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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.
*
*=========================================================================*/
#ifndef itkLabelMapToBinaryImageFilter_h
#define itkLabelMapToBinaryImageFilter_h
#include "itkLabelMapFilter.h"
#include "itkBarrier.h"
namespace itk
{
/** \class LabelMapToBinaryImageFilter
* \brief Convert a LabelMap to a binary image.
*
* LabelMapToBinaryImageFilter to a binary image. All the objects in the image
* are used as foreground. The background values of the original binary image
* can be restored by passing this image to the filter with the
* SetBackgroundImage() method.
*
* This implementation was taken from the Insight Journal paper:
* https://hdl.handle.net/1926/584 or
* http://www.insight-journal.org/browse/publication/176
*
* \author Gaetan Lehmann. Biologie du Developpement et de la Reproduction,
* INRA de Jouy-en-Josas, France.
*
* \sa LabelMapToLabelImageFilter, LabelMapMaskImageFilter
* \ingroup ImageEnhancement MathematicalMorphologyImageFilters
* \ingroup ITKLabelMap
*/
template< typename TInputImage, typename TOutputImage >
class ITK_TEMPLATE_EXPORT LabelMapToBinaryImageFilter:
public LabelMapFilter< TInputImage, TOutputImage >
{
public:
/** Standard class typedefs. */
typedef LabelMapToBinaryImageFilter Self;
typedef LabelMapFilter< TInputImage, TOutputImage > Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/** Some convenient typedefs. */
typedef TInputImage InputImageType;
typedef TOutputImage OutputImageType;
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 typename OutputImageType::Pointer OutputImagePointer;
typedef typename OutputImageType::ConstPointer OutputImageConstPointer;
typedef typename OutputImageType::RegionType OutputImageRegionType;
typedef typename OutputImageType::PixelType OutputImagePixelType;
typedef typename OutputImageType::IndexType IndexType;
/** ImageDimension constants */
itkStaticConstMacro(InputImageDimension, unsigned int, TInputImage::ImageDimension);
itkStaticConstMacro(OutputImageDimension, unsigned int, TOutputImage::ImageDimension);
/** Standard New method. */
itkNewMacro(Self);
/** Runtime information support. */
itkTypeMacro(LabelMapToBinaryImageFilter, ImageToImageFilter);
/**
* Set/Get the value used as "background" in the output image.
* Defaults to NumericTraits<PixelType>::NonpositiveMin().
*/
itkSetMacro(BackgroundValue, OutputImagePixelType);
itkGetConstMacro(BackgroundValue, OutputImagePixelType);
/**
* Set/Get the value used as "foreground" in the output image.
* Defaults to NumericTraits<PixelType>::max().
*/
itkSetMacro(ForegroundValue, OutputImagePixelType);
itkGetConstMacro(ForegroundValue, OutputImagePixelType);
/** Set/Get the background image top be used to restore the background values
*/
void SetBackgroundImage(const OutputImageType *input)
{
// Process object is not const-correct so the const casting is required.
this->SetNthInput( 1, const_cast< OutputImageType * >( input ) );
}
OutputImageType * GetBackgroundImage()
{
return static_cast< OutputImageType * >( const_cast< DataObject * >( this->ProcessObject::GetInput(1) ) );
}
/** Set the input image */
void SetInput1(const InputImageType *input)
{
this->SetInput(input);
}
/** Set the marker image */
void SetInput2(const OutputImageType *input)
{
this->SetBackgroundImage(input);
}
protected:
LabelMapToBinaryImageFilter();
~LabelMapToBinaryImageFilter() ITK_OVERRIDE {}
/** LabelMapToBinaryImageFilter needs the entire input be
* available. Thus, it needs to provide an implementation of
* GenerateInputRequestedRegion(). */
void GenerateInputRequestedRegion() ITK_OVERRIDE;
/** LabelMapToBinaryImageFilter will produce the entire output. */
void EnlargeOutputRequestedRegion( DataObject *itkNotUsed(output) ) ITK_OVERRIDE;
virtual void BeforeThreadedGenerateData() ITK_OVERRIDE;
virtual void ThreadedGenerateData(const OutputImageRegionType & outputRegionForThread, ThreadIdType threadId) ITK_OVERRIDE;
virtual void ThreadedProcessLabelObject(LabelObjectType *labelObject) ITK_OVERRIDE;
void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE;
private:
ITK_DISALLOW_COPY_AND_ASSIGN(LabelMapToBinaryImageFilter);
OutputImagePixelType m_BackgroundValue;
OutputImagePixelType m_ForegroundValue;
typename Barrier::Pointer m_Barrier;
}; // end of class
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkLabelMapToBinaryImageFilter.hxx"
#endif
#endif
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