IMAGE ENCODING METHOD BASED ON PIXELS AND IMAGE DECODING METHOD BASED ON PIXELS

摘要

The pixel-based image decoding method includes a step of restoring data compressed by a decoder into one pixel value for one frame into four pixel values corresponding to a 2x2 block using a reference reconstruction technique, Reconstructing pixel values included in a block into four pixel values corresponding to blocks each having a size of 2x2 by using the reference reconstruction technique; and if the number of pixels to be reconstructed is equal to the number of pixels of the original image And repeatedly restoring each of the restored pixel values to four pixel values corresponding to a 2x2 block using the reference restoration technique.The decoder does not use the reference restoration technique when any one of the pixels to be restored has a reference pixel value in the restoring step and selects any one of the four additional pixel values corresponding to the 2x2 block And the decoder further reserves the additional pixel value in advance.;