error LNK2019: 无法解析的外部符号 "public: __thiscall cv::SIFT::SIFT(int,int,double,doubl
代码在这
#include "stdafx.h"
#include "highgui.h"
#include "nonfree/features2d.hpp"
#include <iostream>
#include<opencv2/legacy/legacy.hpp>
using namespace std;
using namespace cv;
void main(int argc, char* argv[])
{
Mat input1=imread("1.jpg",1);
Mat input2=imread("2.jpg",1);
SiftFeatureDetector detector;
vector<KeyPoint> keypoint1,keypoint2;
detector.detect(input1,keypoint1);
Mat output1;
drawKeypoints(input1,keypoint1,output1);
imshow("sift_result1.jpg",output1);
imwrite("sift_result1.jpg",output1);
Mat output2;
SiftDescriptorExtractor extractor;
Mat descriptor1,descriptor2;
BruteForceMatcher<L2<float>> matcher;
vector<DMatch> matches;
Mat img_matches;
detector.detect(input2,keypoint2);
drawKeypoints(input2,keypoint2,output2);
imshow("sift_result2.jpg",output2);
imwrite("sift_result2.jpg",output2);
extractor.compute(input1,keypoint1,descriptor1);
extractor.compute(input2,keypoint2,descriptor2);
matcher.match(descriptor1,descriptor2,matches);
drawMatches(input1,keypoint1,input2,keypoint2,matches,img_matches);
imshow("matches",img_matches);
imwrite("matches.jpg",img_matches);
waitKey();
}