function?[quality?quality_map]?=?img_qi（img1?img2?block_size）

%========================================================================
%
%Copyright?（c）?2001?The?University?of?Texas?at?Austin
%All?Rights?Reserved.
%?
%This?program?is?free?software;?you?can?redistribute?it?and/or?modify
%it?under?the?terms?of?the?GNU?General?Public?License?as?published?by
%the?Free?Software?Foundation;?either?version?2?of?the?License?or
%（at?your?option）?any?later?version.
%?
%This?program?is?distributed?in?the?hope?that?it?will?be?useful
%but?WITHOUT?ANY?WARRANTY;?without?even?the?implied?warranty?of
%MERCHANTABILITY?or?FITNESS?FOR?A?PARTICULAR?PURPOSE.??See?the
%GNU?General?Public?License?for?more?details.
%?
%The?GNU?Public?License?is?available?in?the?file?LICENSE?or?you
%can?write?to?the?Free?Software?Foundation?Inc.?59?Temple?Place?-
%Suite?330?Boston?MA?02111-1307?USA?or?you?can?find?it?on?the
%World?Wide?Web?at?http://www.fsf.org.
%
%Author??:?Zhou?Wang?
%Version?:?1.0
%?
%The?authors?are?with?the?Laboratory?for?Image?and?Video?Engineering
%（LIVE）?Department?of?Electrical?and?Computer?Engineering?The
%University?of?Texas?at?Austin?Austin?TX.
%
%Kindly?report?any?suggestions?or?corrections?to?zwang@ece.utexas.edu
%
%Acknowledgement:
%The?author?would?like?to?thank?Mr.?Umesh?Rajashekar?the?Matlab?master
%in?our?lab?for?spending?his?precious?time?and?giving?his?kind?help
%on?writing?this?program.?Without?his?help?this?program?would?not
%achieve?its?current?efficiency.
%
%========================================================================
%
%This?is?an?efficient?implementation?of?the?algorithm?for?calculating
%the?universal?image?quality?index?proposed?by?Zhou?Wang?and?Alan?C.?
%Bovik.?Please?refer?to?the?paper?“A?Universal?Image?Quality?Index“
%by?Zhou?Wang?and?Alan?C.?Bovik?published?in?IEEE?Signal?Processing
%Letters?2001.?In?order?to?run?this?function?you?must?have?Matlab‘s
%Image?Processing?Toobox.
%
%Input?:?an?original?image?and?a?test?image?of?the?same?size
%Output:?（1）?an?overall?quality?index?of?the?test?image?with?a?value
%????????????range?of?[-1?1].
%????????（2）?a?quality?map?of?the?test?image.?The?map?has?a?smaller
%????????????size?than?the?input?images.?The?actual?size?is
%????????????img_size?-?BLOCK_SIZE?+?1.
%
%Usage:
%
%1.?Load?the?original?and?the?test?images?into?two?matrices
%???（say?img1?and?img2）
%
%2.?Run?this?function?in?one?of?the?two?ways:
%
%???%?Choice?1?（suggested）:
%???[qi?qi_map]?=?img_qi（img1?img2）;
%
%???%?Choice?2:
%???[qi?qi_map]?=?img_qi（img1?img2?BLOCK_SIZE）;
%
%???The?default?BLOCK_SIZE?is?8?（Choice?1）.?Otherwise?you?can?specify
%???it?by?yourself?（Choice?2）.
%
%3.?See?the?results:
%
%???qi????????????????????%Gives?the?over?quality?index.
%???imshow（（qi_map+1）/2）??%Shows?the?quality?map?as?an?image.
%
%========================================================================

if?（nargin?==?1?|?nargin?>?3）
???qua

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????495493??2013-10-15?14:52??03_11_FR_MS_SSIM\MULTI-SCALE?STRUCTURAL?SIMILARITY?FOR?IMAGE?QUALITY?ASSESSMENT.pdf

?????文件???????2410??2009-04-15?15:53??03_11_FR_MS_SSIM\ssim_index_new.m

?????文件???????2317??2009-04-15?15:54??03_11_FR_MS_SSIM\ssim_mscale_new.m

?????文件????????333??2009-04-15?15:54??03_11_FR_MS_SSIM\test.m

?????文件??????????0??2013-10-15?11:00??03_11_FR_MS_SSIM\總結.docx

?????文件???????1044??2013-10-10?14:44??04_4_FR_SSIM\CORNELL_A57_SSIM_results.mat

?????文件??????11459??2013-10-10?14:44??04_4_FR_SSIM\CSIQ_SSIM_results.mat

?????文件????1737809??2013-10-16?15:22??04_4_FR_SSIM\Image?Quality?Assessment?From?Error?Visibility?to.pdf

?????文件???????2245??2013-10-10?14:44??04_4_FR_SSIM\IVC_SSIM_results.mat

?????文件??????24029??2013-10-09?11:15??04_4_FR_SSIM\LIVE_SSIM_results.mat

?????文件????????506??2013-10-13?13:16??04_4_FR_SSIM\psnr_mse.m

?????文件???????1018??2013-10-10?14:43??04_4_FR_SSIM\readme.txt

?????文件????6199950??2013-10-10?14:46??04_4_FR_SSIM\SPM09.pdf

?????文件????1980944??2013-10-09?11:16??04_4_FR_SSIM\SPM09_figures.pdf

?????文件????2414155??2013-10-09?11:15??04_4_FR_SSIM\SPM09_figures.ppt

?????文件????4613632??2013-10-13?23:31??04_4_FR_SSIM\SSIM.doc

?????文件?????128449??2013-10-09?11:05??04_4_FR_SSIM\SSIM.llb

?????文件???????6381??2013-10-09?11:14??04_4_FR_SSIM\ssim.m

?????文件????4114944??2013-10-09?15:04??04_4_FR_SSIM\ssimzhouwang.ppt

?????文件???????4008??2013-10-10?15:43??04_4_FR_SSIM\SSIM_demo.asv

?????文件???????4561??2013-10-14?15:50??04_4_FR_SSIM\SSIM_demo.m

?????文件???????5918??2013-10-09?11:12??04_4_FR_SSIM\ssim_index.m

?????文件??????19016??2013-10-10?14:44??04_4_FR_SSIM\TID2008_SSIM_results.mat

?????文件???????3748??2013-10-10?14:44??04_4_FR_SSIM\TOYAMA_SSIM_results.mat

????..A..H.???????162??2013-10-10?11:37??04_4_FR_SSIM\~$SSIM.doc

????..A..H.???????162??2013-10-16?15:28??04_4_FR_SSIM\~$總結.docx

?????文件?????178716??2013-10-21?16:13??04_4_FR_SSIM\總結.docx

?????文件????6668829??2013-10-09?11:04??06_2_FR_vifp_release\Image?Information?and?Visual?Quality.pdf

?????文件???????2874??2005-05-15?00:02??06_2_FR_vifp_release\readme.txt

?????文件???????3972??2005-05-15?00:02??06_2_FR_vifp_release\vifp_mscale.m

............此處省略222個文件信息