Access matrix value opencv

On the documentation:

http://docs.opencv.org/2.4/modules/core/doc/basic_structures.html#mat

It says:

(...) if you know the matrix element type, e.g. it is float, then you can use at<>() method

That is, you can use:

Mat M(100, 100, CV_64F);
cout << M.at<double>(0,0);
Maybe it is easier to use the Mat_ class. It is a template wrapper for Mat. Mat_ has the operator() overloaded in order to access the elements.

Source: grepper.com

Access matrix value opencv

Mat M(100, 100, CV_64F);
cout << M.at<double>(0,0);

Source: coders911.org

Similar codes

1 vote399 views6 answers
Quick sort python
Python
1 vote343 views1 answer
ValueError: Failed to convert a NumPy array to a Tensor (Unsupported object type float).
Python
1 vote340 views1 answer
Np.multiply
Python
0 vote332 views1 answer
Python animation
Python
-1 vote324 views1 answer
Recursive class method python
Python
0 vote376 views1 answer
Base64 python flask html
Python
2 votes335 views2 answers
How to use coordinates in python
Python
0 vote350 views1 answer
Pandas set index integer not float
Python
14 votes302 views2 answers
How to read a website in python
Python
30 votes366 views4 answers
How to convert data type of a column in pandas
Python