VIDEO CODING METHOD AND APPARATUS

摘要

The present invention relates to a method for encoding/decoding an image. According to the present invention, an apparatus for encoding/decoding an image includes: an intra prediction mode determination unit which determines an encoder prediction mode, which is an intra prediction mode for a present block, by using a candidate intra-predictable mode set including intra-predictable mode candidates in an image decoding apparatus among intra prediction mode candidates; an encoding unit which encodes a residual block generated by deducting the predicted block, generated by predicting the present block according to the encoder prediction mode, from a block; a mode information generation unit which generates mode information depending on whether the encoder prediction mode can be predicted in the image decoding apparatus; and an encoded data generation unit which generates encoded data including the encoded residual block and the mode information. According to the present invention, the mode information for the intra prediction mode is selectively encoded to reduce a bit size of encoded data. Therefore, efficiency of image compression and quality of a compressed image can be increased.