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itkDiscreteGaussianImageFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkDiscreteGaussianImageFilter.h,v $
00005   Language:  C++
00006   Date:      $Date: 2006/03/27 17:01:06 $
00007   Version:   $Revision: 1.39 $
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 __itkDiscreteGaussianImageFilter_h
00018 #define __itkDiscreteGaussianImageFilter_h
00019 
00020 #include "itkImageToImageFilter.h"
00021 #include "itkFixedArray.h"
00022 #include "itkImage.h"
00023 
00024 namespace itk
00025 {
00055 template <class TInputImage, class TOutputImage >
00056 class ITK_EXPORT DiscreteGaussianImageFilter :
00057     public ImageToImageFilter< TInputImage, TOutputImage > 
00058 {
00059 public:
00061   typedef DiscreteGaussianImageFilter Self;
00062   typedef ImageToImageFilter< TInputImage, TOutputImage > Superclass;
00063   typedef SmartPointer<Self> Pointer;
00064   typedef SmartPointer<const Self>  ConstPointer;
00065 
00067   itkNewMacro(Self);
00068 
00070   itkTypeMacro(DiscreteGaussianImageFilter, ImageToImageFilter);
00071 
00073   typedef TInputImage  InputImageType;
00074   typedef TOutputImage OutputImageType;
00075 
00078   typedef typename TOutputImage::PixelType OutputPixelType;
00079   typedef typename TOutputImage::InternalPixelType OutputInternalPixelType;
00080   typedef typename TInputImage::PixelType InputPixelType;
00081   typedef typename TInputImage::InternalPixelType InputInternalPixelType;
00082 
00085   itkStaticConstMacro(ImageDimension, unsigned int,
00086                       TOutputImage::ImageDimension);
00087 
00089   typedef FixedArray<double, itkGetStaticConstMacro(ImageDimension)> ArrayType;
00090 
00096   itkSetMacro(Variance, ArrayType);
00097   itkGetMacro(Variance, const ArrayType);
00099 
00103   itkSetMacro(MaximumError, ArrayType);
00104   itkGetMacro(MaximumError, const ArrayType);
00106 
00109   itkGetMacro(MaximumKernelWidth, int);
00110   itkSetMacro(MaximumKernelWidth, int);
00112 
00118   itkGetMacro(FilterDimensionality, unsigned int);
00119   itkSetMacro(FilterDimensionality, unsigned int);
00121 
00124   void SetVariance (const typename ArrayType::ValueType v)
00125     {
00126       m_Variance.Fill(v);
00127     }
00128 
00129   void SetMaximumError (const typename ArrayType::ValueType v)
00130     {
00131       m_MaximumError.Fill(v);
00132     }
00133 
00134   void SetVariance (const double *v)
00135     {
00136       ArrayType dv;
00137       for (unsigned int i = 0; i < ImageDimension; i++)
00138         {
00139         dv[i] = v[i];
00140         }
00141       this->SetVariance(dv);
00142     }
00143 
00144   void SetVariance (const float *v)
00145     {
00146       ArrayType dv;
00147       for (unsigned int i = 0; i < ImageDimension; i++)
00148         {
00149         dv[i] = v[i];
00150         }
00151       this->SetVariance(dv);
00152     }
00153 
00154   void SetMaximumError (const double *v)
00155     {
00156       ArrayType dv;
00157       for (unsigned int i = 0; i < ImageDimension; i++)
00158         {
00159         dv[i] = v[i];
00160         }
00161       this->SetMaximumError(dv);
00162     }
00163 
00164   void SetMaximumError (const float *v)
00165     {
00166       ArrayType dv;
00167       for (unsigned int i = 0; i < ImageDimension; i++)
00168         {
00169         dv[i] = v[i];
00170         }
00171       this->SetMaximumError(dv);
00172     }
00173 
00177   void SetUseImageSpacingOn()
00178   { this->SetUseImageSpacing(true); }
00179 
00182   void SetUseImageSpacingOff()
00183   { this->SetUseImageSpacing(false); }
00184 
00187   itkSetMacro(UseImageSpacing, bool);
00188   itkGetMacro(UseImageSpacing, bool);
00190 
00197   virtual void GenerateInputRequestedRegion() throw(InvalidRequestedRegionError);
00198 
00199 #ifdef ITK_USE_CONCEPT_CHECKING
00200 
00201   itkConceptMacro(OutputHasNumericTraitsCheck,
00202     (Concept::HasNumericTraits<OutputPixelType>));
00203 
00205 #endif
00206 
00207 protected:
00208   DiscreteGaussianImageFilter()
00209   {
00210     m_Variance.Fill(0.0);
00211     m_MaximumError.Fill(0.01);
00212     m_MaximumKernelWidth = 32;
00213     m_UseImageSpacing = true;
00214     m_FilterDimensionality = ImageDimension;
00215   }
00216   virtual ~DiscreteGaussianImageFilter() {}
00217   void PrintSelf(std::ostream& os, Indent indent) const;
00218 
00224   void GenerateData();
00225 
00226   
00227 private:
00228   DiscreteGaussianImageFilter(const Self&); //purposely not implemented
00229   void operator=(const Self&); //purposely not implemented
00230 
00232   ArrayType m_Variance;
00233 
00237   ArrayType m_MaximumError;
00238 
00241   int m_MaximumKernelWidth;
00242 
00244   unsigned int m_FilterDimensionality;
00245 
00247   bool m_UseImageSpacing;
00248 };
00249 
00250 } // end namespace itk
00251 
00252 #ifndef ITK_MANUAL_INSTANTIATION
00253 #include "itkDiscreteGaussianImageFilter.txx"
00254 #endif
00255 
00256 #endif
00257 

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