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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* 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
*
* http://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.
*
*=========================================================================*/
/*=========================================================================
*
* Portions of this file are subject to the VTK Toolkit Version 3 copyright.
*
* Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
*
* For complete copyright, license and disclaimer of warranty information
* please refer to the NOTICE file at the top of the ITK source tree.
*
*=========================================================================*/
#ifndef itkLabelMapFilter_h
#define itkLabelMapFilter_h
#include "itkImageToImageFilter.h"
#include "itkFastMutexLock.h"
namespace itk
{
/** \class LabelMapFilter
* \brief Base class for filters that take an image as input and overwrite that image as the output
*
* LabelMapFilter is the base class for all process objects whose
* are using a LabelMapFilter as input. It manage several threads,
* and run a method ThreadedGenerateData() for each object in the LabelMapFilter.
* With that class, the developer doesn't need to take care of iterating over all the objects in
* the image, or to manage by hand the threads.
*
* \author Gaetan Lehmann. Biologie du Developpement et de la Reproduction, INRA de Jouy-en-Josas, France.
*
* This implementation was taken from the Insight Journal paper:
* https://hdl.handle.net/1926/584 or
* http://www.insight-journal.org/browse/publication/176
*
* \sa LabelMapToBinaryImageFilter, LabelMapToLabelImageFilter
* \ingroup ImageEnhancement MathematicalMorphologyImageFilters
* \ingroup LabeledImageFilters
* \ingroup ITKLabelMap
*/
template< typename TInputImage, typename TOutputImage >
class ITK_TEMPLATE_EXPORT LabelMapFilter:
public
ImageToImageFilter< TInputImage, TOutputImage >
{
public:
/** Standard class typedefs. */
typedef LabelMapFilter Self;
typedef ImageToImageFilter< TInputImage, TOutputImage > Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/** Run-time type information (and related methods). */
itkTypeMacro(LabelMapFilter, ImageToImageFilter);
/** Standard New method. */
itkNewMacro(Self);
/** Some convenient typedefs. */
typedef typename Superclass::InputImageType InputImageType;
typedef typename Superclass::InputImagePointer InputImagePointer;
typedef typename Superclass::InputImageConstPointer InputImageConstPointer;
typedef typename Superclass::InputImageRegionType InputImageRegionType;
typedef typename Superclass::InputImagePixelType InputImagePixelType;
typedef typename InputImageType::LabelObjectType LabelObjectType;
typedef TOutputImage OutputImageType;
typedef typename OutputImageType::Pointer OutputImagePointer;
typedef typename OutputImageType::ConstPointer OutputImageConstPointer;
typedef typename OutputImageType::RegionType OutputImageRegionType;
typedef typename OutputImageType::PixelType OutputImagePixelType;
/** ImageDimension constants */
itkStaticConstMacro(InputImageDimension, unsigned int, TInputImage::ImageDimension);
itkStaticConstMacro(OutputImageDimension, unsigned int, TOutputImage::ImageDimension);
/** LabelMapFilter requires the entire input to be
* available. Thus, it needs to provide an implementation of
* GenerateInputRequestedRegion(). */
void GenerateInputRequestedRegion() ITK_OVERRIDE;
/** LabelMapFilter will produce the entire output. */
void EnlargeOutputRequestedRegion( DataObject * itkNotUsed(output) ) ITK_OVERRIDE;
protected:
LabelMapFilter();
~LabelMapFilter() ITK_OVERRIDE;
virtual void BeforeThreadedGenerateData() ITK_OVERRIDE;
virtual void AfterThreadedGenerateData() ITK_OVERRIDE;
virtual void ThreadedGenerateData(const OutputImageRegionType & outputRegionForThread, ThreadIdType threadId) ITK_OVERRIDE;
virtual void ThreadedProcessLabelObject(LabelObjectType *labelObject);
/**
* Return the label collection image to use. This method may be overloaded
* if the label collection image to use is not the input image.
*/
virtual InputImageType * GetLabelMap()
{
return static_cast< InputImageType * >( const_cast< DataObject * >( this->ProcessObject::GetInput(0) ) );
}
typename FastMutexLock::Pointer m_LabelObjectContainerLock;
private:
ITK_DISALLOW_COPY_AND_ASSIGN(LabelMapFilter);
typename InputImageType::Iterator m_LabelObjectIterator;
float m_InverseNumberOfLabelObjects;
SizeValueType m_NumberOfLabelObjectsProcessed;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkLabelMapFilter.hxx"
#endif
#endif
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