Image encoding device, image decoding device and program

Abstract

An image encoding devicethat encodes an encoding target block obtained by dividing an image, the image encoding device including: an intra predictorconfigured to predict the encoding target block through intra prediction to generate a prediction block; and a transformerconfigured to perform orthogonal transform processing on a prediction residual representing an error of the prediction block with respect to the encoding target block. The intra predictor includes: a weighted controllerconfigured to control the weighted combining processing dependent on positions of prediction pixels within the prediction block based on a type of transform to be applied in the orthogonal transform processing in the transformer; and a correctorconfigured to correct the prediction pixels by performing the weighted combining processing on reference pixels adjacent to the encoding target block and the prediction pixels.