Fourier Transform : Polar Coordinate

[Sudipta Mukhopadhyay]

Hi

I am looking for Fourier Transform and Inverse Fourier Transform routine in polar coordinate. Can you please suggest any ImageJ plugin or any other library? Any working reference will also be appreciated.

With warm regards

Sudipta

___________________________________
IIT Kharagpur, http://www.iitkgp.ac.in

[Stephan Preibisch]

Hi,

it was a bit hidden in my yesterdays post:

Fast Fourier transforms for nonequispaced data, Potts et. al.
http://www-user.tu-chemnitz.de/~potts/nfft/
http://www-user.tu-chemnitz.de/~potts/nfft/polar.php

Fast and Accurate Polar Fourier Transform, Averbuch et. al.
http://www.cs.tau.ac.il/~amir1/PS/Polar_Paper_New.pdf
http://www.math.umn.edu/~focm/c_/Elad.pdf

NFFT is actually a c/c++ program that can do it (polar transform is an
example of how one can use NFFT), the others have a Matlab program as far
as I know...

Would be awesome if somebody wants to rewrite it for Java :) I would offer
my help for that...

All the best,
Stephan

> Hi
>
> I am looking for Fourier Transform and Inverse Fourier Transform routine
> in polar coordinate. Can you please suggest any ImageJ plugin or any other
> library? Any working reference will also be appreciated.
>
> With warm regards
>
> Sudipta
>
> ___________________________________
> IIT Kharagpur, http://www.iitkgp.ac.in
>