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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkSliceBySliceImageFilter.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.
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 __itkSliceBySliceImageFilter_h
#define __itkSliceBySliceImageFilter_h
#include "itkImageToImageFilter.h"
namespace itk {
/**
* \class SliceBySliceImageFilter
* \brief Apply a filter or a pipeline slice by slice on an image
*
* SliceBySliceImageFilter let the user apply a filter or a pipeline
* of filters on the slices of an image. The filters must work on images
* smaller of one dimension than the input and output images of the
* SliceBySliceImageFilter - if the SliceBySliceImageFilter work on 3D
* images, the filters used internally must work on 2D images.
*
* The dimension along which the slices are extracted can be selected with SetDimension()
* and defaults to the last one.
*
* SliceBySliceImageFilter takes the input and the output filters of a pipeline
* as parameter. They can be set with SetInputFilter() and SetOutputFilter().
* The pipeline will be run once per slice.
*
* If there is only one filter to apply to the slices of the input image,
* the SetFilter() method can be used to set the filter passed as parameter
* both as the input and as the output filter.
*
* SliceBySliceImageFilter can take several images as input. In that case, the same
* number of slices will be passed to the input filter. If the output filter
* produce several output slices, SliceBySliceImageFilter produce the same number
* of output images. The input images are passed with the same input number
* to the input filter - if SetInput( 3, img ) is used on the SliceBySliceImageFilter
* the corresponding slice will be passed to the input filter with SetInput( 3, img ).
* See http://www.itk.org/pipermail/insight-users/2008-May/026112.html for an
* example of usage of that feature with MaskImageFilter.
*
* The requested region is always enlarged by the filter to cover entirely
* the whole slice - however, only the slice in the requested region are
* processed (the requested region is not enlarged to the whole image if
* not needed).
*
* The ouput images of SliceBySliceImageFilter must be of the same size than the
* input images. All the input images must be of the same pixel type. All the
* output images must be of the same pixel type.
*
* \author Gaetan Lehmann
*
* This class was taken from the Insight Journal paper:
* http://insight-journal.org/midas/handle.php?handle=1926/368
*
*/
template<class TInputImage,
class TOutputImage,
class TInputFilter=ImageToImageFilter<
Image< ITK_TYPENAME TInputImage::PixelType, ::itk::GetImageDimension<TInputImage >::ImageDimension - 1 >,
Image< ITK_TYPENAME TOutputImage::PixelType, ::itk::GetImageDimension<TOutputImage>::ImageDimension - 1 > >,
class TOutputFilter=ITK_TYPENAME TInputFilter::Superclass,
class TInternalInputImage=ITK_TYPENAME TInputFilter::InputImageType,
class TInternalOutputImage=ITK_TYPENAME TOutputFilter::OutputImageType >
class ITK_EXPORT SliceBySliceImageFilter :
public ImageToImageFilter<TInputImage, TOutputImage>
{
public:
/** Standard class typedefs. */
typedef SliceBySliceImageFilter Self;
typedef ImageToImageFilter<TInputImage,TOutputImage> Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Superclass typedefs. */
typedef typename Superclass::InputImagePointer InputImagePointer;
/** Standard New method. */
itkNewMacro(Self);
/** Runtime information support. */
itkTypeMacro(SliceBySliceImageFilter, ImageToImageFilter);
/** Image related typedefs. */
typedef TInputImage InputImageType;
typedef typename TInputImage::RegionType RegionType;
typedef typename TInputImage::SizeType SizeType;
typedef typename TInputImage::IndexType IndexType;
typedef typename TInputImage::PixelType PixelType;
typedef typename TInputImage::OffsetType OffsetType;
typedef TOutputImage OutputImageType;
typedef typename TOutputImage::PixelType OutputPixelType;
typedef TInputFilter InputFilterType;
typedef TOutputFilter OutputFilterType;
typedef TInternalInputImage InternalInputImageType;
typedef typename InternalInputImageType::RegionType InternalRegionType;
typedef typename InternalInputImageType::SizeType InternalSizeType;
typedef typename InternalInputImageType::IndexType InternalIndexType;
typedef typename InternalInputImageType::OffsetType InternalOffsetType;
typedef typename InternalInputImageType::PixelType InternalInputPixelType;
typedef TInternalOutputImage InternalOutputImageType;
typedef typename InternalOutputImageType::PixelType InternalOutputPixelType;
/** Image related typedefs. */
itkStaticConstMacro(ImageDimension, unsigned int,
TInputImage::ImageDimension);
itkStaticConstMacro(InternalImageDimension, unsigned int,
InternalInputImageType::ImageDimension);
itkSetMacro(Dimension, unsigned int);
itkGetConstMacro(Dimension, unsigned int);
void SetFilter(InputFilterType * filter);
InputFilterType * GetFilter()
{
return this->m_InputFilter;
}
const InputFilterType * GetFilter() const
{
return this->m_InputFilter;
}
void SetInputFilter( InputFilterType * filter );
itkGetObjectMacro( InputFilter, InputFilterType );
void SetOutputFilter( OutputFilterType * filter );
itkGetObjectMacro( OutputFilter, OutputFilterType );
/** The index of the slice currently processed by the filter. This is intended to be
* used with the IterationEvent sent before the processing of each object. It contains
* a relevant value only during the filter update.
*/
itkGetConstMacro(SliceIndex, long);
protected:
SliceBySliceImageFilter();
~SliceBySliceImageFilter() {};
void GenerateData();
void PrintSelf(std::ostream& os, Indent indent) const;
void GenerateInputRequestedRegion();
void EnlargeOutputRequestedRegion(DataObject *itkNotUsed(output));
private:
SliceBySliceImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
unsigned int m_Dimension;
typename InputFilterType::Pointer m_InputFilter;
typename OutputFilterType::Pointer m_OutputFilter;
long m_SliceIndex;
};
}
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkSliceBySliceImageFilter.txx"
#endif
#endif
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