cvMatchShapes函數使用

double cvMatchShapes(
const void* object1,
const void* object2,
int method,
double parameter = 0
);

第一個參數是待匹配的物體1，第二個是待匹配的物體2
第三個參數method可以有CV_CONTOURS_MATCH_I1，CV_CONTOURS_MATCH_I2，CV_CONTOURS_MATCH_I3
三種輸入，這其實就是三種不同的判定物體相似的方法，匹配的返回值也是不一樣的其返回值分別通過下面的公式計算得出

 

 

# include "cv.h"
# include "highgui.h"
# include <iostream>
using namespace std;

int main()
{ 
   IplImage *mode = cvLoadImage("D:\\picture\\jz.jpg", 1);
   IplImage *test = cvLoadImage("D:\\picture\\stuff.jpg", 1);
   IplImage* bw_mode = cvCreateImage(cvGetSize(mode),mode->depth,1);
   IplImage* bw_test = cvCreateImage(cvGetSize(test),mode->depth,1);
   IplImage* canny_mode = cvCreateImage(cvGetSize(mode),mode->depth,1);
   IplImage* canny_test = cvCreateImage(cvGetSize(test),mode->depth,1);

   CvMemStorage *mode_mems=cvCreateMemStorage();
   CvSeq *mode_seqs;
   CvMemStorage *test_mems=cvCreateMemStorage();
   CvSeq *test_seqs;

   cvCvtColor(mode,bw_mode,CV_RGB2GRAY);
   cvCvtColor(test,bw_test,CV_RGB2GRAY);

   //model contours
   cvCanny(bw_mode,canny_mode,50,60);
   cvFindContours( canny_mode, mode_mems,
                  &mode_seqs,sizeof(CvContour),CV_RETR_TREE);

   //test contours
   cvCanny(bw_test,canny_test,50,60);
   cvFindContours( canny_test, test_mems,
                  &test_seqs,sizeof(CvContour),CV_RETR_TREE);

   double matching=cvMatchShapes( test_seqs, mode_seqs, CV_CONTOURS_MATCH_I1，0);
   cout << matching << endl;
   
   system("pause");
   //釋放內存
}

 

 

 

 

 

 

 

int cvMatchShapes_test()
{
IplImage *mode = cvLoadImage("D:\\lena.jpg", 1);
IplImage *test = cvLoadImage("D:\\test3.bmp", 1);
IplImage* bw_mode = cvCreateImage(cvGetSize(mode),mode->depth,1);
IplImage* bw_test = cvCreateImage(cvGetSize(test),mode->depth,1);
IplImage* canny_mode = cvCreateImage(cvGetSize(mode),mode->depth,1);
IplImage* canny_test = cvCreateImage(cvGetSize(test),mode->depth,1);

CvMemStorage *mode_mems=cvCreateMemStorage();
CvSeq *mode_seqs;
CvMemStorage *test_mems=cvCreateMemStorage();
CvSeq *test_seqs;

cvCvtColor(mode,bw_mode,CV_RGB2GRAY);
cvCvtColor(test,bw_test,CV_RGB2GRAY);

//model contours
//cvCanny(bw_mode,canny_mode,50,60);
cvFindContours( bw_mode, mode_mems,
&mode_seqs,sizeof(CvContour),CV_RETR_TREE);

//test contours
//cvCanny(bw_test,canny_test,50,60);
cvFindContours( bw_test, test_mems,
&test_seqs,sizeof(CvContour),CV_RETR_TREE);

double matching=cvMatchShapes( test_seqs, mode_seqs, 3);
printf("%f",matching);

cvReleaseImage( &mode ); //ÊÍ·ÅͼÏñ
cvReleaseImage( &test );
cvReleaseImage( &bw_mode ); //ÊÍ·ÅͼÏñ
cvReleaseImage( &bw_test );
cvReleaseImage( &canny_mode ); //ÊÍ·ÅͼÏñ
cvReleaseImage( &canny_test );
//ÊÍ·ÅÄÚ´æ
return 1;
}