lib/fpa/Base/Functors/InvertCostFunction.h

   1 #ifndef __FPA__BASE__FUNCTORS__INVERTCOSTFUNCTION__H__
   2 #define __FPA__BASE__FUNCTORS__INVERTCOSTFUNCTION__H__
   3
   4 #include <itkFunctionBase.h>
   5
   6 namespace fpa
   7 {
   8   namespace Base
   9   {
  10     namespace Functors
  11     {
  12       /**
  13        */
  14       template< class C >
  15       class InvertCostFunction
  16         : public itk::FunctionBase< C, C >
  17       {
  18       public:
  19         /// Type-related and pointers
  20         typedef InvertCostFunction              Self;
  21         typedef itk::FunctionBase< C, C >       Superclass;
  22         typedef itk::SmartPointer< Self >       Pointer;
  23         typedef itk::SmartPointer< const Self > ConstPointer;
  24
  25       public:
  26         itkNewMacro( Self );
  27         itkTypeMacro( InvertCostFunction, itkFunctionBase );
  28
  29       public:
  30         virtual C Evaluate( const C& input ) const
  31           {
  32             if( input < C( 0 ) )
  33               return( C( -1 ) / ( C( 1 ) + C( input ) ) );
  34             else
  35               return( C( 1 ) / ( C( 1 ) + C( input ) ) );
  36           }
  37
  38       protected:
  39         InvertCostFunction( )
  40           : Superclass( )
  41           { }
  42         virtual ~InvertCostFunction( )
  43           { }
  44
  45       private:
  46         // Purposely not implemented
  47         InvertCostFunction( const Self& );
  48         void operator=( const Self& );
  49       };
  50
  51     } // ecapseman
  52
  53   } // ecapseman
  54
  55 } // ecapseman
  56
  57 #endif // __FPA__BASE__FUNCTORS__INVERTCOSTFUNCTION__H__
  58
  59 // eof - $RCSfile$