lib/cpExtensions/Algorithms/GradientImageFunctionBase.h

   1 #ifndef __CPEXTENSIONS__ALGORITHMS__GRADIENTIMAGEFUNCTIONBASE__H__
   2 #define __CPEXTENSIONS__ALGORITHMS__GRADIENTIMAGEFUNCTIONBASE__H__
   3
   4 #include <itkImageFunction.h>
   5
   6 namespace cpExtensions
   7 {
   8   namespace Algorithms
   9   {
  10     /**
  11      * Base class to compute values based on image gradients (vector).
  12      */
  13     template< class _TGradient >
  14     class GradientImageFunctionBase
  15       : public itk::ImageFunction< _TGradient, typename _TGradient::PixelType::ValueType, typename _TGradient::PixelType::ValueType >
  16     {
  17     public:
  18       // Types from input arguments
  19       typedef _TGradient                     TGradient;
  20       typedef typename _TGradient::PixelType TVector;
  21       typedef typename TVector::ValueType    TScalar;
  22       itkStaticConstMacro( Dimension, unsigned int, _TGradient::ImageDimension );
  23
  24       // Standard itk types
  25       typedef GradientImageFunctionBase                          Self;
  26       typedef itk::ImageFunction< _TGradient, TScalar, TScalar > Superclass;
  27       typedef itk::SmartPointer< Self >                          Pointer;
  28       typedef itk::SmartPointer< const Self >                    ConstPointer;
  29
  30       // Types from base itk::ImageFunction
  31       typedef typename Superclass::InputType           TInput;
  32       typedef typename Superclass::OutputType          TOutput;
  33       typedef typename Superclass::PointType           TPoint;
  34       typedef typename Superclass::ContinuousIndexType TContIndex;
  35       typedef typename Superclass::IndexType           TIndex;
  36
  37     public:
  38       itkTypeMacro( GradientImageFunctionBase, itkImageFunction );
  39
  40     public:
  41       virtual void Prepare( ) const;
  42       virtual TOutput Evaluate( const TPoint& p ) const cpExtensions_OVERRIDE;
  43       virtual TOutput EvaluateAtIndex( const TIndex& i ) const cpExtensions_OVERRIDE;
  44       virtual TOutput EvaluateAtContinuousIndex( const TContIndex& i ) const cpExtensions_OVERRIDE;
  45
  46     protected:
  47       GradientImageFunctionBase( );
  48       virtual ~GradientImageFunctionBase( );
  49
  50       virtual TOutput _Evaluate( const TIndex& i ) const = 0;
  51
  52     private:
  53       // Purposely not implemented.
  54       GradientImageFunctionBase( const Self& );
  55       void operator=( const Self& );
  56     };
  57
  58   } // ecapseman
  59
  60 } // ecapseman
  61
  62 #ifndef ITK_MANUAL_INSTANTIATION
  63 #  include <cpExtensions/Algorithms/GradientImageFunctionBase.hxx>
  64 #endif // ITK_MANUAL_INSTANTIATION
  65
  66 #endif // __CPEXTENSIONS__ALGORITHMS__GRADIENTIMAGEFUNCTIONBASE__H__
  67
  68 // eof - $RCSfile$