Multi channel Mat display function

Question

I want to write a short function to display OpenCV Mat matrix type. I\'m closed to finish it. This is my code:

template 
int MATmtxdisp(con         


        

Answer 1

What about this?

cv::Mat myMat(2,3, CV_8UC3, cv::Scalar(1, 2, 3));
std::cout << myMat << std::endl;

Anyway, your code is much easier if you use cout:

template <class T>
int MATmtxdisp(const Mat& mtx)
{   
    uchar chan = mtx.channels();
    int step = mtx.step();
    T* ptr = (T*)mtx.data;

    for(int i = 0; i < mtx.rows; i++)
        for(int k = 0; k < chan; k++)
        {
            for(int l = 0; l < mtx.cols; l++)
            {
                cout << ptr[ /* calculate here the index */];
            }
            cout << endl;
    }
}