ITK  5.0.0
Insight Segmentation and Registration Toolkit
itkHistogramToProbabilityImageFilter.h
Go to the documentation of this file.
1 /*=========================================================================
2  *
3  * Copyright Insight Software Consortium
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0.txt
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  *
17  *=========================================================================*/
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  using OutputPixelType = TOutput;
59 
61  {}
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  ITK_DISALLOW_COPY_AND_ASSIGN(HistogramToProbabilityImageFilter);
93 
96 
98  using Superclass = HistogramToImageFilter< THistogram, TImage,
100 
103 
106 
108  itkNewMacro(Self);
109 
110 protected:
112  ~HistogramToProbabilityImageFilter() override = default;
113 };
114 } // end namespace itk
115 
116 #endif
Light weight base class for most itk classes.
~HistogramToProbabilityImageFilter() override=default
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:83
This class takes a histogram as an input and returns an image of type specified by the functor...