jpeg_dzz8.m

klt经典程序

function y=jpeg_Dzz(x)
t=1;
for k=2:9
    for m=1:k-1
        if rem(k,2)==0
            y(k-m,m)=x(t);
            t=t+1;
        else
            y(m,k-m)=x(t);
            t=t+1;
        end
    end
end
for k=10:16
    for m=k-8:8
        if rem(k,2)==0
            y(k-m,m)=x(t);
            t=t+1;
        else
            y(m,k-m)=x(t);
            t=t+1;
        end
    end
end