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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: 2005/11/25 15:50:35 $
00007   Version:   $Revision: 1.4 $
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 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   typedef typename TInputHistogram::FrequencyType FrequencyType;
00052 
00053   typedef typename NumericTraits<MeasurementType>::RealType MeanType;
00054   typedef typename NumericTraits<MeasurementType>::RealType VarianceType;
00055 
00056   typedef std::vector<MeanType> MeanVectorType;
00057   typedef std::vector<FrequencyType> FrequencyVectorType;
00058 
00059   typedef typename TInputHistogram::InstanceIdentifier InstanceIdentifierType;
00060   typedef std::vector<InstanceIdentifierType> InstanceIdentifierVectorType;
00061 
00063   itkTypeMacro(OtsuMultipleThresholdsCalculator, HistogramAlgorithmsBase);
00064   itkNewMacro(Self) ;
00066 
00068   typedef std::vector<MeasurementType> OutputType ;
00069 
00071   const OutputType& GetOutput() ;
00072 
00074   itkSetClampMacro(NumberOfThresholds, unsigned long, 1, NumericTraits<unsigned long>::max() );
00075   itkGetMacro(NumberOfThresholds,unsigned long);
00077 
00078 protected:
00079   OtsuMultipleThresholdsCalculator() ;
00080   virtual ~OtsuMultipleThresholdsCalculator() {}
00081   void PrintSelf(std::ostream& os, Indent indent) const;
00082                                                                                                                                       
00084   void GenerateData() ;
00085 
00087   bool IncrementThresholds(InstanceIdentifierVectorType& thresholdIds, MeanType totalMean, MeanVectorType& classMean, FrequencyVectorType& classFrequency);
00088 
00089 private:
00091   unsigned long m_NumberOfThresholds;
00092   OutputType m_Output ;
00093 
00094 } ; // end of class
00095                                                                                                                                       
00096 } // end of namespace itk
00097 
00098 #ifndef ITK_MANUAL_INSTANTIATION
00099 #include "itkOtsuMultipleThresholdsCalculator.txx"
00100 #endif
00101 
00102 #endif
00103 

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