ITK  5.0.0
Insight Segmentation and Registration Toolkit
itkSquaredDifferenceImageFilter.h
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18 #ifndef itkSquaredDifferenceImageFilter_h
19 #define itkSquaredDifferenceImageFilter_h
20 
22 
23 namespace itk
24 {
53 namespace Functor
54 {
55 template< typename TInput1, typename TInput2, typename TOutput >
57 {
58 public:
59  SquaredDifference2() = default;
60  ~SquaredDifference2() = default;
61  bool operator!=(const SquaredDifference2 &) const
62  {
63  return false;
64  }
65 
66  bool operator==(const SquaredDifference2 & other) const
67  {
68  return !( *this != other );
69  }
70 
71  inline TOutput operator()(const TInput1 & A,
72  const TInput2 & B) const
73  {
74  const auto dA = static_cast< double >( A );
75  const auto dB = static_cast< double >( B );
76  const double diff = dA - dB;
77 
78  return static_cast< TOutput >( diff * diff );
79  }
80 };
81 }
82 
83 template< typename TInputImage1, typename TInputImage2, typename TOutputImage >
85  public
86  BinaryGeneratorImageFilter< TInputImage1, TInputImage2, TOutputImage >
87 {
88 public:
89  ITK_DISALLOW_COPY_AND_ASSIGN(SquaredDifferenceImageFilter);
90 
94 
97 
98  using FunctorType = Functor::SquaredDifference2< typename TInputImage1::PixelType,
99  typename TInputImage2::PixelType,
100  typename TOutputImage::PixelType >;
101 
103  itkNewMacro(Self);
104 
106  itkTypeMacro(SquaredDifferenceImageFilter,
108 
109 #ifdef ITK_USE_CONCEPT_CHECKING
110  // Begin concept checking
111  itkConceptMacro( Input1ConvertibleToDoubleCheck,
113  itkConceptMacro( Input2ConvertibleToDoubleCheck,
115  itkConceptMacro( DoubleConvertibleToOutputCheck,
117  // End concept checking
118 #endif
119 
120 protected:
122  {
123 #if !defined( ITK_WRAPPING_PARSER )
125 #endif
126  }
127  ~SquaredDifferenceImageFilter() override = default;
128 };
129 } // end namespace itk
130 
131 #endif
bool operator==(const SquaredDifference2 &other) const
The base class for all process objects (source, filters, mappers) in the Insight data processing pipe...
Base class for all process objects that output image data.
~SquaredDifferenceImageFilter() override=default
Functor::SquaredDifference2< typename TInputImage1::PixelType, typename TInputImage2::PixelType, typename TOutputImage::PixelType > FunctorType
Implements pixel-wise generic operation of two images, or of an image and a constant.
bool operator!=(const SquaredDifference2 &) const
void SetFunctor(const std::function< ConstRefFunctionType > &f)
Implements pixel-wise the computation of squared difference.
TOutput operator()(const TInput1 &A, const TInput2 &B) const
#define itkConceptMacro(name, concept)