An image encoding method and apparatus or an image decoding method and apparatus for performing intra prediction based on at least one sample value and at least one pattern determined in association with a block

摘要

A method of encoding an image, the method comprising: determining at least one sample value associated with a first block based on a sample value of previously reconstituted reference samples, according to one embodiment; Determining at least one pattern for a form in which the samples of the first block are arranged; Generating at least one candidate prediction block for the first block based on the at least one sample value and the at least one pattern; And determining a predicted value of the samples of the first block based on one of the at least one candidate prediction block.