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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkTernaryFunctorImageFilter.h,v $
Language: C++
Date: $Date: 2007-09-03 13:45:32 $
Version: $Revision: 1.39 $
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.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 __itkTernaryFunctorImageFilter_h
#define __itkTernaryFunctorImageFilter_h
#include "itkInPlaceImageFilter.h"
#include "itkImageRegionIteratorWithIndex.h"
namespace itk
{
/** \class TernaryFunctorImageFilter
* \brief Implements pixel-wise generic operation of three images.
*
* This class is parameterized over the types of the three input images
* and the type of the output image. It is also parameterized by the
* operation to be applied, using a Functor style.
*
* \sa BinaryFunctorImageFilter UnaryFunctorImageFilter
*
* \ingroup IntensityImageFilters Multithreaded
*/
template <class TInputImage1, class TInputImage2,
class TInputImage3, class TOutputImage, class TFunction >
class ITK_EXPORT TernaryFunctorImageFilter :
public InPlaceImageFilter<TInputImage1,TOutputImage>
{
public:
/** Standard class typedefs. */
typedef TernaryFunctorImageFilter Self;
typedef InPlaceImageFilter<TInputImage1,TOutputImage> Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(TernaryFunctorImageFilter, InPlaceImageFilter);
/** Some typedefs. */
typedef TFunction FunctorType;
typedef TInputImage1 Input1ImageType;
typedef typename Input1ImageType::ConstPointer Input1ImagePointer;
typedef typename Input1ImageType::RegionType Input1ImageRegionType;
typedef typename Input1ImageType::PixelType Input1ImagePixelType;
typedef TInputImage2 Input2ImageType;
typedef typename Input2ImageType::ConstPointer Input2ImagePointer;
typedef typename Input2ImageType::RegionType Input2ImageRegionType;
typedef typename Input2ImageType::PixelType Input2ImagePixelType;
typedef TInputImage3 Input3ImageType;
typedef typename Input3ImageType::ConstPointer Input3ImagePointer;
typedef typename Input3ImageType::RegionType Input3ImageRegionType;
typedef typename Input3ImageType::PixelType Input3ImagePixelType;
typedef TOutputImage OutputImageType;
typedef typename OutputImageType::Pointer OutputImagePointer;
typedef typename OutputImageType::RegionType OutputImageRegionType;
typedef typename OutputImageType::PixelType OutputImagePixelType;
/** Connect one of the operands for pixel-wise addition. */
void SetInput1( const TInputImage1 *image1);
/** Connect one of the operands for pixel-wise addition. */
void SetInput2( const TInputImage2 *image2);
/** Connect one of the operands for pixel-wise addition. */
void SetInput3( const TInputImage3 *image3);
/** Get the functor object. The functor is returned by reference.
* (Functors do not have to derive from itk::LightObject, so they do
* not necessarily have a reference count. So we cannot return a
* SmartPointer). */
FunctorType& GetFunctor(void) { return m_Functor; };
/** Get the functor object. The functor is returned by reference.
* (Functors do not have to derive from itk::LightObject, so they do
* not necessarily have a reference count. So we cannot return a
* SmartPointer.) */
const FunctorType& GetFunctor() const
{
return m_Functor;
};
/** Set the functor object. This replaces the current Functor with a
* copy of the specified Functor. This allows the user to specify a
* functor that has ivars set differently than the default functor.
* This method requires an operator==() be defined on the functor
* (or the compiler's default implementation of operator==() being
* appropriate). */
void SetFunctor(const FunctorType& functor)
{
if (! (functor == m_Functor) )
{
m_Functor = functor;
this->Modified();
}
}
/** Image dimensions */
itkStaticConstMacro(Input1ImageDimension, unsigned int,
TInputImage1::ImageDimension);
itkStaticConstMacro(Input2ImageDimension, unsigned int,
TInputImage2::ImageDimension);
itkStaticConstMacro(Input3ImageDimension, unsigned int,
TInputImage3::ImageDimension);
itkStaticConstMacro(OutputImageDimension, unsigned int,
TOutputImage::ImageDimension);
#ifdef ITK_USE_CONCEPT_CHECKING
/** Begin concept checking */
itkConceptMacro(SameDimensionCheck1,
(Concept::SameDimension<Input1ImageDimension, Input2ImageDimension>));
itkConceptMacro(SameDimensionCheck2,
(Concept::SameDimension<Input1ImageDimension, Input3ImageDimension>));
itkConceptMacro(SameDimensionCheck3,
(Concept::SameDimension<Input1ImageDimension, OutputImageDimension>));
/** End concept checking */
#endif
protected:
TernaryFunctorImageFilter();
virtual ~TernaryFunctorImageFilter() {};
/** Validate the presence of all three inputs. If one or more inputs
* are missing, throw an exception. */
void BeforeThreadedGenerateData();
/** TernaryFunctorImageFilter can be implemented as a multithreaded filter.
* Therefore, this implementation provides a ThreadedGenerateData() routine
* which is called for each processing thread. The output image data is
* allocated automatically by the superclass prior to calling
* ThreadedGenerateData(). ThreadedGenerateData can only write to the
* portion of the output image specified by the parameter
* "outputRegionForThread"
*
* \sa ImageToImageFilter::ThreadedGenerateData(),
* ImageToImageFilter::GenerateData() */
void ThreadedGenerateData(const OutputImageRegionType& outputRegionForThread,
int threadId );
private:
TernaryFunctorImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
FunctorType m_Functor;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkTernaryFunctorImageFilter.txx"
#endif
#endif
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