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itkGradientRecursiveGaussianImageFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkGradientRecursiveGaussianImageFilter.h,v $
00005   Language:  C++
00006   Date:      $Date: 2003/09/10 14:28:48 $
00007   Version:   $Revision: 1.31 $
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 __itkGradientRecursiveGaussianImageFilter_h
00018 #define __itkGradientRecursiveGaussianImageFilter_h
00019 
00020 #include "itkRecursiveGaussianImageFilter.h"
00021 #include "itkNthElementImageAdaptor.h"
00022 #include "itkImage.h"
00023 #include "itkPixelTraits.h"
00024 #include "itkCommand.h"
00025 
00026 
00027 namespace itk
00028 {
00029 
00041 // NOTE that the ITK_TYPENAME macro has to be used here in lieu 
00042 // of "typename" because VC++ doesn't like the typename keyword 
00043 // on the defaults of template parameters
00044 template <typename TInputImage, 
00045           typename TOutputImage= Image< CovariantVector< 
00046   ITK_TYPENAME NumericTraits< ITK_TYPENAME TInputImage::PixelType>::RealType,
00047   ::itk::GetImageDimension<TInputImage>::ImageDimension >,
00048                                         ::itk::GetImageDimension<TInputImage>::ImageDimension > >
00049 class ITK_EXPORT GradientRecursiveGaussianImageFilter:
00050     public ImageToImageFilter<TInputImage,TOutputImage>
00051 {
00052 public:
00054   typedef GradientRecursiveGaussianImageFilter  Self;
00055   typedef ImageToImageFilter<TInputImage,TOutputImage> Superclass;
00056   typedef SmartPointer<Self>                   Pointer;
00057   typedef SmartPointer<const Self>        ConstPointer;
00058   
00059   
00061   typedef TInputImage                                    InputImageType;
00062   typedef typename TInputImage::PixelType                PixelType;
00063   typedef typename NumericTraits<PixelType>::RealType    RealType;
00064 
00065 
00067   itkStaticConstMacro(ImageDimension, unsigned int,
00068                       TInputImage::ImageDimension);
00069 
00074   typedef float                                            InternalRealType;
00075   typedef Image<InternalRealType, 
00076                 itkGetStaticConstMacro(ImageDimension) >   RealImageType;
00077 
00078 
00079 
00080 
00085   typedef NthElementImageAdaptor< TOutputImage,
00086                                   InternalRealType >  OutputImageAdaptorType;
00087   typedef typename OutputImageAdaptorType::Pointer OutputImageAdaptorPointer;
00088 
00090   typedef RecursiveGaussianImageFilter<
00091     RealImageType,
00092     RealImageType
00093     >    GaussianFilterType;
00094 
00096   typedef RecursiveGaussianImageFilter<
00097     InputImageType,
00098     RealImageType
00099     >    DerivativeFilterType;
00100 
00101 
00103   typedef typename GaussianFilterType::Pointer    GaussianFilterPointer;
00104 
00106   typedef typename DerivativeFilterType::Pointer  DerivativeFilterPointer;
00107 
00109   typedef typename TOutputImage::Pointer          OutputImagePointer;                                  
00110 
00111 
00113   typedef TOutputImage      OutputImageType;
00114   typedef typename          OutputImageType::PixelType      OutputPixelType;
00115   typedef typename PixelTraits<OutputPixelType>::ValueType  OutputComponentType;
00116 
00118   typedef          MemberCommand< Self >     CommandType;  
00119   typedef typename CommandType::Pointer      CommandPointer;
00120 
00122   itkNewMacro(Self);
00123 
00125   void SetSigma( RealType sigma );
00126 
00128   void SetNormalizeAcrossScale( bool normalizeInScaleSpace );
00129   itkGetMacro( NormalizeAcrossScale, bool );
00130 
00136   virtual void GenerateInputRequestedRegion() throw(InvalidRequestedRegionError);
00137 
00138 protected:
00139   GradientRecursiveGaussianImageFilter();
00140   virtual ~GradientRecursiveGaussianImageFilter() {};
00141   void PrintSelf(std::ostream& os, Indent indent) const;
00142   
00144   void GenerateData( void );
00145 
00146   // Override since the filter produces the entire dataset
00147   void EnlargeOutputRequestedRegion(DataObject *output);
00148 
00150   void ReportProgress(const Object * object, const EventObject & event );
00151 
00152 private:
00153   GradientRecursiveGaussianImageFilter(const Self&); //purposely not implemented
00154   void operator=(const Self&); //purposely not implemented
00155   
00156   GaussianFilterPointer         m_SmoothingFilters[ImageDimension-1];
00157   DerivativeFilterPointer       m_DerivativeFilter;
00158   OutputImageAdaptorPointer     m_ImageAdaptor;
00159 
00160   CommandPointer                m_ProgressCommand;
00161   float                         m_Progress;
00162 
00164   bool m_NormalizeAcrossScale; 
00165 
00166 };
00167 
00168 } // end namespace itk
00169 
00170 #ifndef ITK_MANUAL_INSTANTIATION
00171 #include "itkGradientRecursiveGaussianImageFilter.txx"
00172 #endif
00173 
00174 #endif
00175 
00176 
00177 
00178 

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