opencv c++ resizeWindow example

 Original image size [5120x2188], but you can imshow as 300x300 and resizable.

..

#include "opencv2/opencv.hpp"
#include "opencv2/highgui/highgui.hpp"  
#include <iostream>
#include <chrono>
 
#pragma comment(lib, "opencv_highgui453.lib")
#pragma comment(lib, "opencv_imgcodecs453.lib")
#pragma comment(lib, "opencv_core453.lib")
 
int main() {
	//read image
	cv::Mat oImg = cv::imread("Resized_Blackpink_PUBG_210321.jpg");
	cv::namedWindow("oimg", cv::WINDOW_NORMAL);
	cv::resizeWindow("oimg", 300, 300);
	cv::imshow("oimg", oImg);
	cv::waitKey(0);
}

..

Thank you.