OpenCv 使用vector画出轮廓外接矩形

Hai

 1 IplImage* printrect(IplImage *contourim)
 2 {
 3     
 4     IplImage *rectim=cvCreateImage(cvGetSize(contourim), IPL_DEPTH_8U, 3);
 5     int flag=1;
 6     vector<Point> points;
 7      for(;contourSeq!=NULL;contourSeq=contourSeq->h_next)
 8     {
 9         
10         
11         for(int i=0;i<contourSeq->total;i++) 
12         {
13             CvPoint p;
14             CvPoint* p1=(CvPoint*)cvGetSeqElem(contourSeq,i);
15             p.x=p1->x;
16             p.y=p1->y;
17             points.push_back(p);
18             
19         }
20         printf("No.%d contoured has pushed back\n",flag);
21         flag++;
22          CvRect rect = boundingRect(points); 
23          CvPoint pt1,pt2;  
24          pt1.x=rect.x;  
25          pt1.y=rect.y;  
26          pt2.x=rect.x+rect.width;  
27          pt2.y=rect.y+rect.height;
28          cvRectangle(contourim,pt1,pt2,CV_RGB(0,0,255));
29          points.swap(vector<Point>());//每次使用完必须清空容器
30     }
31     rectim=contourim;
32     return rectim;
33 
34     
35 }

printrect