itkFFTComplexToComplexImageFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkFFTComplexToComplexImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2009-04-23 03:43:41 $
  Version:   $Revision: 1.6 $

  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 __itkFFTComplexToComplexImageFilter_h
#define __itkFFTComplexToComplexImageFilter_h


#include <itkImageToImageFilter.h>
#include <itkImage.h>
#include <complex>

namespace itk
{
template < class TPixel, unsigned int NDimension = 3 >
class FFTComplexToComplexImageFilter :
    public ImageToImageFilter< Image< std::complex< TPixel > , NDimension >,
                               Image< std::complex< TPixel > , NDimension > >
{
public:
  typedef Image< std::complex< TPixel > , NDimension > InputImageType;
  typedef Image< std::complex< TPixel > , NDimension > OutputImageType;

  typedef FFTComplexToComplexImageFilter                        Self;
  typedef ImageToImageFilter< InputImageType, OutputImageType > Superclass;
  typedef SmartPointer<Self>                                    Pointer;
  typedef SmartPointer<const Self>                              ConstPointer;

  itkStaticConstMacro(ImageDimension, unsigned int,
                      InputImageType::ImageDimension );

  itkTypeMacro(FFTComplexToComplexImageFilter, ImageToImageFilter);

  static Pointer New(void);

  typedef enum 
    {
    DIRECT = 1,
    INVERSE
    }                                             TransformDirectionType;


  typedef InputImageType                          ImageType;
  typedef typename ImageType::SizeType            ImageSizeType;

  itkSetMacro( TransformDirection, TransformDirectionType );
  itkGetConstMacro( TransformDirection, TransformDirectionType );

protected:
  FFTComplexToComplexImageFilter() {}
  virtual ~FFTComplexToComplexImageFilter(){}

  virtual void GenerateOutputInformation(); // figure out allocation for output image
  virtual void GenerateInputRequestedRegion();

  virtual bool FullMatrix() = 0; // must be implemented in child


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

  TransformDirectionType                          m_TransformDirection;
};

} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkFFTComplexToComplexImageFilter.txx"
#endif

#endif

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