C++ opencv Crop Image

#include "opencv2/highgui/highgui.hpp"
#include "opencv2/imgproc/imgproc.hpp"
#include <iostream>
#include <stdio.h>
using namespace cv;
using namespace std;

int main()
{
Mat image = imread("D:\\1213.jpg",1);
cout << image.size() << endl;
Rect croppedRectangle = Rect(7, 340, 695, 315);

Mat croppedImage = image(croppedRectangle);
imshow("output", croppedImage);
cout << croppedImage.size();
waitKey();
return 0;
}