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itkHoughTransform2DCirclesImageFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkHoughTransform2DCirclesImageFilter.h,v $
00005   Language:  C++
00006   Date:      $Date: 2006/03/31 14:31:04 $
00007   Version:   $Revision: 1.11 $
00008 
00009   Copyright (c) Insight Software 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 __itkHoughTransform2DCirclesImageFilter_h
00018 #define __itkHoughTransform2DCirclesImageFilter_h
00019 
00020 #ifdef _MSC_VER
00021 #pragma warning ( disable : 4786 )
00022 #endif
00023 
00024 #include "itkImageToImageFilter.h"
00025 #include "itkImage.h"
00026 #include "itkEllipseSpatialObject.h"
00027 
00028 namespace itk
00029 {
00030 
00052 template<typename TInputPixelType, typename TOutputPixelType>
00053 class ITK_EXPORT HoughTransform2DCirclesImageFilter :
00054     public ImageToImageFilter< Image<TInputPixelType,2>, Image<TOutputPixelType,2> >
00055 {
00056 public:
00057    
00059   typedef HoughTransform2DCirclesImageFilter Self;
00060 
00062   typedef Image<TInputPixelType,2> InputImageType;
00063   typedef typename InputImageType::Pointer InputImagePointer;
00064   typedef typename InputImageType::ConstPointer InputImageConstPointer;
00065 
00067   typedef Image<TOutputPixelType,2> OutputImageType;
00068   typedef typename OutputImageType::Pointer OutputImagePointer;
00069 
00070 
00072   typedef ImageToImageFilter< Image<TInputPixelType,2>
00073                               , Image<TOutputPixelType,2> >  Superclass;
00074 
00076   typedef SmartPointer<Self>        Pointer;
00077   typedef SmartPointer<const Self>  ConstPointer;
00078 
00080   typedef typename InputImageType::IndexType IndexType;
00081 
00083   typedef typename InputImageType::PixelType PixelType;
00084 
00086   typedef typename InputImageType::RegionType OutputImageRegionType;
00087 
00089   typedef EllipseSpatialObject<2>       CircleType;
00090   typedef typename CircleType::Pointer CirclePointer;
00091   typedef std::list<CirclePointer>     CirclesListType;
00092 
00094   itkTypeMacro( HoughTransform2DCirclesImageFilter, ImageToImageFilter );
00095 
00097   itkNewMacro(Self);  
00098 
00100   void GenerateData();
00101 
00103   void SetRadius(double radius);
00104 
00106   itkSetMacro(MinimumRadius,double);
00107 
00109   itkSetMacro(MaximumRadius,double);
00110 
00113   itkSetMacro(Threshold,double);
00114 
00116   itkGetMacro(Threshold,double);
00117 
00119   itkGetObjectMacro(RadiusImage,OutputImageType);
00120 
00122   itkSetMacro(SigmaGradient,double);
00123 
00125   itkGetMacro(SigmaGradient,double);
00126 
00128   CirclesListType & GetCircles(unsigned int n=0);
00129 
00131   itkSetMacro(NumberOfCircles,unsigned int);
00132   itkGetMacro(NumberOfCircles,unsigned int);
00134 
00137   itkSetMacro(DiscRadiusRatio,float);
00138   itkGetMacro(DiscRadiusRatio,float);
00140 
00142   itkSetMacro(Variance,float);
00143   itkGetMacro(Variance,float);
00145 
00147   itkSetMacro(SweepAngle,float);
00148   itkGetMacro(SweepAngle,float);
00150 
00151 #ifdef ITK_USE_CONCEPT_CHECKING
00152 
00153   itkConceptMacro(IntConvertibleToOutputCheck,
00154     (Concept::Convertible<int, TOutputPixelType>));
00155   itkConceptMacro(InputGreaterThanDoubleCheck,
00156     (Concept::GreaterThanComparable<PixelType, double>));
00157   itkConceptMacro(OutputPlusIntCheck,
00158     (Concept::AdditiveOperators<TOutputPixelType, int>));
00159   itkConceptMacro(OutputDividedByIntCheck,
00160     (Concept::DivisionOperators<TOutputPixelType, int>));
00161 
00163 #endif
00164 
00165 protected:
00166 
00167   HoughTransform2DCirclesImageFilter();
00168   virtual ~HoughTransform2DCirclesImageFilter() {};
00169 
00170   HoughTransform2DCirclesImageFilter(const Self&) {}
00171   void operator=(const Self&) {}
00172 
00173   void PrintSelf(std::ostream& os, Indent indent) const;
00174 
00178   void GenerateInputRequestedRegion();
00179 
00184   void EnlargeOutputRequestedRegion(DataObject *itkNotUsed(output));
00185 
00186 private:
00187 
00188   float  m_SweepAngle;
00189   double m_MinimumRadius;
00190   double m_MaximumRadius;
00191   double m_Threshold;
00192   double m_SigmaGradient;
00193   OutputImagePointer m_RadiusImage;
00194   CirclesListType m_CirclesList;
00195   unsigned int  m_NumberOfCircles;
00196   float         m_DiscRadiusRatio;
00197   float         m_Variance;
00198   unsigned long m_OldModifiedTime;
00199   unsigned long m_OldNumberOfCircles;
00200 
00201 };
00202 
00203 } // end namespace itk
00204 
00205 #ifndef ITK_MANUAL_INSTANTIATION
00206 #include "itkHoughTransform2DCirclesImageFilter.txx"
00207 #endif
00208 
00209 #endif
00210 

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