lib/cpPlugins/Extensions/Algorithms/MultiScaleGaussianImageFilter.h

   1 // -------------------------------------------------------------------------
   2 // @author Leonardo Florez-Valencia (florez-l@javeriana.edu.co)
   3 // -------------------------------------------------------------------------
   4
   5 #ifndef __CPPLUGINS__EXTENSIONS__ALGORITHMS__MULTISCALEGAUSSIANIMAGEFILTER__H__
   6 #define __CPPLUGINS__EXTENSIONS__ALGORITHMS__MULTISCALEGAUSSIANIMAGEFILTER__H__
   7
   8 #include <set>
   9 #include <itkImageToImageFilter.h>
  10
  11 namespace cpPlugins
  12 {
  13   namespace Extensions
  14   {
  15     namespace Algorithms
  16     {
  17       /**
  18        */
  19       template< class I, class O >
  20       class MultiScaleGaussianImageFilter
  21         : public itk::ImageToImageFilter< I, O >
  22       {
  23       public:
  24         typedef MultiScaleGaussianImageFilter   Self;
  25         typedef itk::ImageToImageFilter< I, O > Superclass;
  26         typedef itk::SmartPointer< Self >       Pointer;
  27         typedef itk::SmartPointer< const Self > ConstPointer;
  28
  29         typedef I TInputImage;
  30         typedef O TOutputImage;
  31
  32         typedef std::set< double > TScalesContainer;
  33
  34         enum FilterId
  35         {
  36           Gradient = 0,
  37           GradientMagnitude,
  38           Hessian,
  39           None
  40         };
  41
  42       protected:
  43         /**
  44          */
  45         class _Greater
  46         {
  47         public:
  48           typedef typename O::PixelType _T;
  49
  50         public:
  51           _Greater( );
  52           virtual ~_Greater( );
  53           bool operator!=( const _Greater& b ) const;
  54           bool operator==( const _Greater& b ) const;
  55           inline _T operator()( const _T& a ) const;
  56           inline _T operator()( const _T& a, const _T& b ) const;
  57         };
  58
  59       public:
  60         itkNewMacro( Self );
  61         itkTypeMacro( MultiScaleGaussianImageFilter, itkImageToImageFilter );
  62
  63       public:
  64         void SetFilterToGradient( );
  65         void SetFilterToGradientMagnitude( );
  66         void SetFilterToHessian( );
  67
  68         bool IsGradientFilter( ) const;
  69         bool IsGradientMagnitudeFilter( ) const;
  70         bool IsHessianFilter( ) const;
  71
  72         void AddScale( const double& s );
  73         unsigned long GetNumberOfScales( ) const;
  74
  75       protected:
  76         MultiScaleGaussianImageFilter( );
  77         virtual ~MultiScaleGaussianImageFilter( );
  78
  79         virtual void GenerateData( );
  80
  81         template< class F >
  82         void _GenerateData( );
  83
  84       private:
  85         // Purposely not implemented.
  86         MultiScaleGaussianImageFilter( const Self& );
  87         void operator=( const Self& );
  88
  89       protected:
  90         TScalesContainer m_Scales;
  91         FilterId m_FilterId;
  92       };
  93
  94     } // ecapseman
  95
  96   } // ecapseman
  97
  98 } // ecapseman
  99
 100 #include <cpPlugins/Extensions/Algorithms/MultiScaleGaussianImageFilter.hxx>
 101
 102 #endif // __CPPLUGINS__EXTENSIONS__ALGORITHMS__MULTISCALEGAUSSIANIMAGEFILTER__H__
 103
 104 // eof - $RCSfile$