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嗨，我正在研究关于轮廓的学校项目。一切工作正常，直到我试图使用approxPolyDP这会导致我的VS2012抛出：在hugh.exe中的0x000007FEFD0E940D处未处理的异常：Microsoft C++异常：cv ::内存位置0x00000000002DEC40处的异常。C++ OpenCV approxPolyDP导致未处理的异常
我认为代码应该没问题，所以这就是为什么我有点失落。
这里是我的代码，所有的帮助表示赞赏：
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/imgproc/imgproc.hpp"
#include <sstream>
#include <string>
#include <iostream>
#include <opencv\highgui.h>
#include <opencv\cv.h>
#include <opencv\ml.h>
#include <math.h>
using namespace cv;
using namespace std;
vector<vector<Point> > contours0;
vector<vector<Point> > contours;
vector<Vec4i> hierarchy;
int main(int argc, char** argv)
{
const char* filename = argc >= 2 ? argv[1] : "pic1.jpg";
Mat src = imread(filename, 0);
if(src.empty())
{
cout << "can not open " << filename << endl;
return -1;
}
Mat out;
Canny(src, out, 100,400, 3);
out = out > 1;
namedWindow("Source", 1);
imshow("Source", out);
findContours(out, contours0, hierarchy,
CV_RETR_CCOMP, CV_CHAIN_APPROX_SIMPLE);
contours.resize(contours0.size());
for(size_t k = 0; k < contours0.size(); k++){
approxPolyDP(Mat(contours0[k]), contours[k], 3, true);
}
int idx = 0;
for(; idx >= 0; idx = hierarchy[idx][0])
{
drawContours(src, contours0, idx, Scalar(128,255,255), 5, 8, hierarchy);
}
namedWindow("Components", 1);
imshow("Components", src);
waitKey(0);
}