ITK  5.2.0
Insight Toolkit
itkLogImageFilter.h
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1 /*=========================================================================
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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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14  * See the License for the specific language governing permissions and
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18 #ifndef itkLogImageFilter_h
19 #define itkLogImageFilter_h
20 
22 #include "itkMath.h"
23 
24 namespace itk
25 {
26 namespace Functor
27 {
33 template <typename TInput, typename TOutput>
34 class Log
35 {
36 public:
37  Log() = default;
38  ~Log() = default;
39  bool
40  operator!=(const Log &) const
41  {
42  return false;
43  }
45 
46  bool
47  operator==(const Log & other) const
48  {
49  return !(*this != other);
50  }
51 
52  inline TOutput
53  operator()(const TInput & A) const
54  {
55  return static_cast<TOutput>(std::log(static_cast<double>(A)));
56  }
57 };
58 } // namespace Functor
59 
68 template <typename TInputImage, typename TOutputImage>
69 class LogImageFilter : public UnaryGeneratorImageFilter<TInputImage, TOutputImage>
70 {
71 public:
72  ITK_DISALLOW_COPY_AND_ASSIGN(LogImageFilter);
73 
80 
82  itkNewMacro(Self);
83 
86 
87 #ifdef ITK_USE_CONCEPT_CHECKING
88  // Begin concept checking
91  // End concept checking
92 #endif
93 
94 protected:
96  {
97 #if !defined(ITK_WRAPPING_PARSER)
99 #endif
100  }
101 
102  ~LogImageFilter() override = default;
103 };
104 } // end namespace itk
105 
106 #endif
itk::UnaryGeneratorImageFilter::SetFunctor
void SetFunctor(const std::function< ConstRefFunctionType > &f)
Definition: itkUnaryGeneratorImageFilter.h:92
itk::UnaryGeneratorImageFilter
Implements pixel-wise generic "operation" on one image.
Definition: itkUnaryGeneratorImageFilter.h:55
itk::SmartPointer< Self >
itkUnaryGeneratorImageFilter.h
itk::ImageSource
Base class for all process objects that output image data.
Definition: itkImageSource.h:67
itk::Functor::Log::~Log
~Log()=default
itk::Functor::Log::operator==
bool operator==(const Log &other) const
Definition: itkLogImageFilter.h:47
itk::LogImageFilter::LogImageFilter
LogImageFilter()
Definition: itkLogImageFilter.h:95
itk::Functor::Log::Log
Log()=default
itk::Functor::Log
Definition: itkLogImageFilter.h:34
itk::Functor::Log::operator!=
bool operator!=(const Log &) const
Definition: itkLogImageFilter.h:40
itkConceptMacro
#define itkConceptMacro(name, concept)
Definition: itkConceptChecking.h:64
itk::Functor::Log::operator()
TOutput operator()(const TInput &A) const
Definition: itkLogImageFilter.h:53
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:214
itk::LogImageFilter
Computes the log() of each pixel.
Definition: itkLogImageFilter.h:69
itk::LogImageFilter::FunctorType
Functor::Log< typename TInputImage::PixelType, typename TOutputImage::PixelType > FunctorType
Definition: itkLogImageFilter.h:79
itkMath.h
itk::LogImageFilter::~LogImageFilter
~LogImageFilter() override=default