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itkRecursiveGaussianImageFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkRecursiveGaussianImageFilter.h,v $
00005   Language:  C++
00006   Date:      $Date: 2003/12/22 21:33:31 $
00007   Version:   $Revision: 1.23 $
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 __itkRecursiveGaussianImageFilter_h
00018 #define __itkRecursiveGaussianImageFilter_h
00019 
00020 #include "itkRecursiveSeparableImageFilter.h"
00021 
00022 namespace itk
00023 {
00024   
00046 template <typename TInputImage, typename TOutputImage=TInputImage>
00047 class ITK_EXPORT RecursiveGaussianImageFilter :
00048     public RecursiveSeparableImageFilter<TInputImage,TOutputImage> 
00049 {
00050 public:
00052   typedef RecursiveGaussianImageFilter  Self;
00053   typedef RecursiveSeparableImageFilter<TInputImage,TOutputImage> Superclass;
00054   typedef SmartPointer<Self>   Pointer;
00055   typedef SmartPointer<const Self>  ConstPointer;
00056 
00057   typedef typename Superclass::RealType      RealType;
00058 
00060   itkNewMacro(Self);
00061   
00063   itkTypeMacro( RecursiveGaussianImageFilter, RecursiveSeparableImageFilter );
00064 
00067   itkGetMacro( Sigma, RealType );
00068   itkSetMacro( Sigma, RealType );
00069 
00073   typedef  enum { ZeroOrder, FirstOrder, SecondOrder } OrderEnumType;
00074  
00076   typedef TOutputImage      OutputImageType;
00077 
00078 
00094   itkSetMacro( NormalizeAcrossScale, bool );
00095   itkGetMacro( NormalizeAcrossScale, bool );
00096 
00103   itkSetMacro( Order, OrderEnumType );
00104   itkGetMacro( Order, OrderEnumType );
00105 
00107   void SetZeroOrder();
00108 
00110   void SetFirstOrder();
00111 
00113   void SetSecondOrder();
00114   
00115    
00116 protected:
00117   RecursiveGaussianImageFilter();
00118   virtual ~RecursiveGaussianImageFilter() {};
00119   void PrintSelf(std::ostream& os, Indent indent) const;
00120 
00124   virtual void SetUp(void);
00125 
00131   void ComputeFilterCoefficients(bool symmetric);
00132 
00133 private:  
00134   RecursiveGaussianImageFilter(const Self&); //purposely not implemented
00135   void operator=(const Self&); //purposely not implemented
00136 
00138   RealType m_Sigma;
00139 
00141   bool m_NormalizeAcrossScale; 
00142 
00143   OrderEnumType   m_Order;
00144 
00145 };
00146 
00147 } // end namespace itk
00148 
00149 #ifndef ITK_MANUAL_INSTANTIATION
00150 #include "itkRecursiveGaussianImageFilter.txx"
00151 #endif
00152 
00153 #endif
00154 

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