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itkBinaryThresholdImageFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkBinaryThresholdImageFilter.h,v $
00005   Language:  C++
00006   Date:      $Date: 2003/09/10 14:28:44 $
00007   Version:   $Revision: 1.3 $
00008 
00009   Copyright (c) Insight Software Consortium. All rights reserved.
00010   See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
00011 
00012      This software is distributed WITHOUT ANY WARRANTY; without even 
00013      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00014      PURPOSE.  See the above copyright notices for more information.
00015 
00016 =========================================================================*/
00017 #ifndef __itkBinaryThresholdImageFilter_h
00018 #define __itkBinaryThresholdImageFilter_h
00019 
00020 #include "itkUnaryFunctorImageFilter.h"
00021 #include "itkConceptChecking.h"
00022 
00023 namespace itk
00024 {
00025   
00043 namespace Functor {  
00044   
00045 template< class TInput, class TOutput>
00046 class BinaryThreshold
00047 {
00048 public:
00049   BinaryThreshold() {};
00050   ~BinaryThreshold() {};
00051 
00052   void SetLowerThreshold( const TInput & thresh )
00053   { m_LowerThreshold = thresh; }
00054   void SetUpperThreshold( const TInput & thresh )
00055   { m_UpperThreshold = thresh; }
00056   void SetInsideValue( const TOutput & value )
00057   { m_InsideValue = value; }
00058   void SetOutsideValue( const TOutput & value )
00059   { m_OutsideValue = value; }
00060 
00061   inline TOutput operator()( const TInput & A )
00062   {
00063     if ( m_LowerThreshold <= A && A <= m_UpperThreshold )
00064       {
00065       return m_InsideValue;
00066       }
00067     return m_OutsideValue;
00068   }
00069 
00070 private:
00071   TInput      m_LowerThreshold;
00072   TInput      m_UpperThreshold;
00073   TOutput     m_InsideValue;
00074   TOutput     m_OutsideValue;
00075 
00076 };
00077 }
00078 
00079 template <class TInputImage, class TOutputImage>
00080 class ITK_EXPORT BinaryThresholdImageFilter :
00081     public
00082 UnaryFunctorImageFilter<TInputImage,TOutputImage, 
00083                         Functor::BinaryThreshold< 
00084   typename TInputImage::PixelType, 
00085   typename TOutputImage::PixelType> >
00086 {
00087 public:
00089   typedef BinaryThresholdImageFilter  Self;
00090   typedef UnaryFunctorImageFilter<TInputImage,TOutputImage, 
00091                                   Functor::BinaryThreshold< 
00092     typename TInputImage::PixelType, 
00093     typename TOutputImage::PixelType>   
00094   >  Superclass;
00095   typedef SmartPointer<Self>   Pointer;
00096   typedef SmartPointer<const Self>  ConstPointer;
00097 
00099   itkNewMacro(Self);
00100 
00102   itkTypeMacro(BinaryThresholdImageFilter, UnaryFunctorImageFilter);
00103 
00105   typedef typename TInputImage::PixelType  InputPixelType;
00106   typedef typename TOutputImage::PixelType OutputPixelType;
00107 
00109   itkConceptMacro(PixelTypeComparable, (Concept::Comparable<InputPixelType>));
00110 
00113   itkSetMacro(OutsideValue,OutputPixelType);
00114   
00116   itkGetMacro(OutsideValue,OutputPixelType);
00117 
00120   itkSetMacro(InsideValue,OutputPixelType);
00121   
00123   itkGetMacro(InsideValue,OutputPixelType);
00124 
00129   itkSetMacro( UpperThreshold, InputPixelType );
00130   itkSetMacro( LowerThreshold, InputPixelType );
00131                  
00133   itkGetMacro( UpperThreshold, InputPixelType );
00134   itkGetMacro( LowerThreshold, InputPixelType );
00135 
00136   
00137 protected:
00138   BinaryThresholdImageFilter();
00139   virtual ~BinaryThresholdImageFilter() {}
00140   void PrintSelf(std::ostream& os, Indent indent) const;
00141 
00144   virtual void BeforeThreadedGenerateData();
00145 
00146 private:
00147   BinaryThresholdImageFilter(const Self&); //purposely not implemented
00148   void operator=(const Self&); //purposely not implemented
00149 
00150   InputPixelType      m_LowerThreshold;
00151   InputPixelType      m_UpperThreshold;
00152   OutputPixelType     m_InsideValue;
00153   OutputPixelType     m_OutsideValue;
00154 
00155 };
00156 
00157 } // end namespace itk
00158 
00159 #ifndef ITK_MANUAL_INSTANTIATION
00160 #include "itkBinaryThresholdImageFilter.txx"
00161 #endif
00162 
00163 #endif

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