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itkVariableDimensionHistogram.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkVariableDimensionHistogram.h,v $
00005   Language:  C++
00006   Date:      $Date: 2009-03-04 20:26:56 $
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 __itkVariableDimensionHistogram_h
00018 #define __itkVariableDimensionHistogram_h
00019 
00020 #include <vector>
00021 
00022 #include "itkIndex.h"
00023 #include "itkSize.h"
00024 #include "itkArray.h"
00025 #include "itkSample.h"
00026 #include "itkDenseFrequencyContainer.h"
00027 #include "itkSparseFrequencyContainer.h"
00028 
00029 namespace itk {
00030 namespace Statistics {
00031 
00066 template < class TMeasurement = float, 
00067            class TFrequencyContainer = DenseFrequencyContainer > 
00068 class ITK_EXPORT VariableDimensionHistogram 
00069   : public Sample < Array< TMeasurement > >
00070 {
00071 public:
00072 
00074   typedef VariableDimensionHistogram      Self;
00075   typedef Sample< Array< TMeasurement > > Superclass;
00076   typedef SmartPointer<Self>              Pointer;
00077   typedef SmartPointer<const Self>        ConstPointer;
00078 
00080   itkTypeMacro(VariableDimensionHistogram, Sample);
00081 
00083   itkNewMacro(Self);
00084 
00086   typedef TMeasurement MeasurementType;
00087 
00089   typedef typename Superclass::MeasurementVectorType     MeasurementVectorType;
00090   typedef typename Superclass::InstanceIdentifier        InstanceIdentifier;
00091   typedef typename Superclass::MeasurementVectorSizeType MeasurementVectorSizeType;
00092   typedef MeasurementVectorType                          ValueType;
00093 
00095   typedef TFrequencyContainer                      FrequencyContainerType;
00096   typedef typename FrequencyContainerType::Pointer FrequencyContainerPointer;
00097 
00099   typedef typename FrequencyContainerType::FrequencyType      FrequencyType;
00100   typedef typename FrequencyContainerType::TotalFrequencyType TotalFrequencyType;
00101 
00103   typedef itk::Array< long >             IndexType;
00104   typedef typename IndexType::ValueType  IndexValueType;
00105 
00107   typedef itk::Array< long >           SizeType;
00108   typedef typename SizeType::ValueType SizeValueType;
00109 
00111   typedef std::vector< MeasurementType >  BinMinVectorType;
00112   typedef std::vector< MeasurementType >  BinMaxVectorType;
00113   typedef std::vector< BinMinVectorType > BinMinContainerType;
00114   typedef std::vector< BinMaxVectorType > BinMaxContainerType;
00115 
00119   void Initialize(const SizeType &size);
00120 
00121 
00125   void Initialize(const SizeType &size, MeasurementVectorType& lowerBound,
00126                   MeasurementVectorType& upperBound);
00127 
00129   void SetToZero();
00130 
00134   bool GetIndex(const MeasurementVectorType & measurement,
00135                 IndexType & index ) const;
00136 
00140   const IndexType & GetIndex(const InstanceIdentifier &ident) const;
00141 
00144   itkGetMacro(ClipBinsAtEnds, bool);
00145 
00148   itkSetMacro(ClipBinsAtEnds, bool);
00149 
00152   bool IsIndexOutOfBounds(const IndexType &index) const;
00153 
00157   InstanceIdentifier GetInstanceIdentifier(const IndexType &index) const;
00158 
00160   unsigned int Size() const;
00161 
00163   SizeType GetSize() const
00164     { return m_Size; }
00165 
00167   SizeValueType GetSize(const unsigned int dimension) const
00168     {
00169     return m_Size[dimension]; 
00170     }
00171 
00173   const MeasurementType& GetBinMin(const unsigned int dimension, 
00174                              const unsigned long nbin) const
00175   { return m_Min[dimension][nbin]; }
00176 
00178   const MeasurementType& GetBinMax(const unsigned int dimension,
00179                              const unsigned long nbin) const
00180   { return m_Max[dimension][nbin]; }
00181 
00183   void SetBinMin(const unsigned int dimension, const unsigned long nbin,
00184                  const MeasurementType min)
00185     { m_Min[dimension][nbin] = min; }
00186 
00188   void SetBinMax(const unsigned int dimension, 
00189                  unsigned long nbin, const MeasurementType max)
00190   { m_Max[dimension][nbin] = max; }
00191 
00194   const MeasurementType& GetBinMinFromValue(const unsigned int dimension, 
00195                                       const float value ) const;
00196 
00199   const MeasurementType& GetBinMaxFromValue(const unsigned int dimension, 
00200                                       const float value ) const;
00201 
00203   const BinMinVectorType& GetDimensionMins(const unsigned int dimension) const
00204   { return m_Min[dimension]; }
00205 
00207   const BinMaxVectorType& GetDimensionMaxs(const unsigned int dimension) const
00208   {  return m_Max[dimension]; }
00209 
00211   const BinMinContainerType& GetMins() const
00212     { return m_Min; }
00213 
00215   const BinMaxContainerType& GetMaxs() const
00216     { return m_Max; }
00217 
00219   MeasurementVectorType& GetHistogramMinFromValue(const MeasurementVectorType 
00220                                                   &measurement); 
00221 
00223   MeasurementVectorType& GetHistogramMaxFromValue(const MeasurementVectorType 
00224                                                   &measurement); 
00225 
00227   MeasurementVectorType& GetHistogramMinFromIndex(const IndexType &index);
00228 
00230   MeasurementVectorType& GetHistogramMaxFromIndex(const IndexType &index); 
00231 
00233   FrequencyType GetFrequency(const InstanceIdentifier &ident) const
00234   { return m_FrequencyContainer->GetFrequency(ident); }
00235 
00237   FrequencyType GetFrequency(const IndexType &index) const;
00238 
00240   void SetFrequency(const FrequencyType value);
00241 
00244   bool SetFrequency(const InstanceIdentifier &ident, const FrequencyType value) 
00245   { return m_FrequencyContainer->SetFrequency(ident, value); }
00246 
00249   bool SetFrequency(const IndexType &index, 
00250                     const FrequencyType value);
00251 
00254   bool SetFrequency(const MeasurementVectorType &measurement, 
00255                     const FrequencyType value);
00256 
00257 
00261   bool IncreaseFrequency(const InstanceIdentifier &ident,
00262                          const FrequencyType value) 
00263   { return m_FrequencyContainer->IncreaseFrequency(ident, value); }
00264 
00268   bool IncreaseFrequency(const IndexType &index, 
00269                          const FrequencyType value);
00270 
00274   bool IncreaseFrequency(const MeasurementVectorType &measurement, 
00275                          const FrequencyType value);
00276 
00280   const MeasurementVectorType & GetMeasurementVector(const InstanceIdentifier &ident) const;
00281 
00283   const MeasurementVectorType & GetMeasurementVector(const IndexType &index) const;
00284 
00287   MeasurementType GetMeasurement(const unsigned long n,
00288                                   const unsigned int dimension) const;
00289 
00291   TotalFrequencyType GetTotalFrequency() const;
00292 
00294   FrequencyType GetFrequency(const unsigned long n,
00295                              const unsigned int dimension) const;
00296 
00312   double Quantile(const unsigned int dimension, const double &p) const;
00314 
00315 protected:
00316   void PrintSelf(std::ostream& os, Indent indent) const;
00317 
00318 public:
00321   class Iterator
00322     {
00323     public:
00324     Iterator(){};
00325     
00326     Iterator(Self * histogram) 
00327       { 
00328       m_Id = 0;
00329       m_Histogram = histogram; 
00330       } 
00331     
00332     Iterator(InstanceIdentifier ident, Self * histogram)
00333       : m_Id(ident), m_Histogram(histogram) {}
00334     
00335     FrequencyType GetFrequency() const
00336       { 
00337       return  m_Histogram->GetFrequency(m_Id);
00338       }
00339     
00340     bool SetFrequency(const FrequencyType value) 
00341       { 
00342       return m_Histogram->SetFrequency(m_Id, value); 
00343       }
00344 
00345     InstanceIdentifier GetInstanceIdentifier() const
00346       { return m_Id; }
00347 
00348     const MeasurementVectorType & GetMeasurementVector() const
00349       { 
00350       return m_Histogram->GetMeasurementVector(m_Id);
00351       } 
00352 
00353     Iterator& operator++() 
00354       { 
00355       ++m_Id; 
00356       return *this;
00357       }
00358     
00359     bool operator!=(const Iterator& it) 
00360       { return (m_Id != it.m_Id); }
00361     
00362     bool operator==(const Iterator& it) 
00363       { return (m_Id == it.m_Id); }
00364     
00365     Iterator& operator=(const Iterator& it)
00366       { 
00367       m_Id  = it.m_Id;
00368       m_Histogram = it.m_Histogram; 
00369       return *this;
00370       }
00371 
00372     Iterator(const Iterator& it)
00373       { 
00374       m_Id        = it.m_Id;
00375       m_Histogram = it.m_Histogram; 
00376       }
00377    
00378     private:
00379       // Iterator pointing DenseFrequencyContainer
00380       InstanceIdentifier m_Id;
00381       
00382       // Pointer of DenseFrequencyContainer
00383       Self* m_Histogram;
00384   }; // end of iterator class
00385 
00386   // Const Iterator
00387   class ConstIterator
00388     {
00389     public:
00390     ConstIterator(){};
00391     
00392     ConstIterator(const Self * histogram) 
00393       { 
00394       m_Id = 0;
00395       m_Histogram = histogram; 
00396       } 
00397     
00398     ConstIterator(InstanceIdentifier ident, const Self * histogram)
00399       : m_Id(ident), m_Histogram(histogram) {}
00400     
00401     FrequencyType GetFrequency() const
00402       { 
00403       return  m_Histogram->GetFrequency(m_Id);
00404       }
00405     
00406     bool SetFrequency(const FrequencyType value) 
00407       { 
00408       return m_Histogram->SetFrequency(m_Id, value); 
00409       }
00410 
00411     InstanceIdentifier GetInstanceIdentifier() const
00412       { return m_Id; }
00413 
00414     const MeasurementVectorType & GetMeasurementVector() const
00415       { 
00416       return m_Histogram->GetMeasurementVector(m_Id);
00417       } 
00418 
00419     ConstIterator& operator++() 
00420       { 
00421       ++m_Id; 
00422       return *this;
00423       }
00424     
00425     bool operator!=(const ConstIterator& it) 
00426       { return (m_Id != it.m_Id); }
00427     
00428     bool operator==(const ConstIterator& it) 
00429       { return (m_Id == it.m_Id); }
00430     
00431     ConstIterator& operator=(const ConstIterator& it)
00432       { 
00433       m_Id  = it.m_Id;
00434       m_Histogram = it.m_Histogram; 
00435       return *this;
00436       }
00437 
00438     ConstIterator(const ConstIterator & it)
00439       { 
00440       m_Id        = it.m_Id;
00441       m_Histogram = it.m_Histogram; 
00442       }
00443    
00444     private:
00445     // ConstIterator pointing DenseFrequencyContainer
00446     InstanceIdentifier m_Id;
00447     
00448     // Pointer of DenseFrequencyContainer
00449     const Self* m_Histogram;
00450   }; // end of iterator class
00451 
00452   Iterator  Begin()
00453     { 
00454     Iterator iter(0, this); 
00455     return iter;
00456     }
00457            
00458   Iterator  End()
00459     {
00460     return Iterator(m_OffsetTable[this->GetMeasurementVectorSize()], this);
00461     }
00462   
00463   ConstIterator  Begin() const
00464     { 
00465     ConstIterator iter(0, this); 
00466     return iter;
00467     }
00468            
00469   ConstIterator End() const
00470     {
00471     return ConstIterator(m_OffsetTable[this->GetMeasurementVectorSize()], this);
00472     }
00473 
00474 protected:
00475   VariableDimensionHistogram();
00476   virtual ~VariableDimensionHistogram() {}
00477 
00481   void SetMeasurementVectorSize( const MeasurementVectorSizeType );
00482 
00483   // The number of bins for each dimension
00484   SizeType m_Size;
00485   
00486 private:
00487   VariableDimensionHistogram(const Self&); //purposely not implemented
00488   void operator=(const Self&); //purposely not implemented
00489 
00490   Array< InstanceIdentifier > m_OffsetTable;
00491   FrequencyContainerPointer   m_FrequencyContainer;
00492   unsigned int                m_NumberOfInstances;
00493 
00494   // lower bound of each bin
00495   std::vector< std::vector<MeasurementType> > m_Min;
00496   
00497   // upper bound of each bin
00498   std::vector< std::vector<MeasurementType> > m_Max;
00499   
00500   mutable MeasurementVectorType   m_TempMeasurementVector;
00501   mutable IndexType               m_TempIndex;
00502 
00503   bool                            m_ClipBinsAtEnds;
00504 
00505 }; // end of class
00506 
00507 } // end of namespace Statistics 
00508 } // end of namespace itk 
00509 
00510 #ifndef ITK_MANUAL_INSTANTIATION
00511 #include "itkVariableDimensionHistogram.txx"
00512 #endif
00513 
00514 #endif
00515 

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