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Author Asd-g
Version v1.0.0
Download FFTSpectrum-
Category Debug filter
License GPLv2


[edit] Description

FFTSpectrum is a filter that displays the FFT frequency spectrum of a given clip. Supposedly useful for determining original resolution of upscaled anime content.

This is a port of the VapourSynth plugin FFTSpectrum.

[edit] Requirements

  • FFTW 3.3.5 (fftw-3.3.5-dll32.zip or fftw-3.3.5-dll64.zip)
*** 32-bit libfftw3f-3.dll needs to be in the search path (C:\Windows\SysWOW64 64-bit OS or C:\windows\system32 32-bit OS)
*** 64-bit libfftw3f-3.dll needs to be in the search path (C:\windows\system32 64-bit OS)

[edit] Syntax and Parameters

FFTSpectrum (clip, bool "grid")

clip   =
A clip to process. It must be in YUV 8-bit planar format.

bool  grid = true
Whether a grid with origin at the center of the image and spacing of 100 pixels should be drawn over the resulting spectrum.
Default: False.

[edit] Examples

FFTSpectrum with all default settings:


[edit] Changelog

Version      Date            Changes
v1.0.0 2020/11/02 - Initial release

[edit] External Links

  • GitHub - Source code repository.

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