huanyuan.m

来自「vc实现图像压缩编程」· M 代码 · 共 23 行

H=[0 0.3536 0.7071 0.3536 0 0];
G=[0 0.1768 0.3536 -1.0607 0.3536 0.1768];
for m1=1:141
    Dhh(m1,:)=conv2(Xhh(m1,:),H);
    Dhg(m1,:)=conv2(Xhg(m1,:),G);
    Dgh(m1,:)=conv2(Xgh(m1,:),H);
    Dgg(m1,:)=conv2(Xgh(m1,:),G);
end
Fh=Dhh+Dhg;
Fg=Dgh+Dgg;
for n1=1:264
    fh=Fh(:,n1)';
    Eh(:,n1)=conv2(fh,H)';
    fg=Fg(:,n1)';
    Eg(:,n1)=conv2(fg,G)';
end
F=Eh+Eg;
F=F*0.4;
 figure
 image(F)
 colormap(map)
 axis([0 528 0 290])
 axis off