Hi, Nope, sorry. We can't distribute the package with FFTW because its license does not allow it. What you can do is put an itkStreamingImageFilter after the fft ramp to process one projection at a time. Or add one empty projection after you 23d. Let me know if we can help with one of the two options. Simon
On Thu, May 7, 2020 at 7:24 PM Jerome Lesaint <lesaint.jer...@gmail.com> wrote: > Hi, > > I am trying to use the ramp filter FFTRampImageFilter and it fails at > Update time with the error message : > > itk::ERROR: VnlRealToHalfHermitianForwardFFTImageFilter(00000230EC986BA0): > Cannot compute FFT of image with size [1024, 512, 23]. > VnlRealToHalfHermitianForwardFFTImageFilter operates only on images whose > size in each dimension has a prime factorization consisting of only 2s, 3s, > or 5s. > > I already read Simon's answer to a previous similar issue, saying that he > recommends using FFTW by turning ITK_USE_FFTW when building ITK. But I > did not compile ITK (on this computer). I simply installed the pre-compiled > Python package. > My question : can I turn any parameter in Python to force the ramp filter > to use this library ? > > Thanks in advance for your help, > > Jérome > _______________________________________________ > Rtk-users mailing list > Rtk-users@public.kitware.com > https://public.kitware.com/mailman/listinfo/rtk-users >
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