This a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN -

huffman的编码和译码程序，使用matlab编写。根据码字可生成相应码字状态转移路径图，可用来比特级软译码(The coding and decoding program of Huffman is written in MATLAB. The corresponding code word state transfer path graph can be generated according to the code word, and it can be used for bit lev