ITK  4.6.0
Insight Segmentation and Registration Toolkit
itkHistogramToProbabilityImageFilter.h
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18 #ifndef __itkHistogramToProbabilityImageFilter_h
19 #define __itkHistogramToProbabilityImageFilter_h
20 
22 
23 namespace itk
24 {
47 namespace Function
48 {
49 template< typename TInput, typename TOutput = float >
51 {
52 public:
53 
54  //Probability function = Number of occurrences in each bin /
55  // Total Number of occurrences.
56  //
57  // Returns pixels of float..
58  typedef TOutput OutputPixelType;
59 
61  m_TotalFrequency(1) {}
62 
64 
65  inline OutputPixelType operator()(const TInput & A) const
66  {
67  return static_cast< OutputPixelType >( static_cast< OutputPixelType >( A )
68  / static_cast< OutputPixelType >( m_TotalFrequency ) );
69  }
70 
72  {
73  m_TotalFrequency = n;
74  }
75 
77  {
78  return m_TotalFrequency;
79  }
80 
81 private:
83 };
84 }
85 
86 template< typename THistogram, typename TImage=Image< float, 3> >
88  public HistogramToImageFilter< THistogram, TImage,
89  Function::HistogramProbabilityFunction< SizeValueType, typename TImage::PixelType > >
90 {
91 public:
92 
95 
97  typedef HistogramToImageFilter< THistogram, TImage,
100 
103 
106 
108  itkNewMacro(Self);
109 
110 protected:
113 
114 private:
115  HistogramToProbabilityImageFilter(const Self &); //purposely not implemented
116  void operator=(const Self &); //purposely not implemented
117 };
118 } // end namespace itk
119 
120 #endif
Light weight base class for most itk classes.
The class takes a histogram as an input and gives the probability image as the output. A pixel, at position I, in the output image is given by.
unsigned long SizeValueType
Definition: itkIntTypes.h:143
HistogramToImageFilter< THistogram, TImage, Function::HistogramProbabilityFunction< SizeValueType, typename TImage::PixelType > > Superclass
This class takes a histogram as an input and returns an image of type specified by the functor...