Video encoding method using offset adjustment according to classification of pixels by maximum encoding units and apparatus thereof, and video decoding method and apparatus thereof

摘要

The present invention relates to a video encoding method using an offset adjustment according to classification of pixels by maximum encoding units and a video decoding method. The present invention relates to the video encoding method including the steps of: determining an offset parameter comprising an offset type indicating whether the pixel value classification method of the present maximum encoding unit is an edge type or a band type, an offset class indicating an edge direction or a band range, and an offset value indicating difference values among recovery pixels and original pixels according to each maximum encoding unit; and outputting the offset merging information indicating whether the left side of the present maximum encoding unit or the offset parameter of the upper maximum encoding unit is adopted as an offset parameter of the present maximum encoding unit.