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Re: FFT and Inverse FFT problem for an Electron Microscope Image

Posted by Dimiter Prodanov-3 on Aug 07, 2015; 10:12am
URL: http://imagej.273.s1.nabble.com/FFT-and-Inverse-FFT-problem-for-an-Electron-Microscope-Image-tp5013915p5013944.html

Dear all,

Handing of FFTs (and complex numbers) is a definite weakness of ImageJ.
Actually ImageJ implements only the Discrete Hartley transform in order to
avoid as much as possible use of complex numbers.
May be this was a reasonable design choice 15 years ago when ImageJ was
hardly more than an applet displaying an image but now I think it will make
much sense to reconsider this.

To put it simply without canonical state of the art  FFT/IFFT routine
ImageJ is not suitable for serious work in linear filtering/signal
processing.

It will be nice to expose FFTs using for example JTransforms library
https://sites.google.com/site/piotrwendykier/software/jtransforms

I think that the licenses are compatible.

best regards,

Dimiter Prodanov

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