itkNotImageFilter.h

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/*=========================================================================
 *
 *  Copyright NumFOCUS
 *
 *  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
 *
 *         https://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 itkNotImageFilter_h
#define itkNotImageFilter_h
 
#include "itkUnaryFunctorImageFilter.h"
#include "itkLogicOpsFunctors.h"
#include "itkNumericTraits.h"
 
namespace itk
{
template <typename TInputImage, typename TOutputImage>
class NotImageFilter
  : public UnaryFunctorImageFilter<TInputImage,
                                   TOutputImage,
                                   Functor::NOT<typename TInputImage::PixelType, typename TOutputImage::PixelType>>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(NotImageFilter);

  using Self = NotImageFilter;
  using Superclass =
    UnaryFunctorImageFilter<TInputImage,
                            TOutputImage,
                            Functor::NOT<typename TInputImage::PixelType, typename TOutputImage::PixelType>>;
 
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;

  itkNewMacro(Self);

  itkOverrideGetNameOfClassMacro(NotImageFilter);

  void
  SetBackgroundValue(const typename TOutputImage::PixelType & backgroundValue)
  {
    if (Math::NotExactlyEquals(this->GetBackgroundValue(), backgroundValue))
    {
      this->Modified();
      this->GetFunctor().SetBackgroundValue(backgroundValue);
    }
  }
  typename TOutputImage::PixelType
  GetBackgroundValue() const
  {
    return this->GetFunctor().GetBackgroundValue();
  }


  void
  SetForegroundValue(const typename TOutputImage::PixelType & foregroundValue)
  {
    std::cout << "this->GetForegroundValue(): " << this->GetForegroundValue()
              << "  foregroundValue: " << foregroundValue << std::endl;
    if (Math::NotExactlyEquals(this->GetForegroundValue(), foregroundValue))
    {
      this->Modified();
      this->GetFunctor().SetForegroundValue(foregroundValue);
    }
  }
  typename TOutputImage::PixelType
  GetForegroundValue() const
  {
    return this->GetFunctor().GetForegroundValue();
  }

 
  itkConceptMacro(InputConvertibleToOutputCheck, (Concept::Convertible<typename TInputImage::PixelType, bool>));
  itkConceptMacro(OutputConvertibleToOutputCheck, (Concept::Convertible<bool, typename TOutputImage::PixelType>));
  itkConceptMacro(InputNotOperatorCheck, (Concept::NotOperator<typename TInputImage::PixelType>));
 
protected:
  NotImageFilter()
  {
    this->GetFunctor().SetForegroundValue(true);
    this->GetFunctor().SetBackgroundValue(false);
  }
  ~NotImageFilter() override = default;
};
} // end namespace itk
 
#endif