IMAGE ENCODING METHOD AND IMAGE DECODING METHOD

摘要

There are provided an image encoding method and an image decoding method capable of improving the image quality of the decoded image while significantly reducing the code Amount. The image encoding method includes an encoding step (S102) for encoding the input image so as to generate a code string including the encoded input image; a decoded image generation step (S104) for decoding the encoded input image so as to generate a decoded image; and a parameter generation step (S106, S108) for performing a processing based on the frequency for at least one of the input image and the decoded image so as to generate a parameter for approximating the decoded image to the input image according to the processing.