I want to set the iterator to the specified element of the matrix, but the output is nothing or messy code. The codes are following. pleace help me to understand.Thank you!

include<iostream>

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

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

using namespace std; using namespace cv; int main() { Point2i pi(0,0); Mat n=(Mat_<float>(2,2) << 1.0f, 2.0f, 3.0f, 4.0f); Mat* m=& n; MatConstIterator ito(m, pi); cout <<(*ito); system("pause"); }

I want to set the iterator to the specified element of the matrix, but the output is nothing or messy code. The codes are following. pleace help me to understand.Thank you!

#include<iostream>
#include<opencv2/core/core.hpp>
#include<opencv2/highgui/highgui.hpp>
  
include<opencv2 core="" core.hpp="">
 
include<opencv2 highgui="" highgui.hpp="">
 
using namespace std;
using namespace cv;
int main()
{
 Point2i pi(0,0);
 Mat n=(Mat_<float>(2,2) << 1.0f, 2.0f, 3.0f, 4.0f);
 Mat* m=& n;
 MatConstIterator ito(m, pi);
 cout <<(*ito);
 system("pause");
}
}