test97.m

SPIHT的MATLAB源代码,希望对有需要的朋友有所帮助.

fid=fopen('lena512.raw','rb');
a=fread(fid,[512,512]);
a=a';
dwt_img=d2fldwt9_7(a,5);
imshow(dwt_img,[])
img=d2bldwt9_7(dwt_img,5);
figure
imshow(img,[])
figure
d=reshape(a-img,1,512*512);
hist(d,100)