用哈夫曼技术来 对一个存在的文件进行压缩 以及对压缩文件进行解压-Huffman used the existence of a technology to compress the file and unzip compressed files

clc close all clear all I=imread( desert.jpg ) [r c]=size(I) bs=16 Block Size (8x8) nob=(r/bs)*(c/bs) Total number of 8x8 Blocks Dividing the image into 8x8 Blocks kk=0 for i=1:(r/bs) for j=1:(c/bs) Block(:,:,kk+j)=I