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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkCheckerBoardImageFilter.h,v $
Language: C++
Date: $Date: 2007-08-24 12:45:32 $
Version: $Revision: 1.5 $
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 __itkCheckerBoardImageFilter_h
#define __itkCheckerBoardImageFilter_h
#include "itkImageToImageFilter.h"
namespace itk
{
/** \class CheckerBoardImageFilter
* \brief Combines two images in a checkerboard pattern.
*
* CheckerBoardImageFilter takes two input images that must have the same
* dimension, size, origin and spacing and produces an output image of the same
* size by combinining the pixels from the two input images in a checkerboard
* pattern. This filter is commonly used for visually comparing two images, in
* particular for evaluating the results of an image registration process.
*
* This filter is implemented as a multithreaded filter. It provides a
* ThreadedGenerateData() method for its implementation.
*
* \ingroup IntensityImageFilters Multithreaded
*/
template <class TImage>
class ITK_EXPORT CheckerBoardImageFilter:
public ImageToImageFilter<TImage, TImage>
{
public:
/** Standard class typedefs. */
typedef CheckerBoardImageFilter Self;
typedef ImageToImageFilter<TImage,TImage> Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
typedef TImage InputImageType;
typedef TImage OutputImageType;
typedef typename InputImageType::ConstPointer InputImageConstPointer;
typedef typename OutputImageType::Pointer OutputImagePointer;
typedef typename OutputImageType::RegionType ImageRegionType;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(CheckerBoardImageFilter, ImageToImageFilter);
/** Number of dimensions. */
itkStaticConstMacro(ImageDimension, unsigned int,
TImage::ImageDimension);
/** Type to hold the number of checker boxes per dimension */
typedef FixedArray< unsigned int,
::itk::GetImageDimension<TImage>::ImageDimension > PatternArrayType;
/** Connect one of the operands for checker board */
void SetInput1( const TImage * image1);
/** Connect one of the operands for checker board */
void SetInput2( const TImage * image2);
/** Set array with number of checks to make per image dimension */
itkSetMacro( CheckerPattern, PatternArrayType );
itkGetConstReferenceMacro( CheckerPattern, PatternArrayType );
protected:
CheckerBoardImageFilter();
~CheckerBoardImageFilter() {}
void PrintSelf(std::ostream& os, Indent indent) const;
/** CheckerBoardImageFilter 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 ImageRegionType& outputRegionForThread,
int threadId );
private:
CheckerBoardImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
PatternArrayType m_CheckerPattern;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkCheckerBoardImageFilter.txx"
#endif
#endif
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