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itkOtsuMultipleThresholdsCalculator.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkOtsuMultipleThresholdsCalculator.h,v $
00005   Language:  C++
00006   Date:      $Date: 2009-05-12 17:26:21 $
00007   Version:   $Revision: 1.8 $
00008 
00009   Copyright (c) Insight Software Consortium. All rights reserved.
00010   See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
00011 
00012      This software is distributed WITHOUT ANY WARRANTY; without even 
00013      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00014      PURPOSE.  See the above copyright notices for more information.
00015 
00016 =========================================================================*/
00017 #ifndef __itkOtsuMultipleThresholdsCalculator_h
00018 #define __itkOtsuMultipleThresholdsCalculator_h
00019 
00020 #include "itkHistogramAlgorithmBase.h"
00021 #include "itkHistogram.h"
00022 
00023 namespace itk
00024 {
00025 
00039 template< class TInputHistogram >
00040 class ITK_EXPORT OtsuMultipleThresholdsCalculator :
00041       public HistogramAlgorithmBase< TInputHistogram >
00042 {
00043 public:
00045   typedef OtsuMultipleThresholdsCalculator        Self;
00046   typedef HistogramAlgorithmBase<TInputHistogram> Superclass;
00047   typedef SmartPointer<Self>                      Pointer;
00048   typedef SmartPointer<const Self>                ConstPointer;
00049 
00050   typedef typename TInputHistogram::MeasurementType MeasurementType;
00051 
00052 #ifdef ITK_USE_REVIEW_STATISTICS
00053   typedef typename TInputHistogram::AbsoluteFrequencyType   FrequencyType;
00054 #else
00055   typedef typename TInputHistogram::FrequencyType   FrequencyType;
00056 #endif
00057 
00058   typedef typename NumericTraits<MeasurementType>::RealType MeanType;
00059   typedef typename NumericTraits<MeasurementType>::RealType VarianceType;
00060 
00061   typedef std::vector<MeanType>      MeanVectorType;
00062   typedef std::vector<FrequencyType> FrequencyVectorType;
00063 
00064   typedef typename TInputHistogram::InstanceIdentifier InstanceIdentifierType;
00065   typedef std::vector<InstanceIdentifierType>          InstanceIdentifierVectorType;
00066 
00068   itkTypeMacro(OtsuMultipleThresholdsCalculator, HistogramAlgorithmsBase);
00069   itkNewMacro(Self);
00071 
00073   typedef std::vector<MeasurementType> OutputType;
00074 
00076   const OutputType& GetOutput();
00077 
00079   itkSetClampMacro(NumberOfThresholds, unsigned long, 1, NumericTraits<unsigned long>::max() );
00080   itkGetConstMacro(NumberOfThresholds,unsigned long);
00082 
00083 protected:
00084   OtsuMultipleThresholdsCalculator();
00085   virtual ~OtsuMultipleThresholdsCalculator() {}
00086   void PrintSelf(std::ostream& os, Indent indent) const;
00087                                                                                                                                       
00089   void GenerateData();
00090 
00092   bool IncrementThresholds(InstanceIdentifierVectorType& thresholdIds, MeanType totalMean, MeanVectorType& classMean, FrequencyVectorType& classFrequency);
00093 
00094 private:
00096   unsigned long m_NumberOfThresholds;
00097   OutputType    m_Output;
00098 
00099 }; // end of class
00100                                                                                                                                       
00101 } // end of namespace itk
00102 
00103 #ifndef ITK_MANUAL_INSTANTIATION
00104 #include "itkOtsuMultipleThresholdsCalculator.txx"
00105 #endif
00106 
00107 #endif
00108 

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