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00017 #ifndef __itkGradientImageFilter_h
00018 #define __itkGradientImageFilter_h
00019
00020 #include "itkImageToImageFilter.h"
00021 #include "itkImage.h"
00022 #include "itkCovariantVector.h"
00023
00024 namespace itk
00025 {
00047 template <class TInputImage, class TOperatorValueType=float, class TOutputValueType=float>
00048 class ITK_EXPORT GradientImageFilter :
00049 public ImageToImageFilter< TInputImage,
00050 Image<CovariantVector<TOutputValueType, ::itk::GetImageDimension<TInputImage>::ImageDimension>, ::itk::GetImageDimension<TInputImage>::ImageDimension> >
00051 {
00052 public:
00054 itkStaticConstMacro(InputImageDimension, unsigned int,
00055 TInputImage::ImageDimension);
00056 itkStaticConstMacro(OutputImageDimension, unsigned int,
00057 TInputImage::ImageDimension);
00059
00061 typedef GradientImageFilter Self;
00062
00064 typedef TInputImage InputImageType;
00065 typedef typename InputImageType::Pointer InputImagePointer;
00066 typedef Image<CovariantVector<TOutputValueType, itkGetStaticConstMacro(OutputImageDimension)>, itkGetStaticConstMacro(OutputImageDimension)> OutputImageType;
00067 typedef typename OutputImageType::Pointer OutputImagePointer;
00068
00070 typedef ImageToImageFilter< InputImageType, OutputImageType> Superclass;
00071 typedef SmartPointer<Self> Pointer;
00072 typedef SmartPointer<const Self> ConstPointer;
00073
00075 itkNewMacro(Self);
00076
00078 itkTypeMacro(GradientImageFilter, ImageToImageFilter);
00079
00081 typedef typename InputImageType::PixelType InputPixelType;
00082 typedef TOperatorValueType OperatorValueType;
00083 typedef TOutputValueType OutputValueType;
00084 typedef CovariantVector<OutputValueType, itkGetStaticConstMacro(OutputImageDimension)> OutputPixelType;
00085 typedef typename OutputImageType::RegionType OutputImageRegionType;
00086
00093 virtual void GenerateInputRequestedRegion() throw(InvalidRequestedRegionError);
00094
00097 void SetUseImageSpacingOn()
00098 { this->SetUseImageSpacing(true); }
00099
00102 void SetUseImageSpacingOff()
00103 { this->SetUseImageSpacing(false); }
00104
00107 itkSetMacro(UseImageSpacing, bool);
00108 itkGetMacro(UseImageSpacing, bool);
00110
00111 #ifdef ITK_USE_CONCEPT_CHECKING
00112
00113 itkConceptMacro(InputConvertibleToOutputCheck,
00114 (Concept::Convertible<InputPixelType, OutputValueType>));
00115 itkConceptMacro(OutputHasNumericTraitsCheck,
00116 (Concept::HasNumericTraits<OutputValueType>));
00117
00119 #endif
00120
00121 protected:
00122 GradientImageFilter()
00123 {
00124 m_UseImageSpacing = true;
00125 }
00126 virtual ~GradientImageFilter() {}
00127 void PrintSelf(std::ostream& os, Indent indent) const;
00128
00139 void ThreadedGenerateData(const OutputImageRegionType& outputRegionForThread,
00140 int threadId );
00141
00142 private:
00143 GradientImageFilter(const Self&);
00144 void operator=(const Self&);
00145
00146 bool m_UseImageSpacing;
00147 };
00148
00149 }
00150
00151 #ifndef ITK_MANUAL_INSTANTIATION
00152 #include "itkGradientImageFilter.txx"
00153 #endif
00154
00155 #endif
00156