Access to OpenCV Mat Elements CV_16UC1

Question

I tried using the following line code:

image.at<char>(row, column);
image.at<uchar>(row, column);
image.at<unsigned char>(row, column);
image.at<double>(row, column);

what's wrong?

after that I need to convert this value to float. Is casting enough?

Answer 1

CV_16UC1 has unsigned short as the base type, so you probably need to

unsigned short val = image.at<unsigned short>(row, column);

And yes, you can simply static cast into the float afterwards:

float fval = static_cast<float>(val);