Image encoding/decoding device, image encoding/decoding program and image encoding/decoding method

摘要

An image encoding device having a high rate of compression and a matching image decoding device are to be provided. The encoding device for encoding signals of images comprises an image conversion module for converting the direction of the images, one or a plurality of encoding modules for encoding the images unconverted in the direction and images converted in the direction, and a mode selector module for comparing the quantity of codes in the encoded unconverted images and the quantity of codes in the encoded converted images, selecting codes smaller in the quantity of codes, and outputting the selected codes and an identifier for identifying the selected codes.