preg_mask.m

Compress an decomprres DCT=Domain Transform Coding for image.

       
        function [Mask1]=preg_mask(Mask, s_b);
        
        %pregatesc masca pentru scriere in fisierul final
        M1(1:s_b, 1:s_b)=1;
        
        for i=1:s_b,
            for j=1:s_b
                if Mask(i,j)~=0, Mask1(i,j)=M1(i,j)/Mask(i,j);
                else Mask1(i,j)=0;
                 end
            end
        end
        Mask1=Mask1(:);
        Mask1=Mask1';