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55 questions

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667
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2020-07-29 00:36:08 -0600 jianyn

The result obtained by cuda::dft is different from cv::dft

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2020-06-17 07:21:40 -0600 kayman

Find image rotation angle using DFT

945
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2020-03-05 20:17:42 -0600 Eyal321

Removing padding after fft

155
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2019-09-18 04:36:36 -0600 LBerger

discrete_fourier_transform sample error in opencv4.1.1

328
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2019-08-15 00:30:48 -0600 masahiro.dll

Speed up DFT by specifying ROI in frequency domain [closed]

90
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2019-04-27 05:07:49 -0600 vasilev

spectrum component after DFT [closed]

178
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2019-04-22 13:47:10 -0600 berak

Recovery image with DFT

722
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2018-11-07 07:18:33 -0600 winatawelly

Inverse fourier result is black and full of white dots

531
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1
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2018-10-13 09:24:55 -0600 t3rb3d

Signal in frequency domain with OpenCV dft

663
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2018-10-13 01:27:49 -0600 berak

OpenCV Fourier Transform complex output issue

254
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1
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2018-09-27 13:14:20 -0600 speedymcs

Can cv::dft() be sped up with the right compiler flags?

343
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2018-05-30 00:53:20 -0600 vaibhav_wimpsta

Why is mean filter not working in frequency domain?

690
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2018-01-18 05:39:29 -0600 Colin Peeris

Accuracy of OpenCV's DFT (C++ implementation)

316
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2017-09-20 21:10:19 -0600 big-john

How to deal with multi-channels Array

362
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2017-06-30 12:22:36 -0600 ShadowUS

Output of DFT is the same as input

406
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1
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2017-05-31 11:15:31 -0600 LBerger

dft function

232
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2017-05-31 10:17:33 -0600 raymond

Fast fourier higest three magnitudes

187
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2017-04-05 06:09:26 -0600 shiron8bit

64bit dft on cuda

422
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1
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1
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2017-04-03 09:09:29 -0600 LBerger

Discrete Fourier Transform Questions

2k
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2016-12-01 15:48:52 -0600 siline

fourier descriptor in opencv

1k
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1
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1
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2016-07-06 19:12:13 -0600 Tetragramm flag of United States of America

complex conjugate

1k
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1
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1
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2016-03-19 14:36:53 -0600 Tetragramm flag of United States of America

how to use inverse 1D fft when input is real

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2016-03-05 16:57:52 -0600 bingoblau

OpenCV dft audio getting spectrogram

324
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2016-02-05 05:29:47 -0600 yingnan

OpenCV split function doesn't work properly

3k
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1
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2
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2015-12-24 02:17:36 -0600 LBerger

Meaning of cv::idft() with DFT_REAL_OUTPUT option

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