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get float value from Mat

asked 2018-08-21 14:58:43 -0500

Aiyyaa gravatar image

updated 2018-09-07 00:55:17 -0500

I have a matrix of size [2 x 2], of type 64FC1, named eigenvectors.

[0.707152069011339, 0.7070614904610364;
 -0.7070614904610364, 0.707152069011339]

If I write cout<<(float)eigenvectors.at<float>(0,0); or cout<<eigenvectors.at<float>(0,0); I get number 5.25957e+19 instead of 0.707152069011339. How can I get exactly number 0.707152069011339 or any of numbers of this matrix?

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answered 2018-08-21 16:57:09 -0500

updated 2018-08-21 16:58:14 -0500

64FC1 -> double

cout << eigenvectors.at<double>(0,0);
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Asked: 2018-08-21 14:58:43 -0500

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Last updated: Aug 21 '18