Questions - OpenCV Q&A Forum

179

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1

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

Recovery image with DFT

java
dft

90

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no

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

spectrum component after DFT [closed]

155

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

discrete_fourier_transform sample error in opencv4.1.1

323

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2019-10-02 13:23:29 -0600 Epigram

is there any analog of mulSpectrums function in opencvjs?

3k

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2019-12-28 07:54:19 -0600 berak

Assertion failed (!fixedType() || ((Mat*)obj)->type() == mtype) in cv::_OutputArray::create while Performing DFT

949

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

Removing padding after fft

1k

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

Find image rotation angle using DFT

669

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

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

274

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1

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2013-06-25 20:42:01 -0600 vipul

What data types can I use for a complex OutputArray?

1k

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1

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2013-04-15 08:34:17 -0600 Damiano

OpenCV gpu::dft distorted image after inverse transform

gpu
dft

573

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1

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no

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2014-01-28 19:47:15 -0600 Photon

DFT_ROWS flag

dft

3k

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1

answer

1

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2015-05-31 17:21:06 -0600 Eduardo

cuda::dft speed issues (too slow)

359

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1

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2

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2015-07-24 09:27:18 -0600 PhilRoc

Is dft() thread-safe?

19k

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1

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no

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2015-08-09 02:35:58 -0600 LBerger

DFT crop the spectrum due to pad 0

dft

576

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1

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1

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2015-09-25 00:16:41 -0600 berak

Signal processing to detect "jag-iness"?

274

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1

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no

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2015-09-27 14:55:30 -0600 215

imshow a mat<vec2f>

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

1k

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1

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1

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2016-03-19 14:36:53 -0600 Tetragramm

how to use inverse 1D fft when input is real

dft

1k

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1

answer

1

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2016-07-06 19:12:13 -0600 Tetragramm

complex conjugate

423

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1

answer

1

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

Discrete Fourier Transform Questions

dft
fourier

406

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1

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no

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

dft function

254

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1

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no

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

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

665

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1

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no

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

OpenCV Fourier Transform complex output issue

216

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1

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no

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2018-12-06 12:46:20 -0600 berak

Runtime Error in imshow using the DFT example in Opencv 4.0

8k

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2

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no

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2015-09-09 13:48:57 -0600 anatrong0

55 questions

Recovery image with DFT

spectrum component after DFT [closed]

discrete_fourier_transform sample error in opencv4.1.1

is there any analog of mulSpectrums function in opencvjs?

Assertion failed (!fixedType() || ((Mat*)obj)->type() == mtype) in cv::_OutputArray::create while Performing DFT

Removing padding after fft

Find image rotation angle using DFT

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

What data types can I use for a complex OutputArray?

OpenCV gpu::dft distorted image after inverse transform

DFT_ROWS flag

cuda::dft speed issues (too slow)

Is dft() thread-safe?

DFT crop the spectrum due to pad 0

Signal processing to detect "jag-iness"?

imshow a mat<vec2f>

Meaning of cv::idft() with DFT_REAL_OUTPUT option

how to use inverse 1D fft when input is real

complex conjugate

Discrete Fourier Transform Questions

dft function

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

OpenCV Fourier Transform complex output issue

Runtime Error in imshow using the DFT example in Opencv 4.0

cross-correlation of 2 same sized images

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