untitled4.asv

用matlab所撰寫的huffman code,裡面沒有使用matlab內建的函示,完全自己撰寫而成,使和初學者練習參考使用.

clc;
load clown
image(X);
colormap(map);
data = reshape(X,320*200,1);
n = imhist(X,map);
n = n./64000;
(-1)*sum(n.*log2(n))
symbols = [1:81];
[dict,avglen] = huffmandict(symbols,n)
comp = huffmanenco(data,dict);
dsig = huffmandeco(comp,dict);
a=dict-data
if
    a=0;