ENCODER, DECODER, ENCODING METHOD AND DECODING METHOD Russian patent published in 2023 - IPC H04N19/105 H04N19/182 H04N19/577 H04N19/176 

FIELD: means for image encoding.

SUBSTANCE: total sum of the absolute values of the sums of the horizontal gradient values, respectively, for pairs of relative pixel positions is retrieved, as a first parameter. The total sum of the absolute values of the sums of the vertical gradient values, respectively, for pairs of relative pixel positions is retrieved, as a second parameter. The total sum of horizontally related pixel difference values, respectively, for pairs of relative pixel positions is retrieved, as a third parameter. The total sum of vertically related pixel difference values, respectively, for pairs of relative pixel positions is retrieved, as a fourth parameter. The total sum of vertically related sums of horizontal gradient values, respectively, for pairs of relative pixel positions is retrieved, as a fifth parameter. Prediction image is generated, which is to be used to encode the current block using the first, second, third, fourth and fifth parameters.

EFFECT: increase of efficiency of image encoding.

1 cl, 72 dwg