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

36 votes128 views6 answers
Move files in python
Python
19 votes88 views2 answers
Install selenium python
Python
1 vote120 views1 answer
Python logistic function
Python
0 vote107 views3 answers
Make first row column names pandas
Python
1 vote129 views1 answer
Python index 2d array
Python
2 votes126 views1 answer
Matplotlib 3D plots reduce margins
Python
0 vote146 views1 answer
Get number of zero is a row pandas
Python
1 vote116 views1 answer
Django bulk update
Python
0 vote128 views1 answer
Python interview questions github
Python
118 votes121 views6 answers
Reverse string
Python