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itkLogSigmoidTransferFunction.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkLogSigmoidTransferFunction.h,v $
00005   Language:  C++
00006   Date:      $Date: 2005/08/02 19:17:37 $
00007   Version:   $Revision: 1.1 $
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 
00018 #ifndef __itkLogSigmoidTransferFunction_h
00019 #define __itkLogSigmoidTransferFunction_h
00020 
00021 #include "itkTransferFunctionBase.h"
00022 
00023 namespace itk
00024 {
00025 namespace Statistics
00026 {
00027 
00028 template<class ScalarType>
00029 class LogSigmoidTransferFunction : public TransferFunctionBase<ScalarType>
00030 {
00031 public:
00032 
00034   typedef LogSigmoidTransferFunction Self;
00035   typedef TransferFunctionBase<ScalarType> Superclass;
00036   typedef SmartPointer<Self> Pointer;
00037   typedef SmartPointer<const Self> ConstPointer;
00038 
00040   itkTypeMacro(LogSigmoidTransferFunction, TransferFunctionBase);
00041 
00043   itkNewMacro(Self) ;
00044 
00046   ScalarType Evaluate(const ScalarType& input) const;
00047 
00049   ScalarType EvaluateDerivative(const ScalarType& input) const;
00050 
00051 protected:
00052 
00053   LogSigmoidTransferFunction();
00054   ~LogSigmoidTransferFunction();
00055 
00057   virtual void PrintSelf( std::ostream& os, Indent indent ) const;
00058 };
00059 
00060 } // end namespace Statistics
00061 } // end namespace itk
00062 
00063 #ifndef ITK_MANUAL_INSTANTIATION
00064 #include "itkLogSigmoidTransferFunction.txx"
00065 #endif
00066 
00067 
00068 #endif

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