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itkBSplineDecompositionImageFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkBSplineDecompositionImageFilter.h,v $
00005   Language:  C++
00006   Date:      $Date: 2003/09/10 14:28:43 $
00007   Version:   $Revision: 1.6 $
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   Portions of this code are covered under the VTK copyright.
00013   See VTKCopyright.txt or http://www.kitware.com/VTKCopyright.htm for details.
00014 
00015      This software is distributed WITHOUT ANY WARRANTY; without even 
00016      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00017      PURPOSE.  See the above copyright notices for more information.
00018 
00019 =========================================================================*/
00020 
00021 #ifndef __itkBSplineDecompositionImageFilter_h
00022 #define __itkBSplineDecompositionImageFilter_h
00023 
00024 #include <vector>
00025 
00026 #include "itkImageLinearIteratorWithIndex.h"
00027 #include "vnl/vnl_matrix.h"
00028 
00029 #include "itkImageToImageFilter.h"
00030 
00031 namespace itk
00032 {
00065 template <class TInputImage, class TOutputImage>
00066 class ITK_EXPORT BSplineDecompositionImageFilter : 
00067     public ImageToImageFilter<TInputImage,TOutputImage>
00068 {
00069 public:
00071   typedef BSplineDecompositionImageFilter       Self;
00072   typedef ImageToImageFilter<TInputImage,TOutputImage>  Superclass;
00073   typedef SmartPointer<Self>                    Pointer;
00074   typedef SmartPointer<const Self>              ConstPointer;
00075 
00077   itkTypeMacro(BSplineDecompositionImageFilter, ImageToImageFilter);
00078  
00080   itkNewMacro( Self );
00081 
00083   typedef typename Superclass::InputImageType InputImageType;
00084   typedef typename Superclass::InputImagePointer InputImagePointer;
00085   typedef typename Superclass::InputImageConstPointer InputImageConstPointer;
00086   typedef typename Superclass::OutputImagePointer OutputImagePointer;
00087 
00089   itkStaticConstMacro(ImageDimension, unsigned int,TInputImage::ImageDimension);
00090 
00092   typedef itk::ImageLinearIteratorWithIndex<TOutputImage> OutputLinearIterator;
00093 
00096   void SetSplineOrder(unsigned int SplineOrder);
00097   itkGetMacro(SplineOrder, int);
00098 
00099 
00100 protected:
00101   BSplineDecompositionImageFilter();
00102   virtual ~BSplineDecompositionImageFilter() {};
00103   void PrintSelf(std::ostream& os, Indent indent) const;
00104 
00105   void GenerateData( );
00106 
00108   void GenerateInputRequestedRegion();
00109 
00111   void EnlargeOutputRequestedRegion( DataObject *output ); 
00112 
00114   std::vector<double>       m_Scratch;       // temp storage for processing of Coefficients
00115   typename TInputImage::SizeType   m_DataLength;  // Image size
00116   unsigned int              m_SplineOrder;   // User specified spline order (3rd or cubic is the default)
00117   double                    m_SplinePoles[3];// Poles calculated for a given spline order
00118   int                       m_NumberOfPoles; // number of poles
00119   double                    m_Tolerance;     // Tolerance used for determining initial causal coefficient
00120   unsigned int              m_IteratorDirection; // Direction for iterator incrementing
00121 
00122 
00123 private:
00124   BSplineDecompositionImageFilter( const Self& ); //purposely not implemented
00125   void operator=( const Self& ); //purposely not implemented
00126 
00128   virtual void SetPoles();
00129 
00131   virtual bool DataToCoefficients1D();
00132 
00135   void DataToCoefficientsND();
00136 
00138   virtual void SetInitialCausalCoefficient(double z);
00139 
00141   virtual void SetInitialAntiCausalCoefficient(double z);
00142 
00144   void CopyImageToImage();
00145 
00147   void CopyCoefficientsToScratch( OutputLinearIterator & );
00148 
00150   void CopyScratchToCoefficients( OutputLinearIterator & );
00151   
00152 };
00153 
00154 
00155 } // namespace itk
00156 
00157 #ifndef ITK_MANUAL_INSTANTIATION
00158 #include "itkBSplineDecompositionImageFilter.txx"
00159 #endif
00160 
00161 #endif
00162 

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