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#include "opencv2/opencv.hpp"
int main()
{
IplImage *original = cvLoadImage("您的圖檔",1);
IplImage *gray = cvCreateImage(cvGetSize(original), 8, 1);
cvCvtColor( original, gray, CV_BGR2GRAY );
CvMemStorage* storage = cvCreateMemStorage(0);
CvSeq *objectKeypoints = 0, *objectDescriptors = 0;
CvSURFParams params = cvSURFParams(500, 0);
cvExtractSURF( gray, 0, &objectKeypoints, &objectDescriptors, storage, params );
printf("Total Object Descriptors: %d\n", objectDescriptors->total);
IplImage* object_color = cvCreateImage(cvGetSize(gray), 8, 3);
for(int i = 0; i < objectKeypoints->total; i++ )
{
CvSURFPoint* r = (CvSURFPoint*)cvGetSeqElem( objectKeypoints, i );
CvPoint center;
center.x = cvRound(r->pt.x);
center.y = cvRound(r->pt.y);
int radius = cvRound(r->size*1.2/9.*2);
cvCircle( original, center, radius, cvScalar(0,0,255), 1, 8, 0 );
}
cvNamedWindow("SURF Result",1);
cvShowImage( "SURF Result", original );
cvWaitKey();
system("pause");
return 0;
}

 
照片位置：台科大校門口大砲池 
[下載範例程式] (需安裝OpenCV2.2以上)
使用方法：把內附的s1.jpg和s2.jpg分別換成你要的圖即可，如以上範例所示。

 
   
[按此下載可執行程式] (請先安裝OpenCV 2.x以上)