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/*========================================================================= |
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Program: Insight Segmentation & Registration Toolkit |
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Module: $RCSfile: itkKernelFunction.h.html,v $ |
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Language: C++ |
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Date: $Date: 2006/01/17 19:15:40 $ |
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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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DEF |
#ifndef _itkKernelFunction_h |
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DEF |
#define _itkKernelFunction_h |
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#include "vnl/vnl_math.h" |
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#include "itkFunctionBase.h" |
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namespace itk |
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{ |
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/** \class KernelFunction |
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* \brief Kernel used for density estimation and nonparameteric regression. |
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* |
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* This class encapsulates the smoothing kernel used for statistical density |
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* estimation and nonparameteric regression. The basic idea of the kernel |
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* approach is to weight observations by a smooth function (the kernel) |
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* to created a smoothed approximation. |
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* |
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* Reference: |
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* Silverman, B. W. (1986) Density Estimation. London: Chapman and Hall. |
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* |
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* \ingroup Functions |
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*/ |
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class ITKCommon_EXPORT KernelFunction : public FunctionBase<double,double> |
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{ |
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public: |
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/** Standard class typedefs. */ |
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typedef KernelFunction Self; |
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TDA |
typedef FunctionBase<double,double> Superclass; |
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TDA |
typedef SmartPointer<Self> Pointer; |
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TDA |
typedef SmartPointer<const Self> ConstPointer; |
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/** Run-time type information (and related methods). */ |
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itkTypeMacro(KernelFunction, FunctionBase); |
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/** Evaluate the function. Subclasses must implement this. */ |
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virtual double Evaluate (const double& u) const = 0; |
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protected: |
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KernelFunction(); |
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~KernelFunction(); |
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void PrintSelf(std::ostream& os, Indent indent) const |
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{ Superclass::PrintSelf( os, indent ); } |
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}; |
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} // namespace itk |
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#endif |
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EOF |
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