DEVICE AND METHOD FOR IMAGE PROCESSING Russian patent published in 2017 - IPC H04N19/124 H04N19/119 H04N19/44 

FIELD: information technology.

SUBSTANCE: image processing device comprises a circuit adapted to decode the bit stream to generate quantized data; to set, on the basis of the flag determining the presence of a difference quantization parameter, the current quantization parameter for the current coded block formed by block division in which the largest coding block is recursively divided to smaller coding blocks; and inverse quantizing of the said quantized data generated based on the set current quantization parameter.

EFFECT: prevented subjective image quality deterioration for decoded image.

12 cl, 43 dwg