%?demo?code?for?paper?“Graph-regularized?Saliency?Detection?with?Convex-hull-based?Center?Prior“?
%?written?by?chuan?yang
%?email:?ycscience86@gmail.com

clear?all;
%%?paramter
deltaw=0.05;?%%?controal?edge?weight?
spnumber=200;%%?superpixels?number
deltap=0.2;
deltax=0.15;
deltay=0.15;
lamda=25;
%convex?hull?paramter
sigma_g=1.5;
sigma_a=5;
nPoints=30;
%
imgRoot=‘./test/‘;%%?test?image?dir
outdir=‘./saliencymaps/‘;%%?the?output?saliency?map?saving?dir
supdir=‘./superpixels200/‘;%%?the?superpixels?files?saving?dir
mkdir（supdir）;
mkdir（outdir）;
imnames=dir（[imgRoot?‘*‘?‘jpg‘]）;
addpath（‘./others/‘）;
addpath（‘./ColorFeatures/‘）;
for?ii=1:length（imnames）;
??
????ii
????imname=[imgRoot?imnames（ii）.name];?
????input_im=imread（imname）;?
????outname=[imgRoot?imnames（ii）.name（1:end-4）?‘.bmp‘];
????imwrite（input_imoutname）;
????input_im=im2double（input_im）;
????[mnz]?=?size（input_im）;
????
%%?generate?superpixels
????comm=[‘SLICSuperpixelSegmentation‘?‘?‘?outname?‘?‘?int2str（20）?‘?‘?int2str（spnumber）?‘?‘?supdir];
????system（comm）;????
????spname=[supdir?imnames（ii）.name（1:end-4）??‘.dat‘];
????superpixels=ReadDAT（[mn]spname）;
????spnum=max（max（superpixels））;???
??
%%?initial?saliency?map
????%?compute?convex?hull
????Mboost?=?BoostMatrix（input_im）;
????boost_im=?BoostImage（input_imMboost）;
????[EnIm]=?ColorHarris（boost_imsigma_gsigma_a0.041）;
????[x_maxy_maxcorner_im2num_max]=getmaxpoints（EnImnPoints）;

????[xy]=find（corner_im2>0）;
????point=[xy];
????point=point（point（:1）>20:）;
????point=point（point（:1）????point=point（point（:2）>20:）;
????point=point（point（:2）????x=point（:1）;
????y=point（:2）;
????dis=zeros（length（x）1）;
????for?i=1:length（x）
????????dis（i）=0;
????????for?j=1:length（x）
????????????dis（i）=dis（i）+sqrt（（x（i）-x（j））^2+（y（i）-y（j））^2）;
????????end
????????dis（i）=dis（i）/length（x）;
????end
????[mdmind]=sort（dis）;clear?dis;
????point=point（mind（1:length（x）-2）:）;
????dt?=?DelaunayTri（point（:2）point（:1））;
????k?=?convexHull（dt）;
????[XY]?=?meshgrid（1:n1:m）;
????Xl=reshape（X[m*n1]）;
????Yl=reshape（Y[m*n1]）;
????sI=pointLocation（dtXlYl）;
????mask?=?~isnan（sI）;????
????mask=reshape（maskmn）;?
?
????%?compute?convex-hull-based?center?
????STATS?=?regionprops（mask‘Centroid‘）;
????center（2）?=?STATS（length（STATS））.Centroid（1）;
????center（1）=STATS（length（STATS））.Centroid（2）;
????center（1）=center（1）/m;
????center（2）=center（2）/n;
????
????%?convex-hull-based?center?prior??
????inds=cell（spnum1）;
????input_vals=reshape（input_im?m*n?z）;
????rgb_img=zeros（spnum13）;
????location_vals=zeros（spnum2）;
????sup_center_prior=zeros（spnum1）;
????for?i=1:spnum
????????inds{i}=find（superpixels==i）;
????????rgb_img（i1:）=mean（input_vals（inds{i}:）1）;
????????[mmnn]=ind2sub（size（superpixels）inds{i}）;
????????location_vals（i1）=mean（mm/m）;
????????location_vals（i2）=mean（nn/n）;
????????sup_center_prior（i）=exp（-（（location_vals（i1）-center（1））^2/（2*deltax）+（location_vals（i2）-center（2））^2/（2*deltay）））;
????end??

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-05-29?17:57??GR\
?????目錄???????????0??2018-05-29?16:42??GR\ColorFeatures\
?????文件?????????399??2016-01-07?07:59??GR\ColorFeatures\BoostImage.m
?????文件????????2809??2016-01-07?07:59??GR\ColorFeatures\BoostMatrix.m
?????文件????????1724??2016-01-07?07:59??GR\ColorFeatures\ColorHarris.m
?????文件????????1093??2016-01-07?07:59??GR\ColorFeatures\ColorStructureTensor.m
?????文件?????????390??2016-01-07?07:59??GR\ColorFeatures\ColorStructureTensor2.m
?????文件????????1713??2016-01-07?07:59??GR\ColorFeatures\HSI_der.m
?????文件?????????242??2016-01-07?07:59??GR\ColorFeatures\O2RGB.m
?????文件?????????430??2016-01-07?07:59??GR\ColorFeatures\RGB2O.m
?????文件?????????103??2016-01-07?07:59??GR\ColorFeatures\RGB2luminance.m
?????文件????????1724??2016-01-07?07:59??GR\ColorFeatures\canny.m
?????文件????????3139??2016-01-07?07:59??GR\ColorFeatures\color_canny.m
?????文件?????????338??2016-01-07?07:59??GR\ColorFeatures\color_gradient.m
?????文件????????2047??2016-01-07?07:59??GR\ColorFeatures\demo_color_canny.m
?????文件????????2276??2016-01-07?07:59??GR\ColorFeatures\demo_color_harris.m
?????文件????????2014??2016-01-07?07:59??GR\ColorFeatures\demo_quasi_invariant_edges.m
?????文件?????????303??2016-01-07?07:59??GR\ColorFeatures\dilation33.m
?????文件????????1112??2016-01-07?07:59??GR\ColorFeatures\fill_border.m
?????文件?????????974??2016-01-07?07:59??GR\ColorFeatures\gDer.m
?????文件?????????722??2016-01-07?07:59??GR\ColorFeatures\getmaxpoints.m
?????文件?????????102??2016-01-07?07:59??GR\ColorFeatures\make_image.m
?????文件????????1247??2016-01-07?07:59??GR\ColorFeatures\opponent_der.m
?????文件????????1887??2016-01-07?07:59??GR\ColorFeatures\spherical_der.m
?????文件????????3143??2016-01-07?07:59??GR\ColorFeatures\star_sym_color.m
?????文件?????????327??2016-01-07?07:59??GR\ColorFeatures\visualize_corners.m
?????文件????????3696??2016-01-07?07:59??GR\GetGR.m
?????文件????????1133??2016-01-07?07:59??GR\README.md
?????文件??????192512??2016-01-07?07:59??GR\SLICSuperpixelSegmentation.exe
?????文件?????????720??2016-01-07?07:59??GR\SlicSupPixel.m
?????文件????????4280??2016-01-07?07:59??GR\demo.m
............此處省略28個文件信息