dec.m

基于MATLAB的图像压缩 能处理10:1的压缩功能 直接就能使用

function [image]=dec(code)
[code_r,code_c]=size(code);
image_r=code(1);
image_c=code(2);
image=zeros(image_r,image_c);
image(:,:)=63;
for j=1:64
    for i=1:64
        buffer(i,j)=code((j-1)*64+i+2);
    end
end
code_index=2+64*64+1;
row_numalc=0;
co_ind=1;
row_ind=0;
for code_index=2+64*64+1:2:code_c
    row_number=code(code_index);
    row_numalc=row_numalc+row_number;
    code_contain=code(code_index+1);
    if(row_numalc<image_r/2)
        image(row_ind+1:(row_ind+row_number),co_ind)=code_contain;
        row_ind=row_ind+row_number;
    else
        if (row_numalc==image_r/2)
            image(row_ind+1:(row_ind+row_number),co_ind)=code_contain;
            row_ind=0;
            co_ind=co_ind+1;
            row_numalc=0;
        else
            code_othrnum=row_numalc-image_r/2;
            code_resnum=row_number-code_othrnum;
            image(row_ind+1:(row_ind+code_resnum),co_ind)=code_contain;
            co_ind=co_ind+1;
            image(1:code_othrnum,co_ind)=code_contain;
            row_ind=code_othrnum;
            row_numalc=code_othrnum;
        end
    end
end
image(1:64,1:64)=buffer;