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itkZeroCrossingImageFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkZeroCrossingImageFilter.h,v $
00005   Language:  C++
00006   Date:      $Date: 2002/09/11 19:39:03 $
00007   Version:   $Revision: 1.8 $
00008 
00009   Copyright (c) 2002 Insight Consortium. All rights reserved.
00010   See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
00011 
00012      This software is distributed WITHOUT ANY WARRANTY; without even 
00013      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00014      PURPOSE.  See the above copyright notices for more information.
00015 
00016 =========================================================================*/
00017 #ifndef __itkZeroCrossingImageFilter_h
00018 #define __itkZeroCrossingImageFilter_h
00019 
00020 #include "itkImageToImageFilter.h"
00021 #include "itkImage.h"
00022 namespace itk
00023 {  
00055 template<class TInputImage, class TOutputImage>
00056 class ITK_EXPORT ZeroCrossingImageFilter
00057   : public ImageToImageFilter<TInputImage, TOutputImage>
00058 {
00059 public:
00061   typedef ZeroCrossingImageFilter    Self;
00062   typedef ImageToImageFilter<TInputImage, TOutputImage> Superclass;
00063   
00065   typedef TInputImage  InputImageType;
00066   typedef TOutputImage OutputImageType;
00067   
00069   typedef SmartPointer<Self>  Pointer;
00070   typedef SmartPointer<const Self>  ConstPointer;
00071   
00073   typedef typename TInputImage::PixelType   InputImagePixelType;
00074   typedef typename TOutputImage::PixelType  OutputImagePixelType;
00075   
00077   itkNewMacro(Self);  
00078   
00080   typedef typename TOutputImage::RegionType OutputImageRegionType;
00081   
00083   itkTypeMacro(ZeroCrossingImageFilter, ImageToImageFilter);
00084   
00086   itkStaticConstMacro(ImageDimension, unsigned int,
00087                       TInputImage::ImageDimension );
00088   
00097   virtual void GenerateInputRequestedRegion() throw(InvalidRequestedRegionError);
00098 
00100   itkSetMacro(ForegroundValue, OutputImagePixelType);
00101   itkGetMacro(ForegroundValue, OutputImagePixelType);
00102   
00104   itkSetMacro(BackgroundValue, OutputImagePixelType);
00105   itkGetMacro(BackgroundValue, OutputImagePixelType);
00106   
00107 protected:
00108   ZeroCrossingImageFilter()
00109     {
00110       m_ForegroundValue = NumericTraits<OutputImagePixelType>::One;
00111       m_BackgroundValue = NumericTraits<OutputImagePixelType>::Zero;
00112     }
00113   ~ZeroCrossingImageFilter(){}
00114   void PrintSelf(std::ostream& os, Indent indent) const;
00115   
00116   ZeroCrossingImageFilter(const Self&) {}
00117   OutputImagePixelType m_BackgroundValue;
00118   OutputImagePixelType m_ForegroundValue;
00119   
00131   void ThreadedGenerateData(const OutputImageRegionType& outputRegionForThread,
00132                             int threadId );
00133 };
00134   
00135 } //end of namespace itk
00136 
00137 #ifndef ITK_MANUAL_INSTANTIATION
00138 #include "itkZeroCrossingImageFilter.txx"
00139 #endif
00140   
00141 #endif
00142 

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