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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 itkRelabelLabelMapFilter_h
#define itkRelabelLabelMapFilter_h
#include "itkAttributeRelabelLabelMapFilter.h"
#include "itkLabelObjectAccessors.h"
namespace itk
{
/**
* \class RelabelLabelMapFilter
* \brief This filter relabels the LabelObjects; the new labels are arranged
* consecutively with consideration for the background value.
*
* This filter takes the LabelObjects from the input and reassigns them to the
* output by calling the PushLabelObject method, which by default, attempts to
* reorganize the labels consecutively. The user can assign an arbitrary value
* to the background; the filter will assign the labels consecutively by
* skipping the background value.
*
* 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 ShapeLabelObject, RelabelComponentImageFilter
* \ingroup ImageEnhancement MathematicalMorphologyImageFilters
* \ingroup ITKLabelMap
*/
template <typename TImage>
class RelabelLabelMapFilter
: public AttributeRelabelLabelMapFilter<TImage,
typename Functor::LabelLabelObjectAccessor<typename TImage::LabelObjectType>>
{
public:
ITK_DISALLOW_COPY_AND_MOVE(RelabelLabelMapFilter);
/** Standard class type aliases. */
using Self = RelabelLabelMapFilter;
using Superclass =
AttributeRelabelLabelMapFilter<TImage,
typename Functor::LabelLabelObjectAccessor<typename TImage::LabelObjectType>>;
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;
/** ImageDimension constants */
static constexpr unsigned int ImageDimension = TImage::ImageDimension;
/** Standard New method. */
itkNewMacro(Self);
/** \see LightObject::GetNameOfClass() */
itkOverrideGetNameOfClassMacro(RelabelLabelMapFilter);
#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
protected:
RelabelLabelMapFilter() { this->SetReverseOrdering(true); }
~RelabelLabelMapFilter() override = default;
}; // end of class
} // end namespace itk
#endif
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