opencv-Detection of planar objects(待完善)

#include <stdio.h>   #include <iostream>   #include "opencv2/core/core.hpp"   #include "opencv2/features2d/features2d.hpp"   #include "opencv2/highgui/highgui.hpp"   #include "opencv2/nonfree/features2d.hpp"   #include "opencv2/legacy/legacy.hpp"using namespace std;using namespace cv;int main( int argc, char** argv )  {  if( argc != 3 )  { cout<<"Please input again"<<endl; return -1; }  Mat img1 = imread( argv[1], CV_LOAD_IMAGE_GRAYSCALE );  Mat img2 = imread( argv[2], CV_LOAD_IMAGE_GRAYSCALE );  if( !img1.data || !img2.data )  { cout<< " --(!) Error reading images " <<endl; return -1; } //Detecting Key pointFastFeatureDetector detector(15);vector<KeyPoint> KeyPoints1;detector.detect(img1,KeyPoints1);vector<KeyPoint> KeyPoints2;detector.detect(img2,KeyPoints2);//compute descriptors for each of the keypointsSurfDescriptorExtractor extractor;Mat descriptors1;extractor.compute(img1,KeyPoints1,descriptors1);Mat descriptors2;extractor.compute(img2,KeyPoints2,descriptors2);//matching descriptorsBruteForceMatcher <L2<float> >matcher;vector<DMatch> matches;matcher.match(descriptors1,descriptors2,matches);//drawing the resultsnamedWindow("matches",1);Mat img_matches;drawMatches(img1,KeyPoints1,img2,KeyPoints2,matches,img_matches);imshow("matches",img_matches);waitKey(0);}