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

3 votes310 views3 answers
Range(n,n) python
Python
3 votes309 views1 answer
Custom keyboard
Python
6 votes277 views3 answers
Change current working directory python
Python
0 vote329 views1 answer
Id
Python
42 votes326 views4 answers
Pickle.dump python
Python
0 vote325 views2 answers
Get hex code of character python
Python
2 votes333 views2 answers
Django response headers
Python
1 vote268 views1 answer
Python - remove repeted columns in a df
Python
0 vote327 views1 answer
Sklearn cheat sheet
Python
3 votes305 views2 answers
Discord.py edit messages
Python