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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkConvolutionImageFilter.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 __itkConvolutionImageFilter_h
#define __itkConvolutionImageFilter_h
#include "itkImageToImageFilter.h"
namespace itk {
/** \class ConvolutionImageFilter
* \brief Convolve a given image with an arbitrary image kernel
*
* http://hdl.handle.net/1926/1323
*
* \author Nicholas J. Tustison
* \author James C. Gee
*/
template<class TInputImage, class TOutputImage = TInputImage>
class ITK_EXPORT ConvolutionImageFilter
: public ImageToImageFilter<TInputImage, TOutputImage>
{
public:
typedef ConvolutionImageFilter Self;
typedef ImageToImageFilter<TInputImage, 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( ConvolutionImageFilter, ImageToImageFilter );
/** Dimensionality of input and output data is assumed to be the same. */
itkStaticConstMacro( ImageDimension, unsigned int,
TInputImage::ImageDimension );
typedef TInputImage InputImageType;
typedef TOutputImage OutputImageType;
typedef typename InputImageType::PixelType InputPixelType;
typedef typename OutputImageType::PixelType OutputPixelType;
typedef typename OutputImageType::RegionType OutputRegionType;
itkSetInputMacro( ImageKernel, InputImageType, 1 );
itkGetInputMacro( ImageKernel, InputImageType, 1 );
/**
* Normalize the output image by the sum of the kernel components
*/
itkSetMacro( Normalize, bool );
itkGetConstMacro( Normalize, bool );
itkBooleanMacro( Normalize );
/** ConvolutionImageFilter needs a smaller 2nd input (the image kernel)
* requested region than output requested region. As such, this filter
* needs to provide an implementation for GenerateInputRequestedRegion() in
* order to inform the pipeline execution model.
* \sa ProcessObject::GenerateInputRequestedRegion() */
virtual void GenerateInputRequestedRegion();
protected:
/** de/constructor */
ConvolutionImageFilter();
~ConvolutionImageFilter();
void PrintSelf( std::ostream& os, Indent indent ) const;
void ThreadedGenerateData(const OutputRegionType& outputRegionForThread, int threadId);
private:
ConvolutionImageFilter( const Self& ); //purposely not implemented
void operator=( const Self& ); //purposely not implemented
private:
bool m_Normalize;
};
}
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkConvolutionImageFilter.txx"
#endif
#endif
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