lib/fpa/Image/Functors/RegionGrowThresholdFunction.h

   1 #ifndef __FPA__IMAGE__FUNCTORS__REGIONGROWTHRESHOLDFUNCTION__H__
   2 #define __FPA__IMAGE__FUNCTORS__REGIONGROWTHRESHOLDFUNCTION__H__
   3
   4 #include <itkNumericTraits.h>
   5 #include <fpa/Image/Functors/RegionGrowAllBelongsFunction.h>
   6
   7 namespace fpa
   8 {
   9   namespace Image
  10   {
  11     namespace Functors
  12     {
  13       /**
  14        */
  15       template< class I >
  16       class RegionGrowThresholdFunction
  17         : public RegionGrowAllBelongsFunction< I >
  18       {
  19       public:
  20         /// Type-related and pointers
  21         typedef RegionGrowThresholdFunction       Self;
  22         typedef RegionGrowAllBelongsFunction< I > Superclass;
  23         typedef itk::SmartPointer< Self >         Pointer;
  24         typedef itk::SmartPointer< const Self >   ConstPointer;
  25
  26         // Superclass' types
  27         typedef I                     TInputImage;
  28         typedef typename I::IndexType TIndex;
  29         typedef typename I::PixelType TPixel;
  30
  31       public:
  32         itkNewMacro( Self );
  33         itkTypeMacro(
  34           RegionGrowThresholdFunction,
  35           RegionGrowAllBelongsFunction
  36           );
  37
  38         itkGetConstMacro( LowerThreshold, TPixel );
  39         itkGetConstMacro( UpperThreshold, TPixel );
  40
  41         itkSetMacro( LowerThreshold, TPixel );
  42         itkSetMacro( UpperThreshold, TPixel );
  43
  44       public:
  45         virtual bool Evaluate( const TIndex& idx ) const
  46           {
  47             const I* img = this->GetSpace( );
  48             if( img != NULL )
  49             {
  50               TPixel v = img->GetPixel( idx );
  51               return(
  52                 !( v < this->m_LowerThreshold || this->m_UpperThreshold < v )
  53                 );
  54
  55             } // fi
  56             return( false );
  57           }
  58
  59       protected:
  60         RegionGrowThresholdFunction( )
  61           : Superclass( )
  62           {
  63             itk::NumericTraits< TPixel >::min( this->m_LowerThreshold );
  64             itk::NumericTraits< TPixel >::max( this->m_UpperThreshold );
  65           }
  66         virtual ~RegionGrowThresholdFunction( )
  67           { }
  68
  69       private:
  70         // Purposely not implemented
  71         RegionGrowThresholdFunction( const Self& );
  72         void operator=( const Self& );
  73
  74       protected:
  75         TPixel m_LowerThreshold;
  76         TPixel m_UpperThreshold;
  77       };
  78
  79     } // ecapseman
  80
  81   } // ecapseman
  82
  83 } // ecapseman
  84
  85 #endif // __FPA__IMAGE__FUNCTORS__REGIONGROWTHRESHOLDFUNCTION__H__
  86
  87 // eof - $RCSfile$