/usr/include/ITK-4.9/itkKernelFunctionBase.h is in libinsighttoolkit4-dev 4.9.0-4ubuntu1.
This file is owned by root:root, with mode 0o644.
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*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkKernelFunctionBase_h
#define itkKernelFunctionBase_h
#include "itkFunctionBase.h"
#include "itkConceptChecking.h"
#include "itkNumericTraits.h"
#include "vnl/vnl_math.h"
namespace itk
{
/** \class KernelFunctionBase
* \brief Kernel used for density estimation and nonparameteric regression.
*
* This class encapsulates the smoothing kernel used for statistical density
* estimation and nonparameteric regression. The basic idea of the kernel
* approach is to weight observations by a smooth function (the kernel)
* to created a smoothed approximation.
*
* Reference:
* Silverman, B. W. (1986) Density Estimation. London: Chapman and Hall.
*
* \ingroup Functions
* \ingroup ITKCommon
*/
template< typename TRealValueType = double >
class KernelFunctionBase:public FunctionBase< TRealValueType, TRealValueType >
{
public:
/** Standard class typedefs. */
typedef KernelFunctionBase Self;
typedef FunctionBase< TRealValueType, TRealValueType > Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
typedef TRealValueType RealType;
/** Run-time type information (and related methods). */
itkTypeMacro(KernelFunctionBase, FunctionBase);
/** Evaluate the function. Subclasses must implement this. */
virtual TRealValueType Evaluate(const TRealValueType & u) const ITK_OVERRIDE = 0;
#ifdef ITK_USE_STRICT_CONCEPT_CHECKING
// Begin concept checking
itkConceptMacro( TRealValueTypeIsFloatingPointCheck,
( Concept::IsFloatingPoint< TRealValueType > ) );
// End concept checking
#endif
protected:
KernelFunctionBase() {};
virtual ~KernelFunctionBase() {};
void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE
{ Superclass::PrintSelf(os, indent); }
};
} // end namespace itk
#endif // itkKernelFunctionBase_h
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