OpenCV Error: Assertion failed (size.width>0 && size.height>0) in cv::imshow - How to Fix - 常规

This error message indicates that the width and height of the image being displayed using cv::imshow function are either zero or negative. \n\nTo fix this error, you should check the size of the image before displaying it. Ensure that the image has a valid non-zero width and height. You can use the cv::Mat::empty() function to check if the image is empty or not. \n\nHere's an example of how you can check the size of the image before displaying it:\n\ncpp\ncv::Mat image = cv::imread("image.jpg");\nif (!image.empty()) {\n cv::imshow("Image", image);\n cv::waitKey(0);\n} else {\n std::cout << "Failed to load image!" << std::endl;\n}\n\n\nMake sure to replace "image.jpg" with the path to your actual image file.