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itkWeightedMeanSampleFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkWeightedMeanSampleFilter.h,v $
00005   Language:  C++
00006   Date:      $Date: 2009-05-02 05:44:00 $
00007   Version:   $Revision: 1.1 $
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 
00018 #ifndef __itkWeightedMeanSampleFilter_h
00019 #define __itkWeightedMeanSampleFilter_h
00020 
00021 #include "itkMeanSampleFilter.h"
00022 #include "itkFunctionBase.h"
00023 #include "itkDataObjectDecorator.h"
00024 
00025 namespace itk { 
00026 namespace Statistics {
00027   
00039 template< class TSample >
00040 class ITK_EXPORT WeightedMeanSampleFilter : public MeanSampleFilter< TSample >
00041 {
00042 public:
00044   typedef WeightedMeanSampleFilter                Self;
00045   typedef MeanSampleFilter< TSample >             Superclass;
00046   typedef SmartPointer<Self>                      Pointer;
00047   typedef SmartPointer<const Self>                ConstPointer;
00048 
00050   itkTypeMacro(WeightedMeanSampleFilter, MeanSampleFilter);
00051   itkNewMacro(Self);
00053 
00055   itkSuperclassTraitMacro( SampleType )
00056   itkSuperclassTraitMacro( MeasurementType )
00057   itkSuperclassTraitMacro( MeasurementVectorType )
00058   itkSuperclassTraitMacro( MeasurementVectorSizeType )
00059   itkSuperclassTraitMacro( MeasurementVectorDecoratedType )
00060   itkSuperclassTraitMacro( OutputType )
00061 
00063   typedef Array< double > WeightArrayType;
00064 
00066   typedef SimpleDataObjectDecorator< WeightArrayType > InputWeightArrayObjectType;
00067 
00069   itkSetDecoratedInputMacro( Weights, WeightArrayType, 1 );
00070 
00072   typedef FunctionBase< MeasurementVectorType, double > WeightingFunctionType;
00073 
00075   typedef DataObjectDecorator< WeightingFunctionType > InputWeightingFunctionObjectType;
00076 
00078   itkSetDecoratedObjectInputMacro( WeightingFunction, WeightingFunctionType, 2 );
00079 
00080 protected:
00081   WeightedMeanSampleFilter();
00082   virtual ~WeightedMeanSampleFilter();
00083   void PrintSelf(std::ostream& os, Indent indent) const;
00084 
00085   void GenerateData();
00086 
00087   // compute mean with weight array
00088   void ComputeMeanWithWeights();
00089 
00090   // compute mean using a weighting function
00091   void ComputeMeanWithWeightingFunction();
00092 
00093 private:
00094   WeightedMeanSampleFilter(const Self&); //purposely not implemented
00095   void operator=(const Self&); //purposely not implemented
00096 
00097 }; // end of class
00098     
00099 } // end of namespace Statistics 
00100 } // end of namespace itk 
00101 
00102 #ifndef ITK_MANUAL_INSTANTIATION
00103 #include "itkWeightedMeanSampleFilter.txx"
00104 #endif
00105 
00106 #endif
00107 

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