itkVnlFFTCommon.h

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/*=========================================================================
 *
 *  Copyright NumFOCUS
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/
#ifndef itkVnlFFTCommon_h
#define itkVnlFFTCommon_h
 
#include "itkIntTypes.h"
 
#include "vnl/algo/vnl_fft_base.h"
 
namespace itk
{
 
struct VnlFFTCommon
{
 
  template <typename TSizeValue>
  static bool
  IsDimensionSizeLegal(TSizeValue n);
 
  static constexpr SizeValueType GREATEST_PRIME_FACTOR = 5;
 
  template <typename TImage>
  struct VnlFFTTransform : public vnl_fft_base<TImage::ImageDimension, typename TImage::PixelType>
  {
    using Base = vnl_fft_base<TImage::ImageDimension, typename TImage::PixelType>;
 
    //: constructor takes size of signal.
    VnlFFTTransform(const typename TImage::SizeType & s);
  };
};
} // namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkVnlFFTCommon.hxx"
#endif
 
#endif // itkVnlFFTCommon_h