itkFFTShiftImageFilter.h

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/*=========================================================================

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkFFTShiftImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2009-02-14 23:05:16 $
  Version:   $Revision: 1.1 $

  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even 
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
     PURPOSE.  See the above copyright notices for more information.

=========================================================================*/
#ifndef __itkFFTShiftImageFilter_h
#define __itkFFTShiftImageFilter_h

#include "itkImageToImageFilter.h"

namespace itk {

template<class TInputImage, class TOutputImage>
class ITK_EXPORT FFTShiftImageFilter : 
    public ImageToImageFilter<TInputImage, TOutputImage>
{
public:
  typedef FFTShiftImageFilter       Self;
  typedef ImageToImageFilter<TInputImage, TOutputImage>
                                    Superclass;
  typedef SmartPointer<Self>        Pointer;
  typedef SmartPointer<const Self>  ConstPointer;

  typedef TInputImage                              InputImageType;
  typedef TOutputImage                             OutputImageType;
  typedef typename InputImageType::Pointer         InputImagePointer;
  typedef typename InputImageType::ConstPointer    InputImageConstPointer;
  typedef typename InputImageType::RegionType      InputImageRegionType;
  typedef typename InputImageType::PixelType       InputImagePixelType;
  typedef typename OutputImageType::Pointer        OutputImagePointer;
  typedef typename OutputImageType::ConstPointer   OutputImageConstPointer;
  typedef typename OutputImageType::RegionType     OutputImageRegionType;
  typedef typename OutputImageType::PixelType      OutputImagePixelType;
  typedef typename OutputImageType::IndexType      IndexType;
  typedef typename OutputImageType::SizeType       SizeType;
  
  itkStaticConstMacro(ImageDimension, unsigned int,
                      TInputImage::ImageDimension);

  itkNewMacro(Self);  

  itkTypeMacro(FFTShiftImageFilter, 
               ImageToImageFilter);

  itkSetMacro(Inverse, bool);
  itkGetConstReferenceMacro(Inverse, bool);
  itkBooleanMacro(Inverse);

protected:
  FFTShiftImageFilter();
  ~FFTShiftImageFilter() {};
  void PrintSelf(std::ostream& os, Indent indent) const;

  void GenerateInputRequestedRegion();


  void  ThreadedGenerateData (const OutputImageRegionType& 
                              outputRegionForThread,
                              int threadId);
  

private:
  FFTShiftImageFilter(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented

  bool m_Inverse;

}; // end of class

} // end namespace itk
  
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkFFTShiftImageFilter.txx"
#endif

#endif