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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkLabelMapFilter.h
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
Portions of this code are covered under the VTK copyright.
See VTKCopyright.txt or http://www.kitware.com/VTKCopyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#ifndef __itkLabelMapFilter_h
#define __itkLabelMapFilter_h
#include "itkImageToImageFilter.h"
#include "itkProgressReporter.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:
* http://hdl.handle.net/1926/584 or
* http://www.insight-journal.org/browse/publication/176
*
* \sa LabelMapToBinaryImageFilter, LabelMapToLabelImageFilter
* \ingroup ImageEnhancement MathematicalMorphologyImageFilters
* \ingroup LabeledImageFilters
*/
template <class TInputImage, class TOutputImage>
class ITK_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 TInputImage InputImageType;
typedef typename InputImageType::Pointer InputImagePointer;
typedef typename InputImageType::ConstPointer InputImageConstPointer;
typedef typename InputImageType::RegionType InputImageRegionType;
typedef typename InputImageType::PixelType 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();
/** LabelMapFilter will produce the entire output. */
void EnlargeOutputRequestedRegion(DataObject *itkNotUsed(output));
protected:
LabelMapFilter();
~LabelMapFilter();
virtual void BeforeThreadedGenerateData();
virtual void AfterThreadedGenerateData();
virtual void ThreadedGenerateData(const OutputImageRegionType& outputRegionForThread, int threadId );
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;
typedef typename InputImageType::LabelObjectContainerType LabelObjectContainerType;
typedef typename LabelObjectContainerType::const_iterator LabelObjectContainerConstIterator;
private:
LabelMapFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
LabelObjectContainerConstIterator m_LabelObjectIterator;
ProgressReporter * m_Progress;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkLabelMapFilter.txx"
#endif
#endif
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