IMAGE RESTORATION DEVICE, IMAGE RESTORATION METHOD, AND IMAGE RESTORATION PROGRAM

摘要

After an image block consisting of a predetermined number of pixels is subjected to an orthogonal conversion, code data of the sequential method obtained by high-efficiency encoding is used to perform an image restoration process on the DC code data among the code data and display an image in a DC decoding unit consisting of a DC decoding unit (11A), a DC reverse quantization unit (12A), and DC reverse DCT unit (13A). After this, an AC decoding unit consisting of an AC decoding unit (11B), an AC reverse quantization unit (12B), and an AC reverse DCT unit (13B) adds AC code data to the DC code data, thereby performing an image restoration process and displaying an image. While using code data of the widespread ordinary sequential method, it is possible to obtain the effect similar to the image display effect obtained by the data structure of the progressive method and successively display an image with high accuracy.