CODEWITHSUNDEEP
opencv
Paritosh Mittal
Paritosh Mittal

Reputation: 11

How to show complex values after doing dft in opencv

     Mat fourierTransform(1,final.size()-1, CV_64FC1);
     //Mat fourierTransform;
     Mat ans(1,final.size()-1, CV_64FC1)         
     cv::dft(signal, fourierTransform,cv::DFT_COMPLEX_OUTPUT);

I am following this approach and then I am stuck at how to obtain the complex part of DFT. Can anybody tell how to about it to obtain it. Thanks in advance.

Upvotes: 1

Views: 2655

Answers (1)

cxyzs7
cxyzs7

Reputation: 1227

Here is a tutorial on how you can use OpenCV's DFT function: Discrete Fourier Transform

Essentially, it will store the output matrix as a two-channel matrix. The first channel is for real values, and the second channel is for complex values.

Upvotes: 1

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