//surf.cpp        #include "stdafx.h"        #include <cv.hpp>        #include <highgui.h>        #include "utils.h"        #include <iostream>        using namespace std;                void surf(char* path1, char* path2, INFO& info, bool show)        {            double t1,t2;            t1=cvGetTickCount();                    initModule_nonfree();                    Mat img1, img2;            img1=imread(path1,0);            img2=imread(path2,0);            if(img1.data==NULL)            {                cout<<"The image can not been loaded: "<<path1<<endl;                system("pause");                exit(-1);            }            if(img2.data==NULL)            {                cout<<"The image can not been loaded: "<<path2<<endl;                system("pause");                exit(-1);            }                    int minHessian=200;            SurfFeatureDetector surf_detector(minHessian) ;            SurfDescriptorExtractor surf_descriptor ;              vector<KeyPoint> kpts1_surf, kpts2_surf;            Mat desc1_surf, desc2_surf;            Ptr<cv::DescriptorMatcher> matcher_l2 = DescriptorMatcher::create("BruteForce");          //欧氏距离匹配            vector<vector<DMatch> > dmatches_surf;            vector<Point2f> matches_surf, inliers_surf;                        surf_detector.detect(img1,kpts1_surf);            surf_detector.detect(img2,kpts2_surf);            info.n1 = kpts1_surf.size();            info.n2 = kpts2_surf.size();                    surf_descriptor.compute(img1,kpts1_surf,desc1_surf);            surf_descriptor.compute(img2,kpts2_surf,desc2_surf);            matcher_l2->knnMatch(desc1_surf,desc2_surf,dmatches_surf,2);            matches2points_nndr(kpts1_surf,kpts2_surf,dmatches_surf,matches_surf,DRATIO);            info.m=matches_surf.size()/2;            compute_inliers_ransac(matches_surf,inliers_surf,MIN_H_ERROR,false);            info.rm=inliers_surf.size()/2;                    t2=cvGetTickCount();            info.t=(t2-t1)/1000000.0/cvGetTickFrequency();                    Mat img1_rgb_surf = imread(path1,1);            Mat img2_rgb_surf = imread(path2,1);            Mat img_com_surf = Mat(Size(img1.cols*2,img1.rows),CV_8UC3);                    if(show == true)            {                draw_inliers(img1_rgb_surf,img2_rgb_surf,img_com_surf,inliers_surf,2);                imshow("surf",img_com_surf);                waitKey(0);            }                    return;        }  

    INFO surf_info;        surf(path1,path2,surf_info,false);        showInfo(surf_info);