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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 itkLevelSetDomainMapImageFilter_h
#define itkLevelSetDomainMapImageFilter_h
#include "itkImageToImageFilter.h"
#include "itkImageRegionIterator.h"
#include "itkImageRegionIteratorWithIndex.h"
#include <list>
#include <utility>
#include <vector>
namespace itk
{
/**
\class LevelSetDomainMapImageFilter
\tparam TInputImage Image where the pixel type is a container (e.g. std::list) of level set ids
\tparam TOutputImage Image where the pixel type is an identifier integer to associate with each subdomain
Every subdomain (image region) has a consistent set of level sets ids associated with every pixel.
\ingroup ITKLevelSetsv4
*/
template <typename TInputImage, typename TOutputImage>
class ITK_TEMPLATE_EXPORT LevelSetDomainMapImageFilter : public ImageToImageFilter<TInputImage, TOutputImage>
{
public:
ITK_DISALLOW_COPY_AND_MOVE(LevelSetDomainMapImageFilter);
using Self = LevelSetDomainMapImageFilter;
using Superclass = ImageToImageFilter<TInputImage, TOutputImage>;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
static constexpr unsigned int ImageDimension = TInputImage::ImageDimension;
/** Method for creation through object factory */
itkNewMacro(Self);
/** \see LightObject::GetNameOfClass() */
itkOverrideGetNameOfClassMacro(LevelSetDomainMapImageFilter);
using InputImageType = TInputImage;
using InputImageConstPointer = typename InputImageType::ConstPointer;
using InputImagePixelType = typename InputImageType::PixelType;
using InputImageRegionType = typename InputImageType::RegionType;
using InputImageSizeType = typename InputImageType::SizeType;
using InputImageSizeValueType = typename InputImageSizeType::SizeValueType;
using InputImageIndexType = typename InputImageType::IndexType;
using OutputImageType = TOutputImage;
using OutputImagePointer = typename OutputImageType::Pointer;
using OutputImageIndexType = typename OutputImageType::IndexType;
using OutputImagePixelType = typename OutputImageType::PixelType;
using InputConstIteratorType = ImageRegionConstIteratorWithIndex<InputImageType>;
using InputIndexIteratorType = ImageRegionIteratorWithIndex<InputImageType>;
using InputIteratorType = ImageRegionIterator<InputImageType>;
using OutputConstIteratorType = ImageRegionConstIteratorWithIndex<OutputImageType>;
using OutputIndexIteratorType = ImageRegionIteratorWithIndex<OutputImageType>;
using OutputIteratorType = ImageRegionIterator<OutputImageType>;
/**
* \class LevelSetDomain
* \brief Specifies an image region where an unique std::list of level sets Id's are defined.
* \ingroup ITKLevelSetsv4 */
class LevelSetDomain
{
public:
LevelSetDomain() = default;
LevelSetDomain(const InputImageRegionType & reg, InputImagePixelType iList)
: m_Region(reg)
, m_IdList(std::move(iList))
{}
const InputImageRegionType *
GetRegion() const
{
return &(this->m_Region);
}
const InputImagePixelType *
GetIdList() const
{
return &(this->m_IdList);
}
private:
InputImageRegionType m_Region;
InputImagePixelType m_IdList;
};
/** Map from a integer identifier to the level set list image domain. */
using DomainMapType = std::map<IdentifierType, LevelSetDomain>;
/** Get a map from the identifier for the domains with consistent level set ids
* * struct containing an (int, string, etc) identifier and the ImageRegion that
* specifies the domain. */
const DomainMapType &
GetDomainMap() const;
protected:
LevelSetDomainMapImageFilter();
~LevelSetDomainMapImageFilter() override = default;
/** Computes a consistent region for the same set of overlapping
* level set support. */
InputImageRegionType
ComputeConsistentRegion(const InputImageRegionType & inputRegion) const;
/** Identify image partitions where each partition has the same overlapping
* level set support */
void
GenerateData() override;
/** Display */
void
PrintSelf(std::ostream & os, Indent indent) const override;
private:
DomainMapType m_DomainMap{};
const InputImageType * m_InputImage{};
OutputImageType * m_OutputImage{};
};
} /* namespace itk */
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkLevelSetDomainMapImageFilter.hxx"
#endif
#endif
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