OpenCV452 Error Assertion failed sizewidth0 && sizeheight0 in cvimshow file Cbuildmaster_winpack-build-win64-vc15opencvmoduleshighguisrcwindowcpp line 404

This error occurs when the width or height of the image passed to the cv::imshow function is zero or negative. This function is used to display an image in a window.

To fix this error, you need to make sure that the image you are trying to display has a valid width and height. Check if you have correctly loaded the image and if it has valid dimensions. You can use the cv::imread function to load an image from a file.

Here is an example of how to load and display an image using OpenCV:

#include <opencv2/opencv.hpp>

int main() {
    // Load image from file
    cv::Mat image = cv::imread("path/to/image.jpg");

    // Check if the image was loaded successfully
    if (image.empty()) {
        std::cout << "Failed to load image" << std::endl;
        return 1;
    }

    // Create a window and display the image
    cv::namedWindow("Image");
    cv::imshow("Image", image);
    cv::waitKey(0);

    return 0;
}

Make sure to replace "path/to/image.jpg" with the actual path to your image file