itkOptimizerParameterScalesEstimator.h

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/*=========================================================================
 *
 *  Copyright Insight Software Consortium
 *
 *  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.
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 *=========================================================================*/
#ifndef __itkOptimizerParameterScalesEstimator_h
#define __itkOptimizerParameterScalesEstimator_h

#include "itkObject.h"
#include "itkObjectFactory.h"
#include "itkObjectToObjectOptimizerBase.h"
#include "itkSingleValuedCostFunctionv4.h"

namespace itk
{

class ITK_EXPORT OptimizerParameterScalesEstimator : public Object
{
public:
  typedef OptimizerParameterScalesEstimator     Self;
  typedef Object                                Superclass;
  typedef SmartPointer<Self>                    Pointer;
  typedef SmartPointer<const Self>              ConstPointer;

  itkTypeMacro( OptimizerParameterScalesEstimator, Object );

  typedef ObjectToObjectOptimizerBase::ScalesType        ScalesType;

  typedef ObjectToObjectOptimizerBase::ParametersType    ParametersType;

  typedef double                                         FloatType;

  virtual void EstimateScales(ScalesType &scales) = 0;

  virtual FloatType EstimateStepScale(const ParametersType &step) = 0;

  virtual void EstimateLocalStepScales(const ParametersType &step,
    ScalesType &localStepScales) = 0;

  virtual FloatType EstimateMaximumStepSize() = 0;

protected:
  OptimizerParameterScalesEstimator(){};
  ~OptimizerParameterScalesEstimator(){};

  void PrintSelf(std::ostream &os, Indent indent) const
    {
    Superclass::PrintSelf(os,indent);
    }

private:
  OptimizerParameterScalesEstimator(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented

}; //class OptimizerParameterScalesEstimator

}  // namespace itk

#endif /* __itkOptimizerParameterScalesEstimator_h */