Used for fast Fourier transformations of projections and images.
Without this library \ctsim\ will use slower, traditional Fourier transformations.\\
\urlref{Web site}{http://www.fftw.org}
Used for fast Fourier transformations of projections and images.
Without this library \ctsim\ will use slower, traditional Fourier transformations.\\
\urlref{Web site}{http://www.fftw.org}