ITK  4.1.0
Insight Segmentation and Registration Toolkit
itkMaximumImageFilter.h
Go to the documentation of this file.
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 __itkMaximumImageFilter_h
00019 #define __itkMaximumImageFilter_h
00020 
00021 #include "itkBinaryFunctorImageFilter.h"
00022 
00023 namespace itk
00024 {
00025 namespace Functor
00026 {
00032 template< class TInput1, class TInput2 = TInput1, class TOutput = TInput1 >
00033 class Maximum
00034 {
00035 public:
00036   Maximum() {}
00037   ~Maximum() {}
00038   bool operator!=(const Maximum &) const
00039   {
00040     return false;
00041   }
00043 
00044   bool operator==(const Maximum & other) const
00045   {
00046     return !( *this != other );
00047   }
00048 
00049   inline TOutput operator()(const TInput1 & A, const TInput2 & B) const
00050   {
00051     if ( A > B )
00052       {
00053       return static_cast< TOutput >( A );
00054       }
00055     else
00056       {
00057       return static_cast< TOutput >( B );
00058       }
00059   }
00060 };
00061 }
00080 template< class TInputImage1, class TInputImage2 = TInputImage1, class TOutputImage = TInputImage1 >
00081 class ITK_EXPORT MaximumImageFilter:
00082   public
00083   BinaryFunctorImageFilter< TInputImage1, TInputImage2, TOutputImage,
00084                             Functor::Maximum<
00085                               typename TInputImage1::PixelType,
00086                               typename TInputImage2::PixelType,
00087                               typename TOutputImage::PixelType >   >
00088 {
00089 public:
00091   typedef MaximumImageFilter Self;
00092   typedef BinaryFunctorImageFilter< TInputImage1, TInputImage2, TOutputImage,
00093                                     Functor::Maximum<
00094                                       typename TInputImage1::PixelType,
00095                                       typename TInputImage2::PixelType,
00096                                       typename TOutputImage::PixelType >
00097                                     >                                 Superclass;
00098 
00099   typedef SmartPointer< Self >       Pointer;
00100   typedef SmartPointer< const Self > ConstPointer;
00101 
00103   itkNewMacro(Self);
00104 
00106   itkTypeMacro(MaximumImageFilter,
00107                BinaryFunctorImageFilter);
00108 
00109 #ifdef ITK_USE_CONCEPT_CHECKING
00110 
00111   itkConceptMacro( Input1ConvertibleToOutputCheck,
00112                    ( Concept::Convertible< typename TInputImage1::PixelType,
00113                                            typename TOutputImage::PixelType > ) );
00114   itkConceptMacro( Input2ConvertibleToOutputCheck,
00115                    ( Concept::Convertible< typename TInputImage2::PixelType,
00116                                            typename TOutputImage::PixelType > ) );
00117   itkConceptMacro( Input1GreaterThanInput2Check,
00118                    ( Concept::GreaterThanComparable< typename TInputImage1::PixelType,
00119                                                      typename TInputImage2::PixelType > ) );
00120 
00122 #endif
00123 protected:
00124   MaximumImageFilter() {}
00125   virtual ~MaximumImageFilter() {}
00126 private:
00127   MaximumImageFilter(const Self &); //purposely not implemented
00128   void operator=(const Self &);     //purposely not implemented
00129 };
00130 } // end namespace itk
00132 
00133 #endif
00134