stream provider for sequentially providing a window buffer with pixels read from a buffer that stores input data related to an SAO filter; a window buffer for defining the provided pixels as one or more windows, and for delivering the pixels on a defined window basis to one or more calculation logics; and one or more calculation logics for calculating an offset for the pixels input on the window basis, and for outputting a corrected pixel by adding the calculated offset to a target pixel.