function?hog_svm_2classify
%hog+svm實現圖像二分類
clc;?
clear?;??
%%?訓練階段??
ReadList1??=?textread（‘pos_list.txt‘‘%s‘‘delimiter‘‘\n‘）;%載入正樣本列表??
sz1=size（ReadList1）;????
label1=ones（sz1（1）1）;?%正樣本標簽設為1

ReadList2??=?textread（‘neg_list.txt‘‘%s‘‘delimiter‘‘\n‘）;%載入負樣本列表??
sz2=size（ReadList2）;??
label2=zeros（sz2（1）1）;%負樣本標簽設為0??

label=[label1‘label2‘]‘;%標簽匯總??
total_num=length（label）;??
data=zeros（total_num1764）;??

%讀取正樣本并計算hog特征??
for?i=1:sz1（1）??
???name=?char（ReadList1（i1））;??
???image=imread（strcat（‘F:\svm\程序\HOG+SVM\實現圖像二分類\pos\‘name））;?
???im=imresize（image[6464]）;??
???img=rgb2gray（im）;??
???hog?=hogcalculator（img）;??
???data（i:）=hog;??
end??

%讀取負樣本并計算hog特征??
for?j=1:sz2（1）??
???name=?char（ReadList2（j1））;??
???image=imread（strcat（‘F:\svm\程序\HOG+SVM\實現圖像二分類\neg\‘name））;??
???im=imresize（image[6464]）;??
???img=rgb2gray（im）;??
???hog?=hogcalculator（img）;??
???data（sz1（1）+j:）=hog;??
end??

[train?test]?=?crossvalind（‘holdOut‘label）;??
cp?=?classperf（label）;??
svmStruct?=?svmtrain（data（train:）label（train））;??
save?svmStruct?svmStruct??
classes?=?svmclassify（svmStructdata（test:））;??
classperf（cpclassestest）;??
fprintf（‘CorrectRate?=?%f\n‘cp.CorrectRate）;??

%%?訓練完成后保存?svmStruct即可對新輸入的對象進行分類了無需再執行上面訓練階段代碼??
load?svmStruct??
test=imread（‘test2.jpg‘）;??
?????
im=imresize（test[6464]）;??
figure;??
imshow（im）;??
img=rgb2gray（im）;??
hogt?=hogcalculator（img）;??
classes?=?svmclassify（svmStructhogt）;%classes的值即為分類結果?
if?classes==1
????fprintf（‘測試對象為狗狗\n‘）;
elseif?classes==0
????fprintf（‘測試對象為貓咪\n‘）;
end

%%?子函數?hogcalculator.m
function?F?=?hogcalculator（img?cellpw?cellph?nblockw?nblockhnthet?overlap?isglobalinterpolate?issigned?normmethod）
?%?HOGCALCULATOR?calculate?R-HOG?feature?vector?of?an?input?image?using?the
?%?procedure?presented?in?Dalal?and?Triggs‘s?paper?in?CVPR?2005.
?%

%?Author:???timeHandle
?%?Time:?????March?24?2010
?%???????????May?12，2010?update.
?%
?%???????this?copy?of?code?is?written?for?my?personal?interest?which?is?an?
?%???????original?and?inornate?realization?of?[Dalal?CVPR2005]‘s?algorithm
?%???????without?any?optimization.?I?just?want?to?check?whether?I?understand
?%???????the?algorithm?really?or?not?and?also?do?some?practices?for?knowing
?%???????matlab?programming?more?well?because?I?could?be?called?as?‘novice‘.?
?%???????OpenCV?2.0?has?realized?Dalal‘s?HOG?algorithm?which?runs?faster
?%???????than?mine?without?any?doubt?╮（╯▽╰）╭?.?Ronan?pointed?a?error?in?
?%???????the?code，thanks?for?his?correction.?Note?that?at?the?end?of?this
?%???????code?there?are?some?demonstration?code，please?remove?in?your?work.


?%?
?%?F?=?hogcalculator（img?cellpw?cellph?nblockw?nblockh
?%????nthet?overlap?isglobalinterpolate?issigned?normmethod）
?%
?%?IMG:
?%???????IMG?is?the?input?image.
?%
?%?CELLPW?CELLPH:
?%???????CELLPW?and?CELLPH?are?cell‘s?pixel?width?and?height?respectively.
?%
?%?NBLOCKW?NBLCOKH:
?%???

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

?????文件??????18165??2019-01-09?21:38??實現圖像二分類\hog_svm_2classify.m

?????文件?????204539??2018-08-13?17:29??實現圖像二分類\neg\001.jpg

?????文件??????96337??2018-08-13?17:29??實現圖像二分類\neg\002.jpg

?????文件??????17069??2018-08-13?17:36??實現圖像二分類\neg\003.jpg

?????文件??????76468??2018-08-13?17:32??實現圖像二分類\neg\004.jpg

?????文件??????41452??2018-08-13?17:37??實現圖像二分類\neg\005.jpg

?????文件??????14968??2019-01-09?16:14??實現圖像二分類\neg\006.jpg

?????文件??????13477??2019-01-09?16:14??實現圖像二分類\neg\007.jpg

?????文件???????9609??2019-01-09?16:14??實現圖像二分類\neg\008.jpg

?????文件??????19519??2019-01-09?16:14??實現圖像二分類\neg\009.jpg

?????文件??????11870??2019-01-09?16:14??實現圖像二分類\neg\010.jpg

?????文件???????6976??2019-01-09?16:14??實現圖像二分類\neg\011.jpg

?????文件??????15828??2019-01-09?16:14??實現圖像二分類\neg\012.jpg

?????文件??????16946??2019-01-09?16:14??實現圖像二分類\neg\013.jpg

?????文件??????19743??2019-01-09?16:14??實現圖像二分類\neg\014.jpg

?????文件??????17538??2019-01-09?16:14??實現圖像二分類\neg\015.jpg

?????文件??????14978??2019-01-09?16:14??實現圖像二分類\neg\016.jpg

?????文件??????10546??2019-01-09?16:14??實現圖像二分類\neg\017.jpg

?????文件??????12772??2019-01-09?16:14??實現圖像二分類\neg\018.jpg

?????文件??????12464??2019-01-09?16:14??實現圖像二分類\neg\019.jpg

?????文件??????16300??2019-01-09?16:14??實現圖像二分類\neg\020.jpg

?????文件??????15512??2019-01-09?21:31??實現圖像二分類\neg\021.jpg

?????文件??????17547??2019-01-09?21:31??實現圖像二分類\neg\022.jpg

?????文件??????14928??2019-01-09?21:33??實現圖像二分類\neg\023.jpg

?????文件??????16010??2019-01-09?21:33??實現圖像二分類\neg\024.jpg

?????文件???????8320??2019-01-09?21:33??實現圖像二分類\neg\025.jpg

?????文件????????225??2019-01-09?21:34??實現圖像二分類\neg_list.txt

?????文件??????16363??2019-01-09?16:08??實現圖像二分類\pos\001.jpg

?????文件?????135559??2018-08-13?17:25??實現圖像二分類\pos\002.jpg

?????文件???????9123??2019-01-09?16:08??實現圖像二分類\pos\003.jpg

............此處省略34個文件信息