nofft

[hakelm]

I am trying to do some fft processing with imagemagick but it doesn't work.
When trying I get:
magick: delegate library support not built-in `kors.png' (FFTW) @ warning/fourier.c/ForwardFourierTransformImage/922.
I have fftw installed, see below.
I uninstalled Imagemagick.
Ran root@x22:/home/he/ImageMagick# ./configure --with-modules
Output shows FFTW --with-fftw=no noWhat can I do?
Thanks in advance for any tip.
H

root@x22:/home/he# dpkg-query --list|grep fftw3
ii libfftw3-3:amd64 3.3.8-2ubuntu8 amd64 Library for computing Fast Fourier Transforms
ii libfftw3-bin 3.3.8-2ubuntu8 amd64 Library for computing Fast Fourier Transforms - Tools
ii libfftw3-dev:amd64 3.3.8-2ubuntu8 amd64 Library for computing Fast Fourier Transforms - development
ii libfftw3-double3:amd64 3.3.8-2ubuntu8 amd64 Library for computing Fast Fourier Transforms - Double precision
ii libfftw3-long3:amd64 3.3.8-2ubuntu8 amd64 Library for computing Fast Fourier Transforms - Long precision
ii libfftw3-mpi3:amd64 3.3.8-2ubuntu8 amd64 MPI Library for computing Fast Fourier Transforms
ii libfftw3-quad3:amd64 3.3.8-2ubuntu8 amd64 Library for computing Fast Fourier Transforms - Quad precision
ii libfftw3-single3:amd64

[dlemstra]

fftw is not enabled by default due to license they are using you will need to run ./configure --with-modules --with-fftw=yes instead. The output was showing --with-fftw=no no and that meant that that option for --with-fftw was specified as no and the result was also no (the second one).

[hakelm]

Works like a charm.
Thanks for a clear and helpful answer.