ITK: itkSquaredDifferenceImageFilter.h Source File

00001 /*========================================================================= 00002 00003 Program: Insight Segmentation & Registration Toolkit 00004 Module: $RCSfile: itkSquaredDifferenceImageFilter.h,v $ 00005 Language: C++ 00006 Date: $Date: 2003/09/10 14:28:57 $ 00007 Version: $Revision: 1.3 $ 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 __itkSquaredDifferenceImageFilter_h 00018 #define __itkSquaredDifferenceImageFilter_h 00019 00020 #include "itkBinaryFunctorImageFilter.h" 00021 00022 namespace itk 00023 { 00024 00048 namespace Functor { 00049 00050 template< class TInput1, class TInput2, class TOutput> 00051 class SquaredDifference2 00052 { 00053 public: 00054 SquaredDifference2() {}; 00055 ~SquaredDifference2() {}; 00056 inline TOutput operator()( const TInput1 & A, 00057 const TInput2 & B) 00058 { 00059 const double dA = static_cast<double>( A ); 00060 const double dB = static_cast<double>( B ); 00061 const double diff = dA - dB; 00062 return static_cast<TOutput>( diff * diff ); 00063 } 00064 }; 00065 } 00066 00067 template <class TInputImage1, class TInputImage2, class TOutputImage> 00068 class ITK_EXPORT SquaredDifferenceImageFilter : 00069 public 00070 BinaryFunctorImageFilter<TInputImage1,TInputImage2,TOutputImage, 00071 Functor::SquaredDifference2< 00072 typename TInputImage1::PixelType, 00073 typename TInputImage2::PixelType, 00074 typename TOutputImage::PixelType> > 00075 { 00076 public: 00078 typedef SquaredDifferenceImageFilter Self; 00079 typedef BinaryFunctorImageFilter<TInputImage1,TInputImage2,TOutputImage, 00080 Functor::SquaredDifference2< 00081 typename TInputImage1::PixelType, 00082 typename TInputImage2::PixelType, 00083 typename TOutputImage::PixelType> 00084 > Superclass; 00085 typedef SmartPointer<Self> Pointer; 00086 typedef SmartPointer<const Self> ConstPointer; 00087 00089 itkNewMacro(Self); 00090 00091 protected: 00092 SquaredDifferenceImageFilter() {} 00093 virtual ~SquaredDifferenceImageFilter() {} 00094 00095 private: 00096 SquaredDifferenceImageFilter(const Self&); //purposely not implemented 00097 void operator=(const Self&); //purposely not implemented 00098 00099 }; 00100 00101 } // end namespace itk 00102 00103 00104 #endif