IMAGE ENCODING DEVICE, METHOD FOR IMAGE ENCODING, PROGRAM FOR IT, IMAGE DECODING DEVICE, METHOD FOR IMAGE DECODING AND PROGRAM FOR IT Russian patent published in 2018 - IPC H04N19/50 H04N19/119 

FIELD: image processing means.

SUBSTANCE: invention relates to image encoding means. Device comprises: separation component configured to split an input image into a plurality of image blocks, wherein at least one of the image blocks is divided into image sub-blocks; component for determining the corresponding quantization parameters of the image subblocks; component for obtaining a first difference value between a first quantization parameter of the first sub-block of the image of the image block and a second quantization parameter of the second sub-block of the image of the image block; coding component of a first difference value and a second difference value.

EFFECT: increase the speed of encoding/decoding.

18 cl, 23 dwg