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itkHoughTransform2DLinesImageFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkHoughTransform2DLinesImageFilter.h,v $
00005   Language:  C++
00006   Date:      $Date: 2006/03/29 14:53:39 $
00007   Version:   $Revision: 1.9 $
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 __itkHoughTransform2DLinesImageFilter_h
00018 #define __itkHoughTransform2DLinesImageFilter_h
00019 
00020 #ifdef _MSC_VER
00021 #pragma warning ( disable : 4786 )
00022 #endif
00023 
00024 #include "itkImageToImageFilter.h"
00025 #include "itkImage.h"
00026 #include "itkLineSpatialObject.h"
00027 
00028 namespace itk
00029 {
00030 
00060 template<typename TInputPixelType, typename TOutputPixelType>
00061 class ITK_EXPORT HoughTransform2DLinesImageFilter :
00062     public ImageToImageFilter< Image<TInputPixelType,2>, Image<TOutputPixelType,2> >
00063 {
00064 public:
00065    
00067   typedef HoughTransform2DLinesImageFilter Self;
00068 
00070   typedef Image<TInputPixelType,2> InputImageType;
00071   typedef typename InputImageType::Pointer InputImagePointer;
00072   typedef typename InputImageType::ConstPointer InputImageConstPointer;
00073 
00075   typedef Image<TOutputPixelType,2> OutputImageType;
00076   typedef typename OutputImageType::Pointer OutputImagePointer;
00077 
00079   typedef SmartPointer<Self>        Pointer;
00080   typedef SmartPointer<const Self>  ConstPointer;
00081 
00083   typedef LineSpatialObject<2>         LineType;
00084   typedef typename LineType::Pointer   LinePointer;
00085   typedef std::list<LinePointer>       LinesListType;
00086   typedef LineType::LinePointType      LinePointType;
00087 
00089   typedef ImageToImageFilter<InputImageType, OutputImageType>  Superclass;
00090 
00092   typedef typename InputImageType::IndexType IndexType;
00093 
00095   typedef typename InputImageType::PixelType PixelType;
00096 
00098   typedef typename InputImageType::RegionType OutputImageRegionType;
00099 
00101   itkTypeMacro( HoughTransform2DLinesImageFilter, ImageToImageFilter );
00102 
00104   itkNewMacro(Self);  
00105 
00107   void GenerateData();
00108 
00111   itkSetMacro(Threshold,float);
00112 
00114   itkGetMacro(Threshold,float);
00115 
00119   itkSetMacro(AngleResolution,float);
00120 
00122   itkGetMacro(AngleResolution,float);
00123 
00125   void Simplify(void);
00126 
00128   itkGetObjectMacro(SimplifyAccumulator,OutputImageType);
00129 
00131   LinesListType & GetLines(unsigned int n=0);
00132 
00134   itkSetMacro(NumberOfLines,unsigned int);
00135   itkGetMacro(NumberOfLines,unsigned int);
00137 
00140   itkSetMacro(DiscRadius,float);
00141   itkGetMacro(DiscRadius,float);
00143 
00145   itkSetMacro(Variance,float);
00146   itkGetMacro(Variance,float);
00148 
00149 #ifdef ITK_USE_CONCEPT_CHECKING
00150 
00151   itkConceptMacro(IntConvertibleToOutputCheck,
00152     (Concept::Convertible<int, TOutputPixelType>));
00153   itkConceptMacro(InputGreaterThanFloatCheck,
00154     (Concept::GreaterThanComparable<PixelType, float>));
00155   itkConceptMacro(OutputPlusIntCheck,
00156     (Concept::AdditiveOperators<TOutputPixelType, int>));
00157 
00159 #endif
00160 
00161 protected:
00162 
00163   HoughTransform2DLinesImageFilter();
00164   virtual ~HoughTransform2DLinesImageFilter() {};
00165 
00166   HoughTransform2DLinesImageFilter(const Self&) {}
00167   void operator=(const Self&) {}
00168 
00169   void PrintSelf(std::ostream& os, Indent indent) const;
00170 
00174   void GenerateInputRequestedRegion();
00175 
00182   void GenerateOutputInformation();
00183 
00185   void EnlargeOutputRequestedRegion(DataObject *output);
00186 
00187 private:
00188 
00189   float m_AngleResolution;
00190   float m_Threshold;
00191   OutputImagePointer m_SimplifyAccumulator;
00192   LinesListType m_LinesList;
00193   unsigned int  m_NumberOfLines;
00194   float         m_DiscRadius;
00195   float         m_Variance;
00196   unsigned long m_OldModifiedTime;
00197   unsigned long m_OldNumberOfLines;
00198 };
00199 
00200 } // end namespace itk
00201 
00202 #ifndef ITK_MANUAL_INSTANTIATION
00203 #include "itkHoughTransform2DLinesImageFilter.txx"
00204 #endif
00205 
00206 #endif
00207 

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