itkComplexToImaginaryImageAdaptor.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkComplexToImaginaryImageAdaptor.h,v $
  Language:  C++
  Date:      $Date: 2005/05/27 16:17:53 $
  Version:   $Revision: 1.2 $

  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 __itkComplexToImaginaryImageAdaptor_h
#define __itkComplexToImaginaryImageAdaptor_h

#include <itkImageAdaptor.h>
#include <complex>

namespace itk
{
 
namespace Accessor {
template <class TInternalType, class TExternalType >
class ITK_EXPORT ComplexToImaginaryPixelAccessor  
{
public:
  typedef TExternalType ExternalType;

  typedef TInternalType InternalType;

  static inline void Set(TInternalType & output, const TExternalType & input) 
    {output = (TInternalType)(input);}

  static inline TExternalType Get( const TInternalType & input ) 
    {return (TExternalType)(input.imag());}
};
  
} // end namespace Accessor
 
template <class TImage, class TOutputPixelType>
class ITK_EXPORT ComplexToImaginaryImageAdaptor : public
      ImageAdaptor<TImage,
                   Accessor::ComplexToImaginaryPixelAccessor<
                                      typename TImage::PixelType,
                                      TOutputPixelType>   >
{
public:
  typedef ComplexToImaginaryImageAdaptor  Self;
  typedef ImageAdaptor<TImage, Accessor::ComplexToImaginaryPixelAccessor<
                               typename TImage::PixelType,
                               TOutputPixelType> >  Superclass;
  typedef SmartPointer<Self>  Pointer;
  typedef SmartPointer<const Self>  ConstPointer;
  
  itkNewMacro(Self);  

  itkTypeMacro( ComplexToImaginaryImageAdaptor, ImageAdaptor );

 protected:
  ComplexToImaginaryImageAdaptor() {}
  virtual ~ComplexToImaginaryImageAdaptor() {}
  
 private:
  ComplexToImaginaryImageAdaptor(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented

};

} // end namespace itk

#endif

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