ITK  4.1.0
Insight Segmentation and Registration Toolkit
itkMaskNegatedImageFilter.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 __itkMaskNegatedImageFilter_h
00019 #define __itkMaskNegatedImageFilter_h
00020 
00021 #include "itkBinaryFunctorImageFilter.h"
00022 #include "itkNumericTraits.h"
00023 
00024 namespace itk
00025 {
00026 namespace Functor
00027 {
00033 template< class TInput, class TMask, class TOutput = TInput >
00034 class MaskNegatedInput
00035 {
00036 public:
00037   typedef typename NumericTraits< TInput >::AccumulateType AccumulatorType;
00038 
00039   MaskNegatedInput():m_OutsideValue(NumericTraits< TOutput >::Zero) {}
00040   ~MaskNegatedInput() {}
00041   bool operator!=(const MaskNegatedInput &) const
00042   {
00043     return false;
00044   }
00045 
00046   bool operator==(const MaskNegatedInput & other) const
00047   {
00048     return !( *this != other );
00049   }
00050 
00051   inline TOutput operator()(const TInput & A, const TMask & B) const
00052   {
00053     if ( B != NumericTraits< TMask >::ZeroValue() )
00054       {
00055       return m_OutsideValue;
00056       }
00057     else
00058       {
00059       return static_cast< TOutput >( A );
00060       }
00061   }
00062 
00064   void SetOutsideValue(const TOutput & outsideValue)
00065   {
00066     m_OutsideValue = outsideValue;
00067   }
00068 
00070   const TOutput & GetOutsideValue() const
00071   {
00072     return m_OutsideValue;
00073   }
00074 
00075 private:
00076   TOutput m_OutsideValue;
00077 };
00078 }
00112 template< class TInputImage, class TMaskImage, class TOutputImage = TInputImage >
00113 class ITK_EXPORT MaskNegatedImageFilter:
00114   public
00115   BinaryFunctorImageFilter< TInputImage, TMaskImage, TOutputImage,
00116                             Functor::MaskNegatedInput<
00117                               typename TInputImage::PixelType,
00118                               typename TMaskImage::PixelType,
00119                               typename TOutputImage::PixelType >   >
00120 
00121 {
00122 public:
00124   typedef MaskNegatedImageFilter Self;
00125   typedef BinaryFunctorImageFilter< TInputImage, TMaskImage, TOutputImage,
00126                                     Functor::MaskNegatedInput<
00127                                       typename TInputImage::PixelType,
00128                                       typename TMaskImage::PixelType,
00129                                       typename TOutputImage::PixelType >
00130                                     >                                 Superclass;
00131 
00132   typedef SmartPointer< Self >       Pointer;
00133   typedef SmartPointer< const Self > ConstPointer;
00134 
00136   itkNewMacro(Self);
00137 
00139   itkTypeMacro(MaskNegatedImageFilter,
00140                BinaryFunctorImageFilter);
00141 
00143   typedef TMaskImage MaskImageType;
00144 
00146   void SetOutsideValue(const typename TOutputImage::PixelType & outsideValue)
00147   {
00148     if ( this->GetOutsideValue() != outsideValue )
00149       {
00150       this->Modified();
00151       this->GetFunctor().SetOutsideValue(outsideValue);
00152       }
00153   }
00155 
00156   const typename TOutputImage::PixelType & GetOutsideValue() const
00157   {
00158     return this->GetFunctor().GetOutsideValue();
00159   }
00160 
00165   void SetMaskImage(const MaskImageType *maskImage)
00166   {
00167     // Process object is not const-correct so the const casting is required.
00168     this->SetNthInput( 1, const_cast< MaskImageType * >( maskImage ) );
00169   }
00170 
00171   const MaskImageType * GetMaskImage()
00172   {
00173     return static_cast<const MaskImageType*>(this->ProcessObject::GetInput(1));
00174   }
00175 
00176 #ifdef ITK_USE_CONCEPT_CHECKING
00177 
00178   itkConceptMacro( MaskEqualityComparableCheck,
00179                    ( Concept::EqualityComparable< typename TMaskImage::PixelType > ) );
00180   itkConceptMacro( InputConvertibleToOutputCheck,
00181                    ( Concept::Convertible< typename TInputImage::PixelType,
00182                                            typename TOutputImage::PixelType > ) );
00183 
00185 #endif
00186 protected:
00187   MaskNegatedImageFilter() {}
00188   virtual ~MaskNegatedImageFilter() {}
00190 
00191   void PrintSelf(std::ostream & os, Indent indent) const
00192   {
00193     Superclass::PrintSelf(os, indent);
00194     os << indent << "OutsideValue: "  << this->GetOutsideValue() << std::endl;
00195   }
00196 
00197 private:
00198   MaskNegatedImageFilter(const Self &); //purposely not implemented
00199   void operator=(const Self &);         //purposely not implemented
00200 };
00201 } // end namespace itk
00202 
00203 #endif
00204