ITK  5.3.0
Insight Toolkit
itkSquaredDifferenceImageFilter.h
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18 #ifndef itkSquaredDifferenceImageFilter_h
19 #define itkSquaredDifferenceImageFilter_h
20 
22 
23 namespace itk
24 {
54 namespace Functor
55 {
56 template <typename TInput1, typename TInput2, typename TOutput>
58 {
59 public:
60  SquaredDifference2() = default;
61  ~SquaredDifference2() = default;
62  bool
64  {
65  return true;
66  }
68 
70 
71  inline TOutput
72  operator()(const TInput1 & A, 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 } // namespace Functor
82 
83 template <typename TInputImage1, typename TInputImage2, typename TOutputImage>
84 class ITK_TEMPLATE_EXPORT SquaredDifferenceImageFilter
85  : public BinaryGeneratorImageFilter<TInputImage1, TInputImage2, TOutputImage>
86 {
87 public:
88  ITK_DISALLOW_COPY_AND_MOVE(SquaredDifferenceImageFilter);
89 
93 
96 
97  using FunctorType = Functor::SquaredDifference2<typename TInputImage1::PixelType,
98  typename TInputImage2::PixelType,
99  typename TOutputImage::PixelType>;
100 
102  itkNewMacro(Self);
103 
106 
107 #ifdef ITK_USE_CONCEPT_CHECKING
108  // Begin concept checking
112  // End concept checking
113 #endif
114 
115 protected:
117  {
118 #if !defined(ITK_WRAPPING_PARSER)
119  Superclass::SetFunctor(FunctorType());
120 #endif
121  }
122  ~SquaredDifferenceImageFilter() override = default;
123 };
124 } // end namespace itk
125 
126 #endif
itk::SquaredDifferenceImageFilter
Implements pixel-wise the computation of squared difference.
Definition: itkSquaredDifferenceImageFilter.h:84
itk::Functor::SquaredDifference2::operator()
TOutput operator()(const TInput1 &A, const TInput2 &B) const
Definition: itkSquaredDifferenceImageFilter.h:72
itk::BinaryGeneratorImageFilter
Implements pixel-wise generic operation of two images, or of an image and a constant.
Definition: itkBinaryGeneratorImageFilter.h:56
itk::SmartPointer< Self >
itkBinaryGeneratorImageFilter.h
itk::Functor::SquaredDifference2::SquaredDifference2
SquaredDifference2()=default
itk::ImageSource
Base class for all process objects that output image data.
Definition: itkImageSource.h:67
itk::SquaredDifferenceImageFilter::SquaredDifferenceImageFilter
SquaredDifferenceImageFilter()
Definition: itkSquaredDifferenceImageFilter.h:116
itk::Functor::SquaredDifference2::ITK_UNEQUAL_OPERATOR_MEMBER_FUNCTION
ITK_UNEQUAL_OPERATOR_MEMBER_FUNCTION(SquaredDifference2)
itk::Functor::SquaredDifference2::~SquaredDifference2
~SquaredDifference2()=default
itkConceptMacro
#define itkConceptMacro(name, concept)
Definition: itkConceptChecking.h:65
itk
The "itk" namespace contains all Insight Segmentation and Registration Toolkit (ITK) classes....
Definition: itkAnnulusOperator.h:24
itk::ProcessObject
The base class for all process objects (source, filters, mappers) in the Insight data processing pipe...
Definition: itkProcessObject.h:138
itk::Concept::Convertible
Definition: itkConceptChecking.h:216
itk::Functor::SquaredDifference2
Definition: itkSquaredDifferenceImageFilter.h:57
itk::Functor::SquaredDifference2::operator==
bool operator==(const SquaredDifference2 &) const
Definition: itkSquaredDifferenceImageFilter.h:63