ITK  4.8.0
Insight Segmentation and Registration Toolkit
itkDivideImageFilter.h
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3  * Copyright Insight Software Consortium
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5  * Licensed under the Apache License, Version 2.0 (the "License");
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14  * See the License for the specific language governing permissions and
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17  *=========================================================================*/
18 #ifndef itkDivideImageFilter_h
19 #define itkDivideImageFilter_h
20 
22 #include "itkNumericTraits.h"
23 
24 namespace itk
25 {
26 namespace Functor
27 {
33 template< typename TInput1, typename TInput2, typename TOutput >
34 class Div
35 {
36 public:
37  Div() {}
38  ~Div() {}
39  bool operator!=(const Div &) const
40  {
41  return false;
42  }
44 
45  bool operator==(const Div & other) const
46  {
47  return !( *this != other );
48  }
49 
50  inline TOutput operator()(const TInput1 & A, const TInput2 & B) const
51  {
52  if ( B != (TInput2)0 )
53  {
54  return (TOutput)( A / B );
55  }
56  else
57  {
58  return NumericTraits< TOutput >::max( static_cast<TOutput>(A) );
59  }
60  }
61 };
62 }
80 template< typename TInputImage1, typename TInputImage2, typename TOutputImage >
82  public
83  BinaryFunctorImageFilter< TInputImage1, TInputImage2, TOutputImage,
84  Functor::Div<
85  typename TInputImage1::PixelType,
86  typename TInputImage2::PixelType,
87  typename TOutputImage::PixelType > >
88 {
89 public:
94 
98  typedef BinaryFunctorImageFilter< TInputImage1, TInputImage2, TOutputImage,
100  typename TInputImage1::PixelType,
101  typename TInputImage2::PixelType,
102  typename TOutputImage::PixelType >
104 
110 
114  itkNewMacro(Self);
115 
117  itkTypeMacro(DivideImageFilter,
119 
120 #ifdef ITK_USE_CONCEPT_CHECKING
121  // Begin concept checking
122  itkConceptMacro( IntConvertibleToInput2Check,
124  itkConceptMacro( Input1Input2OutputDivisionOperatorsCheck,
125  ( Concept::DivisionOperators< typename TInputImage1::PixelType,
126  typename TInputImage2::PixelType,
127  typename TOutputImage::PixelType > ) );
128  // End concept checking
129 #endif
130 
131 protected:
133  virtual ~DivideImageFilter() {}
134 
135  void GenerateData() ITK_OVERRIDE
136  {
137  const typename Superclass::DecoratedInput2ImagePixelType *input
138  = dynamic_cast< const typename Superclass::DecoratedInput2ImagePixelType * >(
139  this->ProcessObject::GetInput(1) );
140  if( input != ITK_NULLPTR && input->Get() == itk::NumericTraits< typename TInputImage2::PixelType >::ZeroValue() )
141  {
142  itkGenericExceptionMacro(<<"The constant value used as denominator should not be set to zero");
143  }
144  else
145  {
147  }
148  }
149 
150 private:
151  DivideImageFilter(const Self &); //purposely not implemented
152  void operator=(const Self &); //purposely not implemented
153 
154 };
155 } // end namespace itk
156 
157 #endif
virtual void GenerateData() override
Base class for all process objects that output image data.
bool operator==(const Div &other) const
static T max(const T &)
SimpleDataObjectDecorator< Input2ImagePixelType > DecoratedInput2ImagePixelType
SmartPointer< const Self > ConstPointer
DataObject * GetInput(const DataObjectIdentifierType &key)
Return an input.
TOutput operator()(const TInput1 &A, const TInput2 &B) const
bool operator!=(const Div &) const
#define itkConceptMacro(name, concept)
SmartPointer< Self > Pointer
Implements pixel-wise generic operation of two images, or of an image and a constant.
BinaryFunctorImageFilter< TInputImage1, TInputImage2, TOutputImage, Functor::Div< typename TInputImage1::PixelType, typename TInputImage2::PixelType, typename TOutputImage::PixelType > > Superclass
Pixel-wise division of two images.
void operator=(const Self &)