itkMinimumMaximumImageCalculator.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 itkMinimumMaximumImageCalculator_h
#define itkMinimumMaximumImageCalculator_h
 
#include "itkNumericTraits.h"
#include "itkObject.h"
#include "itkObjectFactory.h"
 
namespace itk
{
template <typename TInputImage>
class ITK_TEMPLATE_EXPORT MinimumMaximumImageCalculator : public Object
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(MinimumMaximumImageCalculator);
 
  using Self = MinimumMaximumImageCalculator;
  using Superclass = Object;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;
 
  itkNewMacro(Self);
 
  itkOverrideGetNameOfClassMacro(MinimumMaximumImageCalculator);
 
  using ImageType = TInputImage;
 
  using ImagePointer = typename TInputImage::Pointer;
 
  using ImageConstPointer = typename TInputImage::ConstPointer;
 
  using PixelType = typename TInputImage::PixelType;
 
  using IndexType = typename TInputImage::IndexType;
 
  using RegionType = typename TInputImage::RegionType;
 
  itkSetConstObjectMacro(Image, ImageType);
 
  void
  ComputeMinimum();
 
  void
  ComputeMaximum();
 
  void
  Compute();
 
  itkGetConstMacro(Minimum, PixelType);
 
  itkGetConstMacro(Maximum, PixelType);
 
  itkGetConstReferenceMacro(IndexOfMinimum, IndexType);
 
  itkGetConstReferenceMacro(IndexOfMaximum, IndexType);
 
  void
  SetRegion(const RegionType & region);
 
protected:
  MinimumMaximumImageCalculator() = default;
  ~MinimumMaximumImageCalculator() override = default;
  void
  PrintSelf(std::ostream & os, Indent indent) const override;
 
private:
  PixelType         m_Minimum{ NumericTraits<PixelType>::max() };
  PixelType         m_Maximum{ NumericTraits<PixelType>::NonpositiveMin() };
  ImageConstPointer m_Image{ TInputImage::New() };
 
  IndexType m_IndexOfMinimum{};
  IndexType m_IndexOfMaximum{};
 
  RegionType m_Region{};
  bool       m_RegionSetByUser{};
};
} // end namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkMinimumMaximumImageCalculator.hxx"
#endif
 
#endif /* itkMinimumMaximumImageCalculator_h */