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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 itkBinaryThresholdProjectionImageFilter_h
#define itkBinaryThresholdProjectionImageFilter_h
#include "itkProjectionImageFilter.h"
#include "itkConceptChecking.h"
namespace itk
{
/** \class BinaryThresholdProjectionImageFilter
* \brief BinaryThreshold projection
*
*
* This class was contributed to the Insight Journal by Gaetan Lehmann.
* the original paper can be found at
* https://hdl.handle.net/1926/164
*
*
* \author Gaetan Lehmann. Biologie du Developpement et de la Reproduction,
* INRA de Jouy-en-Josas, France.
*
* \sa ProjectionImageFilter
* \sa MedianProjectionImageFilter
* \sa MeanProjectionImageFilter
* \sa MeanProjectionImageFilter
* \sa MaximumProjectionImageFilter
* \sa MinimumProjectionImageFilter
* \sa StandardDeviationProjectionImageFilter
* \sa SumProjectionImageFilter
* \ingroup ITKThresholding
*/
namespace Function
{
template< typename TInputPixel, typename TOutputPixel >
class BinaryThresholdAccumulator
{
public:
BinaryThresholdAccumulator(SizeValueType) {}
~BinaryThresholdAccumulator(){}
inline void Initialize()
{
m_IsForeground = false;
}
inline void operator()(const TInputPixel & input)
{
if ( input >= m_ThresholdValue )
{
m_IsForeground = true;
}
}
inline TOutputPixel GetValue()
{
if ( m_IsForeground )
{
return m_ForegroundValue;
}
else
{
return m_BackgroundValue;
}
}
bool m_IsForeground;
TInputPixel m_ThresholdValue;
TOutputPixel m_ForegroundValue;
TOutputPixel m_BackgroundValue;
};
} // end namespace Function
template< typename TInputImage, typename TOutputImage >
class BinaryThresholdProjectionImageFilter:
public ProjectionImageFilter< TInputImage, TOutputImage,
Function::BinaryThresholdAccumulator<
typename TInputImage::PixelType,
typename TOutputImage::PixelType > >
{
public:
typedef BinaryThresholdProjectionImageFilter Self;
typedef ProjectionImageFilter< TInputImage, TOutputImage,
Function::BinaryThresholdAccumulator<
typename TInputImage::PixelType,
typename TOutputImage::PixelType > > Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/** Runtime information support. */
itkTypeMacro(BinaryThresholdProjectionImageFilter, ProjectionImageFilter);
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Convenient typedefs for simplifying declarations. */
typedef TInputImage InputImageType;
typedef TOutputImage OutputImageType;
/** Image typedef support. */
typedef typename InputImageType::PixelType InputPixelType;
typedef typename OutputImageType::PixelType OutputPixelType;
typedef typename Superclass::AccumulatorType AccumulatorType;
/** Set/Get the output value used as "foreground". Defaults to
* maximum value of PixelType. */
itkSetMacro(ForegroundValue, OutputPixelType);
itkGetConstMacro(ForegroundValue, OutputPixelType);
/** Set/Get the output value used as "background". Defaults to
* NumericTraits<PixelType>::NonpositiveMin(). */
itkSetMacro(BackgroundValue, OutputPixelType);
itkGetConstMacro(BackgroundValue, OutputPixelType);
/** Set/Get the input value consider as "threshold". Defaults to
* NumericTraits<InputPixelType>::max() */
itkSetMacro(ThresholdValue, InputPixelType);
itkGetConstMacro(ThresholdValue, InputPixelType);
#ifdef ITK_USE_CONCEPT_CHECKING
// Begin concept checking
itkConceptMacro( InputPixelTypeGreaterThanComparable,
( Concept::GreaterThanComparable< InputPixelType > ) );
itkConceptMacro( InputHasNumericTraitsCheck,
( Concept::HasNumericTraits< InputPixelType > ) );
// End concept checking
#endif
protected:
BinaryThresholdProjectionImageFilter()
{
m_ForegroundValue = NumericTraits< OutputPixelType >::max();
m_BackgroundValue = NumericTraits< OutputPixelType >::NonpositiveMin();
m_ThresholdValue = NumericTraits< InputPixelType >::ZeroValue();
}
virtual ~BinaryThresholdProjectionImageFilter() ITK_OVERRIDE {}
void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE
{
Superclass::PrintSelf(os, indent);
typedef typename NumericTraits< InputPixelType >::PrintType
InputPixelPrintType;
os << indent << "ForegroundValue: "
<< static_cast< InputPixelPrintType >( m_ForegroundValue )
<< std::endl;
typedef typename NumericTraits< OutputPixelType >::PrintType
OutputPixelPrintType;
os << indent << "BackgroundValue: "
<< static_cast< OutputPixelPrintType >( m_BackgroundValue )
<< std::endl;
os << indent << "ThresholdValue: "
<< static_cast< InputPixelPrintType >( m_ThresholdValue )
<< std::endl;
}
virtual AccumulatorType NewAccumulator(SizeValueType size) const ITK_OVERRIDE
{
AccumulatorType accumulator(size);
accumulator.m_ForegroundValue = m_ForegroundValue;
accumulator.m_BackgroundValue = m_BackgroundValue;
accumulator.m_ThresholdValue = m_ThresholdValue;
return accumulator;
}
/** Pixel value for output foreground */
OutputPixelType m_ForegroundValue;
/** Pixel value for output background */
OutputPixelType m_BackgroundValue;
/** Pixel value for input Threshold */
InputPixelType m_ThresholdValue;
private:
ITK_DISALLOW_COPY_AND_ASSIGN(BinaryThresholdProjectionImageFilter);
}; // end BinaryThresholdProjectionImageFilter
} //end namespace itk
#endif
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