Compress-Decompress algrithms

Development Platform:

Matlab

RLEncode.m：Code Content

							function [zipped, info] = RLEncode(vector)
[m, n] = size(vector);
%vector = vector(:)';
vector = uint8(vector(:));
L = length(vector);
c = vector(1);
e(1, 1) = c;     %e(:, 1)存放灰度
e(1, 2) = 0;     %e(:, 2)存放行程
t1 = 1;
for j = 1: L
    if((vector(j) == c))
        e(t1, 2) = double(e(t1,2)) + 1;
    else
        c = vector(j);
        t1 = t1 + 1;
        e(t1, 1) = c;
        e(t1, 2) = 1;
    end
end
zipped = e;
info.rows = m;
info.cols = n;
[m, n] = size(e);
info.ratio = m*n/(info.rows * info.cols);

						