include <opencv2 core="" core.hpp="">

include <opencv2 highgui="" highgui.hpp="">

include <iostream>

#include <opencv2/core/core.hpp>   
#include <opencv2/highgui/highgui.hpp>  
#include <iostream>

using namespace cv;
using namespace std;
 
std;
int main(int argc, char** argv)
{
if (argc != 2)
{
cout << " Usage: display_image ImageToLoadAndDisplay" << endl;
return -1;
}
 
}
Mat image;
 image = imread("D:\photo\sab.jpg", CV_LOAD_IMAGE_COLOR); // Read the file
 if (!image.data) // Check for invalid input
 {
  cout << "Could not open or find the image" << std::endl;
 return -1;
 }
 namedWindow("Display window", CV_WINDOW_AUTOSIZE);// Create a window for display.
 imshow("Display window", image); // Show our image inside it.
 waitKey(0); // Wait for a keystroke in the window
 return 0;
}
  
}