OpenCV findContours会导致Debug Assertion在返回时失败 [英] OpenCV findContours causes Debug Assertion Failed at return

问题描述

我在Visual Studio 2013上编程，使用OpenCV v 2.4.8。
这是我的代码

  #define _CRT_SECURE_NO_WARNINGS 
 
 #include< cv.h> ; 
 #include< highgui.h> 
 
 int main（int argc，char * argv []）
 {
 cv :: Mat image = cv :: imread（argv [1]，0）; 
 image = image> 100; 
 std :: vector< std :: vector< cv :: Point> >轮廓; 
 cv :: findContours（图像，轮廓，CV_RETR_EXTERNAL，CV_CHAIN_APPROX_NONE）; 
 return 0; 
} 
  

一切都在发布模式下确定，我不明白为什么在调试模式下正常工作。它导致调试断言失败在 return 0;

（表达式：_pFirstBlock ==

我想像轮廓有些错误。

感谢您的帮助。

解决方案

在属性> C ++>代码生成>运行时语言：

如果MSVC运行时库设置为多线程调试DLL（/ MDd），那么这没有问题（它可以正常工作）。

如果MSVC运行时库设置为Multi -threaded Debug（/ MTd），那么它会抛出这个错误，这可以用以下指示来修复。

I am programming on Visual Studio 2013, using OpenCV v 2.4.8. Here is my code

#define _CRT_SECURE_NO_WARNINGS

#include <cv.h>
#include <highgui.h>

int main(int argc, char* argv[])
{
    cv::Mat image = cv::imread(argv[1], 0);
    image = image > 100;
    std::vector<std::vector<cv::Point> > contours;
    cv::findContours(image, contours, CV_RETR_EXTERNAL, CV_CHAIN_APPROX_NONE);
    return 0;
}

Everything is Ok in release mode, and I can't understand why it doesn't work normal in debug mode. It causes debug assertion failed at return 0;

(Expression : _pFirstBlock == pHead).

I suppose something is wrong with contours.

Many thanks in assistance.

解决方案

Under Property > C++ > code generation > Runtime libarary:
If the MSVC Runtime library is set to Multi-threaded Debug DLL (/MDd), then this is no problem (it works fine).

If the MSVC Runtime library is set to Multi-threaded Debug (/MTd), then it will throw this error, which can be fixed with the following instructions.

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