opencv2笔记02-调用findContours后错误解决方法（HeapValidate）

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最近利用opencv2的函数findContours()实现连通域的定位，在调用该函数退出时，一直在“HeapValidate( _crtheap, 0, pHdr(pUserData) );”处报错（MFC），然而这段demo代码在控制台中运行时，一切正常。

搜索了网络，在“ 点击打开链接 ”中貌似也有给出比较根本性的的答案。通过摸索调试，这里找出的一个解决方法。在”配置属性“里，将”Use of MFC“的 ”Use MFC in a Static Library“ 改为 ”Use MFC in a Shared DLL“

控制台代码：

/** * @function findContours_Demo.cpp * @brief Demo code to find contours in an image * @author OpenCV team */#include "opencv2/highgui/highgui.hpp"#include "opencv2/imgproc/imgproc.hpp"#include <iostream>#include <stdio.h>#include <stdlib.h>using namespace cv;using namespace std;Mat src; Mat src_gray;int thresh = 100;int max_thresh = 255;RNG rng(12345);/// Function headervoid thresh_callback(int, void* );/** * @function main */int main( int, char** argv ){  /// Load source image and convert it to gray  src = imread( argv[1], 1 );  /// Convert image to gray and blur it  cvtColor( src, src_gray, COLOR_BGR2GRAY );  blur( src_gray, src_gray, Size(3,3) );  /// Create Window  const char* source_window = "Source";  namedWindow( source_window, WINDOW_AUTOSIZE );  imshow( source_window, src );  createTrackbar( " Canny thresh:", "Source", &thresh, max_thresh, thresh_callback );  thresh_callback( 0, 0 );  waitKey(0);  return(0);}/** * @function thresh_callback */void thresh_callback(int, void* ){  Mat canny_output;  vector<vector<Point> > contours;  vector<Vec4i> hierarchy;  /// Detect edges using canny  Canny( src_gray, canny_output, thresh, thresh*2, 3 );  /// Find contours  findContours( canny_output, contours, hierarchy, CV_RETR_TREE, CV_CHAIN_APPROX_SIMPLE, Point(0, 0) );  /// Draw contours  Mat drawing = Mat::zeros( canny_output.size(), CV_8UC3 );  for( size_t i = 0; i< contours.size(); i++ )     {       Scalar color = Scalar( rng.uniform(0, 255), rng.uniform(0,255), rng.uniform(0,255) );       drawContours( drawing, contours, (int)i, color, 2, 8, hierarchy, 0, Point() );     }  /// Show in a window  namedWindow( "Contours", WINDOW_AUTOSIZE );  imshow( "Contours", drawing );}

MFC代码：

void Ctest_mfc_249Dlg::OnBnClickedButtonTest(){// TODO: Add your control notification handler code hereMat src;Mat src_gray;Mat canny_output;RNG rng(12345);src = imread( "./cat.jpg", 1 );/// Convert image to gray and blur itcvtColor( src, src_gray, COLOR_BGR2GRAY );blur( src_gray, src_gray, Size(3,3) );vector<vector<Point> > contours;vector<Vec4i> hierarchy;/// Detect edges using cannyCanny( src_gray, canny_output, 100, 100*2, 3 );/// Find contoursfindContours( canny_output, contours, hierarchy, CV_RETR_TREE, CV_CHAIN_APPROX_SIMPLE, Point(0, 0) );/// Draw contoursMat drawing = Mat::zeros( canny_output.size(), CV_8UC3 );for( size_t i = 0; i< contours.size(); i++ ){Scalar color = Scalar( rng.uniform(0, 255), rng.uniform(0,255), rng.uniform(0,255) );drawContours( drawing, contours, (int)i, color, 2, 8, hierarchy, 0, Point() );}/// Show in a windownamedWindow( "Contours", WINDOW_AUTOSIZE );imshow( "Contours", drawing );}

出错信息：

解决方法：

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