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

0 vote325 views1 answer
Extract tgz files in python
Python
0 vote281 views1 answer
Python requests ignore SSL
Python
0 vote295 views1 answer
How to install threading module in python
Python
0 vote289 views1 answer
Inherit functions from other classes
Python
22 votes285 views6 answers
Python how to add to a list
Python
0 vote333 views1 answer
Django 2.2 disable cache settings.STATIC_URL
Python Django
18 votes291 views2 answers
Import local module python
Python
-2 votes305 views2 answers
Django form date picker
Python Django
1 vote325 views1 answer
How to add two different times in python
Python
1 vote276 views2 answers
Python get first occurrence in list
Python