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itkMinimumImageFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkMinimumImageFilter.h,v $
00005   Language:  C++
00006   Date:      $Date: 2007/08/30 15:01:09 $
00007   Version:   $Revision: 1.9 $
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 __itkMinimumImageFilter_h
00018 #define __itkMinimumImageFilter_h
00019 
00020 #include "itkBinaryFunctorImageFilter.h"
00021 
00022 namespace itk
00023 {
00024   
00037 namespace Function {  
00038 
00039 template< class TInput1, class TInput2=TInput1, class TOutput=TInput1>
00040 class Minimum
00041 {
00042 public:
00043   Minimum() {}
00044   ~Minimum() {}
00045   bool operator!=( const Minimum & ) const
00046   {
00047     return false;
00048   }
00049   bool operator==( const Minimum & other ) const
00050   {
00051     return !(*this != other);
00052   }
00053   inline TOutput operator()( const TInput1 & A, const TInput2 & B)
00054   { return static_cast<TOutput>( (A < B)? A : B ); }
00055 }; 
00056 }
00057 
00058 template <class TInputImage1, class TInputImage2=TInputImage1, class TOutputImage=TInputImage1>
00059 class ITK_EXPORT MinimumImageFilter :
00060     public
00061 BinaryFunctorImageFilter<TInputImage1,TInputImage2,TOutputImage, 
00062                          Function::Minimum< 
00063   typename TInputImage1::PixelType, 
00064   typename TInputImage2::PixelType,
00065   typename TOutputImage::PixelType>   >
00066 {
00067 public:
00069   typedef MinimumImageFilter  Self;
00070   typedef BinaryFunctorImageFilter<TInputImage1,TInputImage2,TOutputImage, 
00071                                    Function::Minimum< 
00072     typename TInputImage1::PixelType, 
00073     typename TInputImage2::PixelType,
00074     typename TOutputImage::PixelType>   
00075   > Superclass;
00076   typedef SmartPointer<Self>   Pointer;
00077   typedef SmartPointer<const Self>  ConstPointer;
00078 
00080   itkNewMacro(Self);
00081 
00082 #ifdef ITK_USE_CONCEPT_CHECKING
00083 
00084   itkConceptMacro(Input1ConvertibleToInput2Check,
00085     (Concept::Convertible<typename TInputImage1::PixelType,
00086                           typename TInputImage2::PixelType>));
00087   itkConceptMacro(Input2ConvertibleToOutputCheck,
00088     (Concept::Convertible<typename TInputImage2::PixelType,
00089                           typename TOutputImage::PixelType>));
00090   itkConceptMacro(Input1LessThanInput2Check,
00091     (Concept::LessThanComparable<typename TInputImage1::PixelType,
00092                                  typename TInputImage2::PixelType>));
00093 
00095 #endif
00096 
00097 protected:
00098   MinimumImageFilter() {}
00099   virtual ~MinimumImageFilter() {}
00100 
00101 private:
00102   MinimumImageFilter(const Self&); //purposely not implemented
00103   void operator=(const Self&); //purposely not implemented
00104 
00105 };
00106 
00107 } // end namespace itk
00108 
00109 
00110 #endif
00111 

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