print cv::Mat element -- OpenCV(C++) -


i trying loop on matrix , print element, should simple operation, experience strange things...

i have a null matrix : cv::mat accum = cv::mat::zeros(3,5,cv_8u);

doing this:

for(int i=0;i<accum.rows;i++) {     for(int j=0;j<accum.cols;j++)     {         cout<<accum.at<int>(i,j) <<endl;     } }

i following elements:

0 0 0 0 0 0 0 0 0 -536870912 0 0 0 2027945984 587217671

why there random number @ places 0 should be?

if initialize value of matrix @ i=1,j=1 number 1, following

0 0 256 0 0 0 1 0 0 587202560 0 0 0 1931673600 587257437

i dont understand random values, might wrong, cant figure out what. please help?


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