itkExponentialLimiterFunction.h

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/*=========================================================================
 *
 *  Copyright UMC Utrecht and contributors
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/
 
#ifndef __itkExponentialLimiterFunction_h
#define __itkExponentialLimiterFunction_h
 
#include "itkLimiterFunctionBase.h"
 
namespace itk
{
 
template< class TInput, unsigned int NDimension >
class ExponentialLimiterFunction :
  public LimiterFunctionBase< TInput, NDimension >
{
public:
 
  typedef ExponentialLimiterFunction                Self;
  typedef LimiterFunctionBase< TInput, NDimension > Superclass;
  typedef SmartPointer< Self >                      Pointer;
  typedef SmartPointer< const Self >                ConstPointer;
 
  itkTypeMacro( ExponentialLimiterFunction, LimiterFunctionBase );
 
  itkNewMacro( Self );
 
  itkStaticConstMacro( Dimension, unsigned int, Superclass::Dimension );
 
  typedef typename Superclass::InputType           InputType;
  typedef typename Superclass::OutputType          OutputType;
  typedef typename Superclass::DerivativeValueType DerivativeValueType;
  typedef typename Superclass::DerivativeType      DerivativeType;
 
  OutputType Evaluate( const InputType & input ) const override;
 
  OutputType Evaluate( const InputType & input, DerivativeType & derivative ) const override;
 
  void Initialize( void ) override;
 
protected:
 
  ExponentialLimiterFunction();
  ~ExponentialLimiterFunction() override{}
 
  virtual void ComputeLimiterSettings( void );
 
  double m_UTminUB;
  double m_UTminUBinv;
  double m_LTminLB;
  double m_LTminLBinv;
 
private:
 
  ExponentialLimiterFunction( const Self & ); // purposely not implemented
  void operator=( const Self & );             // purposely not implemented
 
};
 
} // end namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkExponentialLimiterFunction.hxx"
#endif
 
#endif