c++ - 带有 SURF 的 OpenCV C++ 'Access Violation'

Question

我正在尝试使用 SURF 特征检测器，但我总是遇到这个错误-

程序“[1120] Corner Detection.exe”已退出，代码为 -1073741819 (0xc0000005)“访问冲突”。

这是代码

#include "stdafx.h"
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/features2d/features2d.hpp"
#include "opencv2/nonfree/features2d.hpp"
#include <iostream>
#include <stdlib.h>
#include <vector>
#include <stdio.h>
#include "opencv2/core/core.hpp"
#include "opencv2\nonfree\nonfree.hpp"

using namespace cv;
using namespace std;

void foo(Mat &image1, Mat &image2)
{
 int minHeassian = 400;

 SurfFeatureDetector detector(minHeassian);

 std::vector< KeyPoint > keypoints1, keypoints2;

 keypoints1.resize(1000);
 keypoints2.resize(1000);

 detector.detect(image1, keypoints1);  // <--- crashes at this line
 detector.detect(image2, keypoints2);  // <--- probably will crash here too

 SurfDescriptorExtractor extractor;

 Mat discriptors1, discriptors2;

 extractor.compute(image1, keypoints1, discriptors1);
 extractor.compute(image2, keypoints2, discriptors2);

 FlannBasedMatcher matcher;

 std::vector< DMatch > matches;

 matcher.match(discriptors1, discriptors2, matches);

 double minDist = 100;

 for (int i = 0; i < matches.size(); ++i)
  if (matches[i].distance < minDist)
   minDist = matches[i].distance;

 std::vector< DMatch > goodMatches;

 for (int i = 0; i < matches.size(); ++i)
  if (matches[i].distance <= max(0.02, (double)matches[i].distance))
   goodMatches.push_back(matches[i]);

 Mat matchImage;

 drawMatches(image1, keypoints1, image2, keypoints2,
  goodMatches, matchImage,
  Scalar::all(-1), Scalar::all(-1), vector<char>(),
  DrawMatchesFlags::NOT_DRAW_SINGLE_POINTS);

 namedWindow("Matches", WINDOW_AUTOSIZE);
 imshow("Matches", matchImage);

 waitKey(0);

}

int _tmain(int argc, _TCHAR* argv[])
{
 cv::initModule_nonfree();

 Mat left, right;
 right = imread("D:\\right.jpg", IMREAD_COLOR);
 left = imread("D:\\left.jpg", IMREAD_COLOR);
 foo(left, right);
 return 0;
}

我在行中收到错误

detector.detect(image1, keypoints1);

我有以下链接器提到的 lib 文件-

opencv_core249d.lib
opencv_imgproc249d.lib
opencv_highgui249d.lib
opencv_ml249d.lib
opencv_video249d.lib
opencv_features2d249d.lib
opencv_calib3d249d.lib
opencv_objdetect249d.lib
opencv_contrib249d.lib
opencv_legacy249d.lib
opencv_flann249d.lib
opencv_features2d249.lib
opencv_nonfree249.lib

我已经尝试了我在 Internet 上找到的所有方法，但没有任何效果。这段代码有什么问题？

我在 Windows 8.1 上运行 VS 2013，我使用的是 OpenCV 2.4.9 版。

已解决

这是一个愚蠢的错误。我使用了库 opencv_nonfree249.lib 而我应该使用 opencv_nonfree249**d**.lib 因为我在 Debug模式下工作。

Answer 1

您在用于发布环境的调试环境中使用库 opencv_nonfree249.lib。将 d 添加到 lib 名称，使其成为 opencv_nonfree249d.lib，这将适用于调试环境。