METHOD FOR ENCODING AND DECODING IMAGE, AND APPARATUS THEREOF

摘要

The present invention relates to a method for encoding and decoding an image, and an apparatus thereof. More particularly, the present invention relates to a method for encoding and decoding an image to improve image encoding efficiency, and an apparatus thereof. A method for encoding an image by using the sample adaptive offset application of an improvement hierarchy, in a method for encoding an improvement hierarchy image, includes a step of extracting the sample adaptive offset parameter of a reference hierarchy; a step of determining whether the sample adaptive offset parameter of the reference hierarchy is applied by corresponding to the improvement hierarchy; and a step of partly or totally controlling the sample adaptive offset parameter of the reference hierarchy and applying it to the improvement hierarchy and a step of correcting an sample adaptive offset applied to the improvement hierarchy.