function?[absdiff?snr?psnr?imfid?mse]?=?compare（originalimg?restoredimg）
%Function?to?compare?the?original?image?with?the
%restored?image?using?some?predefined?methods
%Inputs:?originalimg?restoredimg
%Returns:?absdiff?snr?psnr?imfid?mse
%
%originalimg:??It?is?the?original?unblurred?image
%restoredimg:??It?is?the?restored?image
%absdiff:??????Average?Absolute?Difference
%snr:??????????Signal?to?Noise?Ratio?（dB）
%psnr:?????????Peak?Signal?to?Noise?Ratio?（dB）
%imfid:????????Image?Fidelity
%mse:??????????Mean?Square?Error
%
%Example:
%??????[absdiff?snr?psnr?imfid?mse]?=?compare（originalimg?restoredimg）;
%??????This?call?takes?original?image?and?the?restored?image?and?returns
%??????the?comparison?of?both?the?images?using?some?predefined?methods.

%Average?absolute?difference
%{
md?=?originalimg?-?restoredimg;
mdsize?=?size（md）;
summation?=?0;
for?i?=?1:mdsize（1）;
????for?j?=?1:mdsize（2）;
????????summation?=?summation?+?abs（md（ij））;
????end
end

absdiff?=?summation/（mdsize（1）*mdsize（2））;
%}


%Signal?to?Noise?Ratio?（SNR）
%{
md?=?（originalimg?-?restoredimg）.^2;
mdsize?=?size（md）;
summation?=?0;
sumsq=0;
for??i?=?1:mdsize（1）;
????for?j?=?1:mdsize（2）;
????????summation?=?summation?+?abs（md（ij））;
????????sumsq?=?sumsq?+?（originalimg（ij）^2）;
????end
end

snr?=?sumsq/summation;
snr?=?10?*?log10（snr）;
%}


%Peak?Signal?to?Noise?Ratio?（PSNR）
%{
md?=?（originalimg?-?restoredimg）.^2;
mdsize?=?size（md）;
summation?=?0;
sumsq=0;
for??i?=?1:mdsize（1）;
????for?j?=?1:mdsize（2）;
????????summation?=?summation?+?abs（md（ij））;
????end
end

psnr?=?size（originalimg?1）?*?size（originalimg?2）?*?max（max（originalimg.^2））/summation;
psnr?=?10?*?log10（psnr）;
%}


%Image?Fidelity

md?=?（originalimg?-?restoredimg）.^2;
mdsize?=?size（md）;
summation?=?0;
sumsq?=?0;
for??i?=?1:mdsize（1）;
????for?j?=?1:mdsize（2）;
????????summation?=?summation?+?abs（md（ij））;
????????sumsq?=?sumsq?+?（originalimg（ij）^2）;
????end
end

imfid?=?（1-summation）/sumsq;
%}


%Mean?Square?Error
%{
diff?=?originalimg?-?restoredimg;
diff1?=?diff.^2;
mse?=?mean（mean（diff1））;
%}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件???????43632??2004-09-18?06:42??GUIWelcome.fig
?????文件???????12276??2005-04-18?12:51??GUIWelcome.m
?????文件????????1582??2005-05-05?00:50??Hough（old）.m
?????文件?????????828??2005-04-16?19:12??Hough.m
?????文件????????1365??2005-04-23?17:42??Inverse.m
?????文件????????2030??2005-05-05?03:00??Lucy.m
?????文件?????????418??2005-04-23?18:46??my_closereq.m
?????文件????????1733??2005-05-05?02:49??Wiener.m
?????目錄???????????0??2005-12-16?12:42??Help\
?????目錄???????????0??2005-12-16?12:31??Help\about_us\
?????文件???????17189??2005-04-13?21:34??Help\about_us\akshata.jpg
?????文件???????49064??2005-04-12?03:48??Help\about_us\oursnap.jpg
?????文件???????14410??2005-04-13?21:39??Help\about_us\prateek.jpg
?????文件???????18662??2005-04-14?22:30??Help\about_us\wilson.jpg
?????文件????????5311??2005-04-13?21:33??Help\about_us\wilson2.jpg
?????文件????????1766??2005-12-16?12:48??Help\About_Us.html
?????目錄???????????0??2005-12-16?12:29??Help\basics\
?????文件????????4375??2005-04-12?01:34??Help\basics\degradation_model.jpg
?????文件????????7661??2005-04-12?02:15??Help\basics\degraded_dot_psf.jpg
?????文件?????????860??2005-04-12?01:49??Help\basics\dot.jpg
?????文件????????1251??2005-04-12?01:59??Help\basics\dot_blur_angle.jpg
?????文件????????1251??2005-04-12?01:56??Help\basics\dot_blur_len.jpg
?????文件????????6363??2005-04-12?02:19??Help\basics\gaussian.jpg
?????文件????????6883??2005-04-12?02:14??Help\basics\original_dot_psf.jpg
?????文件?????????746??2005-04-12?02:22??Help\basics\poisson.jpg
?????文件????????7759??2005-04-12?02:19??Help\basics\salt_&_pepper.jpg
?????文件????????7850??2005-04-12?02:19??Help\basics\speckle.jpg
?????文件????????6702??2005-12-16?12:48??Help\Basics.html
?????文件????????2455??2005-12-16?12:52??Help\Degrade.html
?????目錄???????????0??2005-12-16?12:31??Help\getting_started\
?????文件????????7915??2005-04-12?17:58??Help\getting_started\degrade_menu.jpg
............此處省略53個文件信息