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itkScalarImageKmeansImageFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkScalarImageKmeansImageFilter.h,v $
00005   Language:  C++
00006   Date:      $Date: 2009-01-26 21:45:57 $
00007   Version:   $Revision: 1.5 $
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 __itkScalarImageKmeansImageFilter_h
00018 #define __itkScalarImageKmeansImageFilter_h
00019 
00020 #include "itkImageToImageFilter.h"
00021 #include "itkImage.h"
00022 #include "itkNumericTraits.h"
00023 
00024 #include "itkKdTree.h"
00025 #include "itkKdTreeBasedKmeansEstimator.h"
00026 #include "itkWeightedCentroidKdTreeGenerator.h"
00027 
00028 #include "itkMinimumDecisionRule.h"
00029 #include "itkEuclideanDistance.h"
00030 #include "itkSampleClassifier.h"
00031 
00032 #include "itkScalarImageToListAdaptor.h"
00033 #include "itkImageRegion.h"
00034 #include "itkRegionOfInterestImageFilter.h"
00035 
00036 #include <vector>
00037 
00038 namespace itk
00039 {
00061 template <class TInputImage >
00062 class ITK_EXPORT ScalarImageKmeansImageFilter :
00063     public ImageToImageFilter< TInputImage, Image<unsigned char,
00064              ::itk::GetImageDimension<TInputImage>::ImageDimension> >
00065 {
00066 public:
00068   itkStaticConstMacro(ImageDimension, unsigned int,
00069                       TInputImage::ImageDimension);
00070 
00072   typedef TInputImage InputImageType;
00073   typedef Image<unsigned char,
00074              ::itk::GetImageDimension<TInputImage>::ImageDimension> OutputImageType;
00075 
00077   typedef ScalarImageKmeansImageFilter                         Self;
00078   typedef ImageToImageFilter< InputImageType, OutputImageType> Superclass;
00079   typedef SmartPointer<Self>                                   Pointer;
00080   typedef SmartPointer<const Self>                             ConstPointer;
00081 
00083   itkNewMacro(Self);
00084 
00086   itkTypeMacro(ScalarImageKmeansImageFilter, ImageToImageFilter);
00087 
00089   typedef typename InputImageType::PixelType  InputPixelType;
00090   typedef typename OutputImageType::PixelType OutputPixelType;
00091 
00093   typedef typename NumericTraits< InputPixelType >::RealType RealPixelType;
00094 
00096   typedef itk::Statistics::ScalarImageToListAdaptor< 
00097                                    InputImageType > AdaptorType;
00098 
00100   typedef typename AdaptorType::MeasurementVectorType  MeasurementVectorType;
00101 
00103   typedef itk::Statistics::WeightedCentroidKdTreeGenerator< 
00104                                                       AdaptorType > 
00105                                                                 TreeGeneratorType;
00106   typedef typename TreeGeneratorType::KdTreeType                TreeType;
00107   typedef itk::Statistics::KdTreeBasedKmeansEstimator<TreeType> EstimatorType;
00108 
00109   typedef typename EstimatorType::ParametersType ParametersType;
00110 
00111   typedef typename InputImageType::RegionType        ImageRegionType;
00112   
00113   typedef RegionOfInterestImageFilter< 
00114                                  InputImageType,
00115                                  InputImageType  > RegionOfInterestFilterType;
00116 
00117 
00119   void AddClassWithInitialMean( RealPixelType mean );
00120 
00122   itkGetConstReferenceMacro( FinalMeans, ParametersType );
00123 
00129   itkSetMacro( UseNonContiguousLabels, bool );
00130   itkGetConstReferenceMacro( UseNonContiguousLabels, bool );
00131   itkBooleanMacro( UseNonContiguousLabels );
00133 
00135   void SetImageRegion( const ImageRegionType & region );
00136 
00138   itkGetConstReferenceMacro( ImageRegion, ImageRegionType );
00139 
00140 #ifdef ITK_USE_CONCEPT_CHECKING
00141 
00142   itkConceptMacro(InputHasNumericTraitsCheck,
00143                   (Concept::HasNumericTraits<InputPixelType>));
00144 
00146 #endif
00147 
00148 protected:
00149   ScalarImageKmeansImageFilter();
00150   virtual ~ScalarImageKmeansImageFilter() {}
00151   void PrintSelf(std::ostream& os, Indent indent) const;
00152 
00158   void GenerateData();
00159 
00160 private:
00161   ScalarImageKmeansImageFilter(const Self&); //purposely not implemented
00162   void operator=(const Self&); //purposely not implemented
00163 
00164   typedef std::vector< RealPixelType > MeansContainer;
00165 
00166   MeansContainer  m_InitialMeans;
00167 
00168   ParametersType  m_FinalMeans;
00169 
00170   bool m_UseNonContiguousLabels;
00171 
00172   ImageRegionType m_ImageRegion;
00173 
00174   bool m_ImageRegionDefined;
00175 };
00176   
00177 } // end namespace itk
00178 
00179 #ifndef ITK_MANUAL_INSTANTIATION
00180 #include "itkScalarImageKmeansImageFilter.txx"
00181 #endif
00182 
00183 #endif
00184 

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