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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 itkChangeLabelLabelMapFilter_h
#define itkChangeLabelLabelMapFilter_h
#include "itkInPlaceLabelMapFilter.h"
#include <map>
namespace itk
{
/**
* \class ChangeLabelLabelMapFilter
* \brief Replace the label Ids of selected LabelObjects with new label Ids.
*
* This filter takes as input a label map and a list of pairs of Label Ids, to
* produce as output a new label map where the label Ids have been replaced
* according to the pairs in the list.
*
* Labels that are relabeled to the same label Id are automatically
* merged and optimized into a single LabelObject. The background
* label can also be changed. Any object relabeled to the output
* background will automatically be removed.
*
* 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, ChangeLabelImageFilter
* \ingroup ImageEnhancement MathematicalMorphologyImageFilters
* \ingroup ITKLabelMap
*/
template <typename TImage>
class ITK_TEMPLATE_EXPORT ChangeLabelLabelMapFilter : public InPlaceLabelMapFilter<TImage>
{
public:
ITK_DISALLOW_COPY_AND_MOVE(ChangeLabelLabelMapFilter);
/** Standard class type aliases. */
using Self = ChangeLabelLabelMapFilter;
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;
/** ImageDimension constants */
static constexpr unsigned int ImageDimension = TImage::ImageDimension;
/** Standard New method. */
itkNewMacro(Self);
/** \see LightObject::GetNameOfClass() */
itkOverrideGetNameOfClassMacro(ChangeLabelLabelMapFilter);
using ChangeMapType = typename std::map<PixelType, PixelType>;
using ChangeMapIterator = typename ChangeMapType::const_iterator;
#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
/**
*/
void
SetChangeMap(const ChangeMapType & changeMap);
const ChangeMapType &
GetChangeMap() const;
void
SetChange(const PixelType & oldLabel, const PixelType & newLabel);
void
ClearChangeMap();
protected:
ChangeLabelLabelMapFilter() = default;
~ChangeLabelLabelMapFilter() override = default;
void
GenerateData() override;
void
PrintSelf(std::ostream & os, Indent indent) const override;
ChangeMapType m_MapOfLabelToBeReplaced{};
}; // end of class
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkChangeLabelLabelMapFilter.hxx"
#endif
#endif
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