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itkDifferenceImageFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkDifferenceImageFilter.h,v $
00005   Language:  C++
00006   Date:      $Date: 2002/09/04 13:13:22 $
00007   Version:   $Revision: 1.4 $
00008 
00009   Copyright (c) 2002 Insight 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 __itkDifferenceImageFilter_h
00018 #define __itkDifferenceImageFilter_h
00019 
00020 #include "itkImageToImageFilter.h"
00021 #include "itkNumericTraits.h"
00022 #include "itkArray.h"
00023 
00024 namespace itk
00025 {
00026   
00035 template <class TInputImage, class TOutputImage>
00036 class ITK_EXPORT DifferenceImageFilter :
00037     public ImageToImageFilter<TInputImage, TOutputImage> 
00038 {
00039 public:
00041   typedef DifferenceImageFilter  Self;
00042   typedef ImageToImageFilter<TInputImage,TOutputImage>  Superclass;
00043   typedef SmartPointer<Self>   Pointer;
00044   typedef SmartPointer<const Self>  ConstPointer;
00045 
00047   itkNewMacro(Self);
00048   
00050   itkTypeMacro(DifferenceImageFilter, ImageToImageFilter);
00051   
00053   typedef TInputImage InputImageType;
00054   typedef TOutputImage OutputImageType;
00055   typedef typename OutputImageType::PixelType OutputPixelType;
00056   typedef typename OutputImageType::RegionType OutputImageRegionType;
00057   typedef typename NumericTraits<OutputPixelType>::RealType RealType;
00058   typedef typename NumericTraits<RealType>::AccumulateType AccumulateType;  
00059   
00061   virtual void SetValidInput(const InputImageType* validImage);
00062   
00064   virtual void SetTestInput(const InputImageType* testImage);
00065   
00068   itkSetMacro(ToleranceRadius, int);
00069   itkGetMacro(ToleranceRadius, int);
00070   
00073   itkSetMacro(DifferenceThreshold, OutputPixelType);
00074   itkGetMacro(DifferenceThreshold, OutputPixelType);
00075   
00077   itkGetMacro(MeanDifference, RealType);
00078   itkGetMacro(TotalDifference, AccumulateType);
00079   
00080 protected:
00081   DifferenceImageFilter();
00082   virtual ~DifferenceImageFilter() {}
00083   
00084   void PrintSelf(std::ostream& os, Indent indent) const;
00085 
00097   void ThreadedGenerateData(const OutputImageRegionType& threadRegion,
00098                             int threadId);
00099   
00100   void BeforeThreadedGenerateData();
00101   void AfterThreadedGenerateData();
00102   
00103   OutputPixelType m_DifferenceThreshold;
00104   RealType m_MeanDifference;
00105   AccumulateType m_TotalDifference;
00106   int m_ToleranceRadius;
00107   
00108   Array<AccumulateType> m_ThreadDifferenceSum;
00109   
00110 private:
00111   DifferenceImageFilter(const Self&); //purposely not implemented
00112   void operator=(const Self&); //purposely not implemented
00113 };
00114 
00115 } // end namespace itk
00116 
00117 #ifndef ITK_MANUAL_INSTANTIATION
00118 #include "itkDifferenceImageFilter.txx"
00119 #endif
00120 
00121 #endif

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