[SciPy-User] Float32 FFT

Sebastian Haase seb.haase@gmail....
Wed Feb 3 02:42:54 CST 2010


On Wed, Feb 3, 2010 at 3:32 AM, David Baddeley
<david_baddeley@yahoo.com.au> wrote:
> Does anyone know if there is a way of doing single precision ffts (more explicitly n-dimensional ffts using fftn) in scipy/numpy? The standard functions all seem to force a conversion to double precision and with large (~1000x1000x50) images the memory starts to add up.
>
> I'm running numpy 1.2.1, scipy 0.7.0, python 2.6 on linux x64.
>
> Thanks,
> David
>
I have an fftw2 wrapper (SWIGged) in Priithon (see googlecode).
It is based on Python 2.5.  A kind of "super package" binary version
(also for 64 bit Linux) is downloadable.
(FFTW is GPL). (The wrapper could be BSD).

Regards,
Sebastian Haase


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