otbVectorImageToAmplitudeImageFilter.h

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/*
 * Copyright (C) 2005-2022 Centre National d'Etudes Spatiales (CNES)
 *
 * This file is part of Orfeo Toolbox
 *
 *     https://www.orfeo-toolbox.org/
 *
 * 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
 *
 * 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 otbVectorImageToAmplitudeImageFilter_h
#define otbVectorImageToAmplitudeImageFilter_h
 
#include "itkUnaryFunctorImageFilter.h"
#include "otbMath.h"
#include "itkConceptChecking.h"
 
namespace otb
{
namespace Functor
{
template <class TInput, class TOutput>
class VectorToAmplitudeFunctor
{
public:
  VectorToAmplitudeFunctor()
  {
  }
  virtual ~VectorToAmplitudeFunctor()
  {
  }
 
  inline TOutput operator()(const TInput& A)
  {
    return static_cast<TOutput>(A.GetNorm());
  }
 
  itkConceptMacro(OutputShouldNotBeVectorImageCheck, (itk::Concept::Convertible<TOutput, double>));
 
}; // end namespace Functor
}
 
template <class TInputImage, class TOutputImage>
class ITK_EXPORT VectorImageToAmplitudeImageFilter
    : public itk::UnaryFunctorImageFilter<TInputImage, TOutputImage,
                                          Functor::VectorToAmplitudeFunctor<typename TInputImage::PixelType, typename TOutputImage::PixelType>>
{
public:
  typedef VectorImageToAmplitudeImageFilter Self;
  typedef itk::UnaryFunctorImageFilter<TInputImage, TOutputImage,
                                       Functor::VectorToAmplitudeFunctor<typename TInputImage::PixelType, typename TOutputImage::PixelType>>
                                        Superclass;
  typedef itk::SmartPointer<Self>       Pointer;
  typedef itk::SmartPointer<const Self> ConstPointer;
 
  itkNewMacro(Self);
 
  itkTypeMacro(VectorImageToAmplitudeImageFilter, UnaryFunctorImageFilter);
 
protected:
  VectorImageToAmplitudeImageFilter(){};
 
  ~VectorImageToAmplitudeImageFilter() override
  {
  }
 
  void PrintSelf(std::ostream& os, itk::Indent indent) const override
  {
    Superclass::PrintSelf(os, indent);
  }
 
private:
  VectorImageToAmplitudeImageFilter(const Self&) = delete;
  void operator=(const Self&) = delete;
};
 
} // End namespace otb
#endif