Provided are a video encoding method and a video encoding apparatus capable of performing the video encoding method. The video encoding method according to an embodiment includes generating a first predicted block by performing intra prediction on a current block by using neighboring pixels of the current block which have been previously encoded and reconstructed; determining a reference block corresponding to the current block and included in a reconstructed pixel region encoded and reconstructed prior to the current block; generating a residual block, based on the reference block; generating a second predicted block by adding residual values of pixels included in the residual block and intra prediction values of pixels included in the first predicted block; determining the first predicted block or the second predicted block to be a predicted block of the current block; and generating a bitstream including residual data of the current block generated from the determined predicted block.