我想編譯一個示例openCV項目,它使用SURF進行圖像匹配。OpenCV - 無法使用SurfFeatureDetector類
該代碼是波紋管列出:
#include <stdio.h>
#include <iostream>
#include <cv.h>
#include <cxcore.h>
#include <highgui.h>
//#include "opencv2/core/core.hpp"
//#include "opencv2/features2d/features2d.hpp"
//#include "opencv2/highgui/highgui.hpp"
using namespace cv;
void readme();
/** @function main */
int main()
{
/*
if(argc != 3)
{ readme(); return -1; }
Mat img_1 = imread(argv[1], CV_LOAD_IMAGE_GRAYSCALE);
Mat img_2 = imread(argv[2], CV_LOAD_IMAGE_GRAYSCALE);
*/
Mat img_1 = imread("D:\\A.jpg", CV_LOAD_IMAGE_GRAYSCALE);
Mat img_2 = imread("D:\\backImg.jpg", CV_LOAD_IMAGE_GRAYSCALE);
if(!img_1.data || !img_2.data)
{ std::cout<< " --(!) Error reading images " << std::endl; return -1; }
//-- Step 1: Detect the keypoints using SURF Detector
int minHessian = 400;
SurfFeatureDetector detector;
std::vector<KeyPoint> keypoints_1, keypoints_2;
detector.detect(img_1, keypoints_1);
detector.detect(img_2, keypoints_2);
//-- Step 2: Calculate descriptors (feature vectors)
SurfDescriptorExtractor extractor;
Mat descriptors_1, descriptors_2;
extractor.compute(img_1, keypoints_1, descriptors_1);
extractor.compute(img_2, keypoints_2, descriptors_2);
//-- Step 3: Matching descriptor vectors using FLANN matcher
FlannBasedMatcher matcher;
std::vector<DMatch> matches;
matcher.match(descriptors_1, descriptors_2, matches);
double max_dist = 0; double min_dist = 100;
//-- Quick calculation of max and min distances between keypoints
for(int i = 0; i < descriptors_1.rows; i++)
{ double dist = matches[i].distance;
if(dist < min_dist) min_dist = dist;
if(dist > max_dist) max_dist = dist;
}
printf("-- Max dist : %f \n", max_dist);
printf("-- Min dist : %f \n", min_dist);
//-- Draw only "good" matches (i.e. whose distance is less than 2*min_dist)
//-- PS.- radiusMatch can also be used here.
std::vector<DMatch> good_matches;
for(int i = 0; i < descriptors_1.rows; i++)
{ if(matches[i].distance < 2*min_dist)
{ good_matches.push_back(matches[i]); }
}
//-- Draw only "good" matches
Mat img_matches;
drawMatches(img_1, keypoints_1, img_2, keypoints_2,
good_matches, img_matches, Scalar::all(-1), Scalar::all(-1),
vector<char>(), DrawMatchesFlags::NOT_DRAW_SINGLE_POINTS);
//-- Show detected matches
imshow("Good Matches", img_matches);
for(int i = 0; i < good_matches.size(); i++)
{ printf("-- Good Match [%d] Keypoint 1: %d -- Keypoint 2: %d \n", i, good_matches[i].queryIdx, good_matches[i].trainIdx); }
waitKey(0);
return 0;
}
/** @function readme */
void readme()
{ std::cout << " Usage: ./SURF_FlannMatcher <img1> <img2>" << std::endl; }
當我嘗試編譯我收到錯誤爲SurfFeatureDetector
作爲未聲明的標識符。當我右鍵點擊它並進入定義時,它會打開它。我應該包括其他東西嗎?它位於cv.h文件中包含的features2d.hpp中。你能幫我解決這個問題嗎?
您是否安裝了兩個版本的OpenCV?其中之一是2.4? – Sam 2012-07-19 09:07:46
是的,我有2.3.0和2.4.2 – Simon 2012-07-19 09:16:13
si sper ca votezi NU拉公民投票... – Sam 2012-07-19 11:53:33