ITK  5.3.0
Insight Toolkit
itkLogImageFilter.h
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1 /*=========================================================================
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3  * Copyright NumFOCUS
4  *
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 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 true;
43  }
45 
47 
48  inline TOutput
49  operator()(const TInput & A) const
50  {
51  return static_cast<TOutput>(std::log(static_cast<double>(A)));
52  }
53 };
54 } // namespace Functor
55 
64 template <typename TInputImage, typename TOutputImage>
65 class ITK_TEMPLATE_EXPORT LogImageFilter : public UnaryGeneratorImageFilter<TInputImage, TOutputImage>
66 {
67 public:
68  ITK_DISALLOW_COPY_AND_MOVE(LogImageFilter);
69 
76 
78  itkNewMacro(Self);
79 
82 
83 #ifdef ITK_USE_CONCEPT_CHECKING
84  // Begin concept checking
87  // End concept checking
88 #endif
89 
90 protected:
92  {
93 #if !defined(ITK_WRAPPING_PARSER)
94  Superclass::SetFunctor(FunctorType());
95 #endif
96  }
97 
98  ~LogImageFilter() override = default;
99 };
100 } // end namespace itk
101 
102 #endif
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::LogImageFilter::LogImageFilter
LogImageFilter()
Definition: itkLogImageFilter.h:91
itk::Functor::Log::ITK_UNEQUAL_OPERATOR_MEMBER_FUNCTION
ITK_UNEQUAL_OPERATOR_MEMBER_FUNCTION(Log)
itk::Functor::Log::Log
Log()=default
itk::Functor::Log
Definition: itkLogImageFilter.h:34
itkConceptMacro
#define itkConceptMacro(name, concept)
Definition: itkConceptChecking.h:65
itk::Functor::Log::operator()
TOutput operator()(const TInput &A) const
Definition: itkLogImageFilter.h:49
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::LogImageFilter
Computes the log() of each pixel.
Definition: itkLogImageFilter.h:65
itkMath.h
itk::Functor::Log::operator==
bool operator==(const Log &) const
Definition: itkLogImageFilter.h:40