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How to create a Mat (1D) with sequential values?

asked 2017-07-05 19:25:40 -0500

ambikav gravatar image

In Matlab following can be done -

Matrix=startVal:endVal; which results in a row vector with first element of startVal, incremented by one each time and last value being endVal.

Is there a similar way to create a 1D Mat in openCV?

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answered 2017-07-05 19:53:59 -0500

berak gravatar image

updated 2017-07-05 19:55:17 -0500

no, no such thing built in.

you simply set up your Mat, and fill it with numbers, manually:

Mat m(1,10,CV_64F); // 10 doubles in a single row
for (int i=0; i<10; i++)
      m.at<double>(0,i) = i; // set the column in row 0

note, that there are notorious differences between c++ and matlab, like 0 or 1 based indexing, so careful !

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Great. Thanks!

ambikav gravatar imageambikav ( 2017-07-14 10:29:18 -0500 )edit
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Asked: 2017-07-05 19:25:40 -0500

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Last updated: Jul 05 '17