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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 itkAttributeRelabelLabelMapFilter_h
#define itkAttributeRelabelLabelMapFilter_h
#include "itkInPlaceLabelMapFilter.h"
#include "itkAttributeLabelObject.h"
namespace itk
{
/**
* \class AttributeRelabelLabelMapFilter
* \brief relabel objects according to their shape attributes
*
* AttributeRelabelLabelMapFilter relabel a label map according to the
* attribute values of the objects.
* The attribute is provide by an attribute accessor given in template parameter.
*
* This implementation was taken from the Insight Journal paper:
* https://www.insight-journal.org/browse/publication/176
*
* \author Gaetan Lehmann. Biologie du Developpement et de la Reproduction, INRA de Jouy-en-Josas, France.
*
* \sa AttributeLabelObject, RelabelComponentImageFilter
* \ingroup ImageEnhancement MathematicalMorphologyImageFilters
* \ingroup ITKLabelMap
*/
template <typename TImage,
typename TAttributeAccessor =
typename Functor::AttributeLabelObjectAccessor<typename TImage::LabelObjectType>>
class ITK_TEMPLATE_EXPORT AttributeRelabelLabelMapFilter : public InPlaceLabelMapFilter<TImage>
{
public:
ITK_DISALLOW_COPY_AND_MOVE(AttributeRelabelLabelMapFilter);
/** Standard class type aliases. */
using Self = AttributeRelabelLabelMapFilter;
using Superclass = InPlaceLabelMapFilter<TImage>;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
/** Some convenient type alias. */
using ImageType = TImage;
using ImagePointer = typename ImageType::Pointer;
using ImageConstPointer = typename ImageType::ConstPointer;
using PixelType = typename ImageType::PixelType;
using IndexType = typename ImageType::IndexType;
using LabelObjectType = typename ImageType::LabelObjectType;
using AttributeAccessorType = TAttributeAccessor;
using AttributeValueType = typename AttributeAccessorType::AttributeValueType;
/** ImageDimension constants */
static constexpr unsigned int ImageDimension = TImage::ImageDimension;
/** Standard New method. */
itkNewMacro(Self);
/** \see LightObject::GetNameOfClass() */
itkOverrideGetNameOfClassMacro(AttributeRelabelLabelMapFilter);
#ifdef ITK_USE_CONCEPT_CHECKING
// Begin concept checking
/* itkConceptMacro(InputEqualityComparableCheck,
(Concept::EqualityComparable<InputImagePixelType>));
itkConceptMacro(IntConvertibleToInputCheck,
(Concept::Convertible<int, InputImagePixelType>));
itkConceptMacro(InputOStreamWritableCheck,
(Concept::OStreamWritable<InputImagePixelType>));*/
// End concept checking
#endif
/**
* Set/Get the order of labeling of the objects. By default, the objects with
* the highest attribute values are labeled first. Set ReverseOrdering to true
* make the one with the smallest attributes be labeled first.
*/
itkSetMacro(ReverseOrdering, bool);
itkGetConstReferenceMacro(ReverseOrdering, bool);
itkBooleanMacro(ReverseOrdering);
protected:
AttributeRelabelLabelMapFilter();
~AttributeRelabelLabelMapFilter() override = default;
void
GenerateData() override;
void
PrintSelf(std::ostream & os, Indent indent) const override;
class ReverseComparator
{
public:
bool
operator()(const typename LabelObjectType::Pointer & a, const typename LabelObjectType::Pointer & b)
{
return m_Accessor(a) < m_Accessor(b);
}
ReverseComparator()
: m_Accessor()
{}
private:
AttributeAccessorType m_Accessor;
};
class Comparator
{
public:
bool
operator()(const typename LabelObjectType::Pointer & a, const typename LabelObjectType::Pointer & b)
{
return m_Accessor(a) > m_Accessor(b);
}
Comparator()
: m_Accessor()
{}
private:
AttributeAccessorType m_Accessor;
};
private:
bool m_ReverseOrdering{};
}; // end of class
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkAttributeRelabelLabelMapFilter.hxx"
#endif
#endif
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