ITK  4.1.0
Insight Segmentation and Registration Toolkit
itkLog10ImageFilter.h
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00001 /*=========================================================================
00002  *
00003  *  Copyright Insight Software Consortium
00004  *
00005  *  Licensed under the Apache License, Version 2.0 (the "License");
00006  *  you may not use this file except in compliance with the License.
00007  *  You may obtain a copy of the License at
00008  *
00009  *         http://www.apache.org/licenses/LICENSE-2.0.txt
00010  *
00011  *  Unless required by applicable law or agreed to in writing, software
00012  *  distributed under the License is distributed on an "AS IS" BASIS,
00013  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  *  See the License for the specific language governing permissions and
00015  *  limitations under the License.
00016  *
00017  *=========================================================================*/
00018 #ifndef __itkLog10ImageFilter_h
00019 #define __itkLog10ImageFilter_h
00020 
00021 #include "itkUnaryFunctorImageFilter.h"
00022 #include "vnl/vnl_math.h"
00023 
00024 namespace itk
00025 {
00026 namespace Functor
00027 {
00033 template< class TInput, class TOutput >
00034 class Log10
00035 {
00036 public:
00037   Log10() {}
00038   ~Log10() {}
00039   bool operator!=(const Log10 &) const
00040   {
00041     return false;
00042   }
00044 
00045   bool operator==(const Log10 & other) const
00046   {
00047     return !( *this != other );
00048   }
00049 
00050   inline TOutput operator()(const TInput & A) const
00051   {
00052     return static_cast< TOutput >( vcl_log10( static_cast< double >( A ) ) );
00053   }
00054 };
00055 }
00065 template< class TInputImage, class TOutputImage >
00066 class ITK_EXPORT Log10ImageFilter:
00067   public
00068   UnaryFunctorImageFilter< TInputImage, TOutputImage,
00069                            Functor::Log10<
00070                              typename TInputImage::PixelType,
00071                              typename TOutputImage::PixelType >   >
00072 {
00073 public:
00075   typedef Log10ImageFilter Self;
00076   typedef UnaryFunctorImageFilter<
00077     TInputImage, TOutputImage,
00078     Functor::Log10< typename TInputImage::PixelType,
00079                      typename TOutputImage::PixelType > >  Superclass;
00080 
00081   typedef SmartPointer< Self >       Pointer;
00082   typedef SmartPointer< const Self > ConstPointer;
00083 
00085   itkNewMacro(Self);
00086 
00088   itkTypeMacro(Log10ImageFilter,
00089                UnaryFunctorImageFilter);
00090 
00091 #ifdef ITK_USE_CONCEPT_CHECKING
00092 
00093   itkConceptMacro( InputConvertibleToDoubleCheck,
00094                    ( Concept::Convertible< typename TInputImage::PixelType, double > ) );
00095   itkConceptMacro( DoubleConvertibleToOutputCheck,
00096                    ( Concept::Convertible< double, typename TOutputImage::PixelType > ) );
00097 
00099 #endif
00100 protected:
00101   Log10ImageFilter() {}
00102   virtual ~Log10ImageFilter() {}
00103 private:
00104   Log10ImageFilter(const Self &); //purposely not implemented
00105   void operator=(const Self &);   //purposely not implemented
00106 };
00107 } // end namespace itk
00109 
00110 #endif
00111