# \#dft

**URL:** https://forum.opencv.org/tag/dft/20.md

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## [DFT with real points and complex results](https://forum.opencv.org/t/dft-with-real-points-and-complex-results/8410)

<div class="topic-metadata">

**Author:** [@Andrzej](https://forum.opencv.org/u/Andrzej)\
**Replies:** 0\
**Last updated:** [April 15, 2022, 7:21am UTC](https://forum.opencv.org/t/dft-with-real-points-and-complex-results/8410 "2022-04-15T07:21:49Z")

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I use dft with 8 real values. I obtain result in 8 real Mat. Correctly I interprete? rows: 0 -0th harmonic, only real. im = 0 for this 1 - 1st harmonic real 2 - 1st harmonic imag 3 - 2nd harmonic real 4 - 2nd ha…