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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkBinaryFunctorImageFilter.h,v $
Language: C++
Date: $Date: 2007-09-03 13:45:32 $
Version: $Revision: 1.36 $
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 __itkBinaryFunctorImageFilter_h
#define __itkBinaryFunctorImageFilter_h
#include "itkInPlaceImageFilter.h"
#include "itkImageRegionIteratorWithIndex.h"
namespace itk
{
/** \class BinaryFunctorImageFilter
* \brief Implements pixel-wise generic operation of two images.
*
* This class is parameterized over the types of the two input images
* and the type of the output image. It is also parameterized by the
* operation to be applied. A Functor style is used.
*
* \sa UnaryFunctorImageFilter TernaryFunctorImageFilter
*
* \ingroup IntensityImageFilters Multithreaded
*/
template <class TInputImage1, class TInputImage2,
class TOutputImage, class TFunction >
class ITK_EXPORT BinaryFunctorImageFilter :
public InPlaceImageFilter<TInputImage1,TOutputImage>
{
public:
/** Standard class typedefs. */
typedef BinaryFunctorImageFilter 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(BinaryFunctorImageFilter, InPlaceImageFilter);
/** Some convenient 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 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);
/** 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() { 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 (m_Functor != functor)
{
m_Functor = functor;
this->Modified();
}
}
/** ImageDimension constants */
itkStaticConstMacro(
InputImage1Dimension, unsigned int, TInputImage1::ImageDimension);
itkStaticConstMacro(
InputImage2Dimension, unsigned int, TInputImage2::ImageDimension);
itkStaticConstMacro(
OutputImageDimension, unsigned int, TOutputImage::ImageDimension);
#ifdef ITK_USE_CONCEPT_CHECKING
/** Begin concept checking */
itkConceptMacro(SameDimensionCheck1,
(Concept::SameDimension<itkGetStaticConstMacro(InputImage1Dimension),
itkGetStaticConstMacro(InputImage2Dimension)>));
itkConceptMacro(SameDimensionCheck2,
(Concept::SameDimension<itkGetStaticConstMacro(InputImage1Dimension),
itkGetStaticConstMacro(OutputImageDimension)>));
/** End concept checking */
#endif
protected:
BinaryFunctorImageFilter();
virtual ~BinaryFunctorImageFilter() {}
/** BinaryFunctorImageFilter 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:
BinaryFunctorImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
FunctorType m_Functor;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkBinaryFunctorImageFilter.txx"
#endif
#endif
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