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

7 votes153 views1 answer
How to install python libraries using pip
Python
0 vote174 views1 answer
Os.move file
Python
1 vote227 views1 answer
Using bs4 to obtain html element by id
Python
0 vote184 views1 answer
Python tuple to dict
Python
0 vote158 views2 answers
Python create adictionary randomly assigning clors to categorical vairables
Python
1 vote170 views1 answer
Skip header in csv python
Python
0 vote195 views1 answer
Pyplot common labels
Python
0 vote164 views1 answer
Prometheus API query
Python
99 votes157 views6 answers
Python delete file
Python
9 votes176 views2 answers
Distance euc of two arrays python
Python