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I am trying to convert a simple 2D array to Mat in C++, but when I output Mat it shows that it is filling the matrix by skipping an element.

int size = 3;
static unsigned int x [3][3];
for (int i = 0; i <size;i++){
        for(int j = 0; j <size; j++){
            x[i][j] = 255*3;
            std::cout << x[i][j]<<' ' << 'x'<<std::endl;
        }
}
cv::Mat A(size,size, CV_16U,x);
std::cout<< A<<' '<<std::endl;

Output:

765 x 765 x 765 x 765 x 765 x 765 x 765 x 765 x 765 x

[765, 0, 765; 0, 765, 0; 765, 0, 765]

Another example I tried:

int x[6] = {2,4,8,9,6,5};
cv::Mat A (2,3, CV_16U,x);
std::cout<< A<<' '<<std::endl;

Output:

[2, 0, 4; 0, 8, 0]

Can anyone please tell me what I am doing wrong, thanks.