为什么在调试模式下opencv imshow()创建一个与namedWindow()同名的新窗口? [英] why opencv imshow() create a new window has the same name as namedWindow() does in Debug Mode?

问题描述

我想创建一个垫子并将其显示在名为"figure"的窗口中.

I want to create a mat and show it in a window named "figure".

如果没有问题，应该有一个名为"figure"的窗口，并接受任何要停止的键.

If there is nothing wrong, there should be a window named "figure", and accept any key to stop.

在发布模式下，以下代码可以正常工作. 但是在调试模式下，imshow()将创建一个新窗口，该窗口的名称与nameWindow()创建的窗口相同.并且只有namedWindow()创建的图形才能接受我的输入.

In Release mode, the following code works finely. but in Debug mode, the imshow() will create a new window which has the same name with the window create by nameWindow(). and only the figure created by namedWindow() accepts my input.

#include<opencv2\opencv.hpp>

const std::string winName = "figure";
int main() {
    cv::Mat m;
    cv::namedWindow(winName,cv::WINDOW_AUTOSIZE);
    m.create(300, 300, CV_32FC3);
    m.setTo(cv::Scalar(0.0f, 2.0f, 5.0f));

    cv::imshow(winName, m);
    cv::waitKey(0);

}

推荐答案

此问题是由于链接设置错误所致.

This problem is due to wrong linking settings.

• 在 Debug 中，您只需链接到调试库opencv_world331d.lib
• 在发布中，您只需链接到发布库opencv_world331.lib

• In Debug, you need to link only to the debug library opencv_world331d.lib
• In Release, you need to link only to the release library opencv_world331.lib

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