%?Demo?for?paper?“Saliency?Detection?via?Graph-based?Manifold?Ranking“?
%?by?Chuan?Yang?Lihe?Zhang?Huchuan?Lu?Ming-Hsuan?Yang?and?Xiang?Ruan
%?To?appear?in?Proceedings?of?IEEE?Conference?on?Computer?Vision?and?Pattern?Recognition?（CVPR?2013）?Portland?June?2013.

clear?all;
addpath（‘./others/‘）;
%%------------------------set?parameters---------------------%%
theta=10;?%?control?the?edge?weight?
alpha=0.99;%?control?the?balance?of?two?items?in?manifold?ranking?cost?function
spnumber=200;%?superpixel?number
imgRoot=‘./test/‘;%?test?image?path
saldir=‘./saliencymap/‘;%?the?output?path?of?the?saliency?map
supdir=‘./superpixels/‘;%?the?superpixel?label?file?path
mkdir（supdir）;
mkdir（saldir）;
imnames=dir（[imgRoot?‘*‘?‘jpg‘]）;

for?ii=1:length（imnames）???
????disp（ii）;
????imname=[imgRoot?imnames（ii）.name];?
????[input_imw]=removeframe（imname）;%?run?a?pre-processing?to?remove?the?image?frame?
????[mnk]?=?size（input_im）;

%%----------------------generate?superpixels--------------------%%
????imname=[imname（1:end-4）?‘.bmp‘];%?the?slic?software?support?only?the?‘.bmp‘?image
????comm=[‘SLICSuperpixelSegmentation‘?‘?‘?imname?‘?‘?int2str（20）?‘?‘?int2str（spnumber）?‘?‘?supdir];
????system（comm）;????
????spname=[supdir?imnames（ii）.name（1:end-4）??‘.dat‘];
????superpixels=ReadDAT（[mn]spname）;?%?superpixel?label?matrix
????spnum=max（superpixels（:））;%?the?actual?superpixel?number

%%----------------------design?the?graph?model--------------------------%%
%?compute?the?feature?（mean?color?in?lab?color?space）?
%?for?each?node?（superpixels）
????input_vals=reshape（input_im?m*n?k）;
????rgb_vals=zeros（spnum13）;
????inds=cell（spnum1）;
????for?i=1:spnum
????????inds{i}=find（superpixels==i）;
????????rgb_vals（i1:）=mean（input_vals（inds{i}:）1）;
????end??
????lab_vals?=?colorspace（‘Lab<-‘?rgb_vals）;?
????seg_vals=reshape（lab_valsspnum3）;%?feature?for?each?superpixel
?
?%?get?edges
????adjloop=AdjcProcloop（superpixelsspnum）;
????edges=[];
????for?i=1:spnum
????????indext=[];
????????ind=find（adjloop（i:）==1）;
????????for?j=1:length（ind）
????????????indj=find（adjloop（ind（j）:）==1）;
????????????indext=[indextindj];
????????end
????????indext=[indextind];
????????indext=indext（（indext>i））;
????????indext=unique（indext）;
????????if（~isempty（indext））
????????????ed=ones（length（indext）2）;
????????????ed（:2）=i*ed（:2）;
????????????ed（:1）=indext;
????????????edges=[edges;ed];
????????end
????end

%?compute?affinity?matrix
????weights?=?makeweights（edgesseg_valstheta）;
????W?=?adjacency（edgesweightsspnum）;

%?learn?the?optimal?affinity?matrix?（eq.?3?in?paper）
????dd?=?sum（W）;?D?=?sparse（1:spnum1:spnumdd）;?clear?dd;
????optAff?=（D-alpha*W）\eye（spnum）;?
????mz=diag（ones（spnum1））;
????mz=~mz;
????optAff=optAff.*mz;
??
%%-----------------------------stage?1--------------------------%%
%?compute?the?saliency?value?for?each?superpixel?
%?with?the?top?boundary?as?the?query
????Yt=ze

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

?????文件???????5123??2013-04-06?11:11??顯著性檢測算法\demo.m

?????文件???????2101??2003-08-22?05:43??顯著性檢測算法\others\adjacency.m

?????文件???????1052??2013-04-03?16:31??顯著性檢測算法\others\AdjcProcloop.m

?????文件??????14019??2006-08-13?18:29??顯著性檢測算法\others\colorspace.m

?????文件????????215??2013-03-05?19:16??顯著性檢測算法\others\makeweights.m

?????文件???????2365??2003-08-22?05:43??顯著性檢測算法\others\normalize.m

?????文件????????441??2013-03-05?18:58??顯著性檢測算法\others\ReadDAT.m

?????文件???????1256??2013-03-28?20:17??顯著性檢測算法\others\removeframe.m

?????文件???????1924??2013-04-03?17:48??顯著性檢測算法\readme.txt

?????文件?????192512??2012-11-28?16:12??顯著性檢測算法\SLICSuperpixelSegmentation.exe

?????目錄??????????0??2013-07-07?18:27??顯著性檢測算法\others

?????目錄??????????0??2013-07-07?18:27??顯著性檢測算法

-----------?---------??----------?-----??----

???????????????221008????????????????????12