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itkComplexToImaginaryImageFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkComplexToImaginaryImageFilter.h,v $
00005   Language:  C++
00006   Date:      $Date: 2004/11/14 20:16:34 $
00007   Version:   $Revision: 1.1 $
00008 
00009   Copyright (c) Insight Software Consortium. All rights reserved.
00010   See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
00011 
00012      This software is distributed WITHOUT ANY WARRANTY; without even 
00013      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00014      PURPOSE.  See the above copyright notices for more information.
00015 
00016 =========================================================================*/
00017 #ifndef __itkComplexToImaginaryImageFilter_h
00018 #define __itkComplexToImaginaryImageFilter_h
00019 
00020 #include "itkUnaryFunctorImageFilter.h"
00021 #include "vnl/vnl_math.h"
00022 
00023 namespace itk
00024 {
00025   
00031 namespace Function {  
00032   
00033 template< class TInput, class TOutput>
00034 class ComplexToImaginary
00035 {
00036 public:
00037   ComplexToImaginary() {}
00038   ~ComplexToImaginary() {}
00039   inline TOutput operator()( const TInput & A )
00040   { return (TOutput)( A.imag() ); }
00041 }; 
00042 }
00043 
00044 template <class TInputImage, class TOutputImage>
00045 class ITK_EXPORT ComplexToImaginaryImageFilter :
00046     public
00047 UnaryFunctorImageFilter<TInputImage,TOutputImage, 
00048                         Function::ComplexToImaginary< 
00049   typename TInputImage::PixelType, 
00050   typename TOutputImage::PixelType>   >
00051 {
00052 public:
00054   typedef ComplexToImaginaryImageFilter  Self;
00055   typedef UnaryFunctorImageFilter<TInputImage,TOutputImage, 
00056                                   Function::ComplexToImaginary< typename TInputImage::PixelType, 
00057                                                  typename TOutputImage::PixelType> >  Superclass;
00058   typedef SmartPointer<Self>   Pointer;
00059   typedef SmartPointer<const Self>  ConstPointer;
00060 
00062   itkNewMacro(Self);
00063   
00064 protected:
00065   ComplexToImaginaryImageFilter() {}
00066   virtual ~ComplexToImaginaryImageFilter() {}
00067 
00068 private:
00069   ComplexToImaginaryImageFilter(const Self&); //purposely not implemented
00070   void operator=(const Self&); //purposely not implemented
00071 
00072 };
00073 
00074 } // end namespace itk
00075 
00076 
00077 #endif

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