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image compression using huff man coding
4.0
Function code = Huffman (P)
rays499543 1 0
1
image compression using dct
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clc;
clear all;
close all
I = imread('55.jpg')
% if(size(I,3)
I=rgb2gray(I);
% end
I = im2double(I);
T = dctmtx(8);
dct = @(x)T * x * T';
B = blkproc(I,[8 8],dct);
mask = [1 1 1 1 0 0 0 0
1 1 1 0 0 0 0 0
1 1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
&
rays499543 0 0
1
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