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Fast Fourier Transform (FFT) Forward, Reverse, 1D and 2D

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Dzandaa:
Hi,

This is a FFT and Complex units I wrote for demonstration purpose.

Included Test for 1D and 2D arrays
Buffers must be exponent of 2

For 1D FTT, there are also some Windows Filters like Hamming, Hanning, etc...
For 2D FTT, image must be square and exponent of 2 for size.

You cant select lower and higher frequencies to change the result.

Tested on Windows 10 and Linux Mint 20.2

B->

Thaddy:
Why didn't you use the standard fpc supplied uComplex unit?
The ComplexU unit seems to me like a reinvented wheel.

Dzandaa:
Hi,

@Thaddy:

--- Quote ---Why didn't you use the standard fpc supplied uComplex unit?
The ComplexU unit seems to me like a reinvented wheel.

--- End quote ---
Just for the fun and learning Pascal.

B->

ackarwow:
Hi @Dzandaa

Good job! Impressive...

marcov:
Is this correct for non power of 2 samplesizes, and what is the advantage over the standard FFT unit by Nils Haeck ?

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