Where is FFT support

[Mario69]

Hi !
I have just deinstalled IM v 6.6.something and installed newest IM 6.9.0 binaries for windows 64 (16 bit depth) with a hope that support for FFT would be there. But nothing. convert -version showed that fft support is not there. On the IM site they claim that fft support is included in IM since 6.5.4-3. So where is it ?
Mario

[fmw42]

On unix machines, it requires the FFTW delegate library. See http://www.imagemagick.org/script/comma ... ns.php#fft

I am not sure how that is installed for Windows or if it is supposed to be in the binary. One of the Windows users or IM developers will have to comment, since I do not use Windows.

[snibgo]

It isn't in the pre-build Windows binary.

[dlemstra]

FFTW uses the GPL license and that is why it is not included in the Windows build.

[Mario69]

OK, thanks! In the meantime I found a private site http://blog.astrophotographytargets.com ... n-windows/ where a recent enough version of IM is statically compiled with FFTW support for windows.
Best,
Mario

[fmw42]

For application tutorial, see http://www.fmwconcepts.com/imagemagick/ ... urier.html (though a bit old and predates the IM -fx jinc function, so the jinc had to be scripted from a math formula)

[fmw42]

Installation of FFTW on Windows and Ubuntu can be found at viewtopic.php?f=4&t=14251