ITK  6.0.0
Insight Toolkit
itkRGBToLuminanceImageFilter.h
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3  * Copyright NumFOCUS
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5  * Licensed under the Apache License, Version 2.0 (the "License");
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18 #ifndef itkRGBToLuminanceImageFilter_h
19 #define itkRGBToLuminanceImageFilter_h
20 
22 
23 namespace itk
24 {
37 namespace Functor
38 {
39 template <typename TInput, typename TOutput>
41 {
42 public:
43  using ComponentType = typename TInput::ComponentType;
45 
46  bool
47  operator==(const RGBToLuminance &) const
48  {
49  return true;
50  }
51 
53 
54  inline TOutput
55  operator()(const TInput & A) const
56  {
57  return static_cast<TOutput>(A.GetLuminance());
58  }
59 };
60 } // namespace Functor
61 
62 template <typename TInputImage, typename TOutputImage>
63 class ITK_TEMPLATE_EXPORT RGBToLuminanceImageFilter : public UnaryGeneratorImageFilter<TInputImage, TOutputImage>
64 {
65 public:
66  ITK_DISALLOW_COPY_AND_MOVE(RGBToLuminanceImageFilter);
67 
74 
76  itkNewMacro(Self);
77 
79  itkOverrideGetNameOfClassMacro(RGBToLuminanceImageFilter);
80 
81 #ifdef ITK_USE_CONCEPT_CHECKING
82  // Begin concept checking
83  itkConceptMacro(InputHasNumericTraitsCheck,
85  // End concept checking
86 #endif
87 
88 protected:
90  {
91 #if !defined(ITK_WRAPPING_PARSER)
92  Superclass::SetFunctor(FunctorType());
93 #endif
94  }
95  ~RGBToLuminanceImageFilter() override = default;
96 };
97 } // end namespace itk
98 
99 #endif
itk::Concept::HasNumericTraits
Definition: itkConceptChecking.h:716
itk::UnaryGeneratorImageFilter
Implements pixel-wise generic "operation" on one image.
Definition: itkUnaryGeneratorImageFilter.h:55
itk::SmartPointer< Self >
itk::Functor::RGBToLuminance::operator()
TOutput operator()(const TInput &A) const
Definition: itkRGBToLuminanceImageFilter.h:55
itk::Functor::RGBToLuminance
Definition: itkRGBToLuminanceImageFilter.h:40
itk::Functor::RGBToLuminance::ComponentType
typename TInput::ComponentType ComponentType
Definition: itkRGBToLuminanceImageFilter.h:43
itkUnaryGeneratorImageFilter.h
itk::Functor::RGBToLuminance::RealType
typename itk::NumericTraits< ComponentType >::RealType RealType
Definition: itkRGBToLuminanceImageFilter.h:44
itk::ImageSource
Base class for all process objects that output image data.
Definition: itkImageSource.h:67
itk::RGBToLuminanceImageFilter::RGBToLuminanceImageFilter
RGBToLuminanceImageFilter()
Definition: itkRGBToLuminanceImageFilter.h:89
FunctorType
Functor::Add2< typename TInputImage1::PixelType, typename TInputImage2::PixelType, typename TOutputImage::PixelType > FunctorType
Definition: itkAddImageFilter.h:97
itk::Functor::RGBToLuminance::operator==
bool operator==(const RGBToLuminance &) const
Definition: itkRGBToLuminanceImageFilter.h:47
itk::RGBToLuminanceImageFilter
Converts an RGB image into a grayscale image.
Definition: itkRGBToLuminanceImageFilter.h:63
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:139
itk::NumericTraits::RealType
double RealType
Definition: itkNumericTraits.h:86
itk::Functor::RGBToLuminance::ITK_UNEQUAL_OPERATOR_MEMBER_FUNCTION
ITK_UNEQUAL_OPERATOR_MEMBER_FUNCTION(RGBToLuminance)