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/*========================================================================= |
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Program: Insight Segmentation & Registration Toolkit |
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Module: $RCSfile: itkDerivativeOperator.h.html,v $ |
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Language: C++ |
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Date: $Date: 2006/01/17 19:15:34 $ |
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Version: $Revision: 1.4 $ |
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Copyright (c) Insight Software Consortium. All rights reserved. |
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See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details. |
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This software is distributed WITHOUT ANY WARRANTY; without even |
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR |
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PURPOSE. See the above copyright notices for more information. |
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=========================================================================*/ |
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#ifndef __itkDerivativeOperator_h |
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#define __itkDerivativeOperator_h |
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#include "itkExceptionObject.h" |
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#include "itkNeighborhoodOperator.h" |
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namespace itk { |
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/** |
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* \class DerivativeOperator |
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* \brief A NeighborhoodOperator for taking an n-th order derivative |
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* at a pixel |
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* |
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* DerivativeOperator's coefficients are a tightest-fitting convolution |
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* kernel for calculating the n-th order directional derivative at a pixel. |
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* DerivativeOperator is a directional NeighborhoodOperator that should be |
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* applied to a Neighborhood or NeighborhoodPointer using the inner product |
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* method. |
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* |
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* \sa NeighborhoodOperator |
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* \sa Neighborhood |
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* \sa ForwardDifferenceOperator |
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* \sa BackwardDifferenceOperator |
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* |
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* \ingroup Operators |
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*/ |
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template<class TPixel, unsigned int VDimension=2, |
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class TAllocator = NeighborhoodAllocator<TPixel> > |
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class ITK_EXPORT DerivativeOperator |
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**: public NeighborhoodOperator<TPixel, VDimension, TAllocator> |
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{ |
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public: |
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/** Standard class typedefs. */ |
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typedef DerivativeOperator Self; |
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TDA |
typedef NeighborhoodOperator<TPixel, VDimension, TAllocator> Superclass; |
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typedef typename Superclass::PixelType PixelType; |
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/** Constructor. */ |
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DerivativeOperator() : m_Order(1) {} |
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/** Copy constructor. */ |
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DerivativeOperator(const Self& other) |
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****: NeighborhoodOperator<TPixel, VDimension, TAllocator>(other) |
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**{ m_Order = other.m_Order; } |
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/** Assignment operator */ |
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Self &operator=(const Self& other) |
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**{ |
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Superclass::operator=(other); |
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m_Order = other.m_Order; |
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return *this; |
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**} |
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/** Sets the order of the derivative. */ |
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void SetOrder(const unsigned int &order) |
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**{ m_Order = order; } |
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/** Returns the order of the derivative. */ |
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unsigned int GetOrder() const { return m_Order; } |
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/** Prints some debugging information */ |
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virtual void PrintSelf(std::ostream &os, Indent i) const |
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**{ |
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os << i << "DerivativeOperator { this=" << this |
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*******<< ", m_Order = " << m_Order << "}" << std::endl; |
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Superclass::PrintSelf(os, i.GetNextIndent()); |
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**} |
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protected: |
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/** Typedef support for coefficient vector type. Necessary to |
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* work around compiler bug on VC++. */ |
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typedef typename Superclass::CoefficientVector CoefficientVector; |
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/** Calculates operator coefficients. */ |
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CoefficientVector GenerateCoefficients(); |
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/** Arranges coefficients spatially in the memory buffer. */ |
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void Fill(const CoefficientVector &coeff) |
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**{ Superclass::FillCenteredDirectional(coeff); } |
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private: |
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/** Order of the derivative. */ |
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unsigned int m_Order; |
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}; |
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} // namespace itk |
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#ifndef ITK_MANUAL_INSTANTIATION |
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#include "itkDerivativeOperator.txx" |
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#endif |
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#endif |
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EOF |
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EOF,EML |
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