C++ 功能描述教程无法使用opencv

我在opencv.com上尝试了有关功能描述的教程，程序崩溃，出现错误：

Debug assertion failed , Expression: vector iterator outside range

排队_

detector.detect(img_1, keypoints_1);

我在Visual Studio 2010中使用OpenCV 2.4.11，并链接到库目录

C:\OpenCV\build\x86\vc10\lib中的
OpenCV\u 2411d.lib
库

代码如下：

#include <iostream>
#include <stdio.h>
#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 cv;
using namespace std;



int main(int argc, char ** argv)
{
    Mat img_1 = imread("3.jpg", CV_LOAD_IMAGE_GRAYSCALE);
    Mat img_2 = imread("2.jpg", CV_LOAD_IMAGE_GRAYSCALE);

    if (!img_1.data || !img_2.data)
    {
        cout << " Nu au fost afisate imaginile" << endl;
        return -1;
    }

    int minHessian = 400;
    imshow("1.png", img_1);
    imshow("2.png", img_2);


    SurfFeatureDetector detector(minHessian);

    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 with a brute force matcher
    BFMatcher matcher(NORM_L2);
    vector< DMatch > matches;
    matcher.match(descriptors_1, descriptors_2, matches);

    //-- Draw matches
    Mat img_matches;
    drawMatches(img_1, keypoints_1, img_2, keypoints_2, matches, img_matches);

    //-- Show detected matches
    imshow("Matches", img_matches);

    waitKey(0);

    return 0;
}

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使用名称空间cv；
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int main（int argc，字符**argv）
{
Mat img_1=imread（“3.jpg”，CV_LOAD_IMAGE_GRAYSCALE）；
Mat img_2=imread（“2.jpg”，CV_LOAD_IMAGE_GRAYSCALE）；
如果（！img_1.data | |！img_2.data）
{
我敢打赌您有opencv 3.0，而本教程来自opencv 2.4.Xpost，同时也会显示错误消息。（您还应该更新到最新版本。）错误“调试断言失败，表达式：向量迭代器超出范围”。如果你看上面的图像，你会看到它崩溃的地方。我的错误是，我让opencv 2.4.11也发布了你的库目录C:\opencv\build\include-at可执行目录；C:\opencv\build\x86\vc10\lib-at include目录；opencv\u core2411d.lib opencv\u imgproc2411d.lib opencv\u highgui2411d.lib opencv\u特性2411.lib opencv\u calib3d2411.lib，链接器上的opencv_nonfree2411d.lib