ITK  4.1.0
Insight Segmentation and Registration Toolkit
itkMutualInformationHistogramImageToImageMetric.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 __itkMutualInformationHistogramImageToImageMetric_h
00019 #define __itkMutualInformationHistogramImageToImageMetric_h
00020 
00021 #include "itkHistogramImageToImageMetric.h"
00022 
00023 namespace itk
00024 {
00037 template< class TFixedImage, class TMovingImage >
00038 class ITK_EXPORT MutualInformationHistogramImageToImageMetric:
00039   public HistogramImageToImageMetric< TFixedImage, TMovingImage >
00040 {
00041 public:
00043   typedef MutualInformationHistogramImageToImageMetric             Self;
00044   typedef HistogramImageToImageMetric< TFixedImage, TMovingImage > Superclass;
00045   typedef SmartPointer< Self >                                     Pointer;
00046   typedef SmartPointer< const Self >                               ConstPointer;
00047 
00049   itkNewMacro(Self);
00050 
00052   itkTypeMacro(MutualInformationHistogramImageToImageMetric,
00053                HistogramImageToImageMetric);
00054 
00056   typedef typename Superclass::RealType                RealType;
00057   typedef typename Superclass::TransformType           TransformType;
00058   typedef typename Superclass::TransformPointer        TransformPointer;
00059   typedef typename Superclass::TransformParametersType TransformParametersType;
00060   typedef typename Superclass::TransformJacobianType   TransformJacobianType;
00061   typedef typename Superclass::GradientPixelType       GradientPixelType;
00062 
00063   typedef typename Superclass::MeasureType             MeasureType;
00064   typedef typename Superclass::DerivativeType          DerivativeType;
00065   typedef typename Superclass::FixedImageType          FixedImageType;
00066   typedef typename Superclass::MovingImageType         MovingImageType;
00067   typedef typename Superclass::FixedImageConstPointer  FixedImageConstPointer;
00068   typedef typename Superclass::MovingImageConstPointer MovingImageConstPointer;
00069 
00070   typedef typename Superclass::HistogramType            HistogramType;
00071   typedef typename HistogramType::AbsoluteFrequencyType HistogramFrequencyType;
00072   typedef typename HistogramType::Iterator              HistogramIteratorType;
00073   typedef typename HistogramType::MeasurementVectorType HistogramMeasurementVectorType;
00074 protected:
00077   MutualInformationHistogramImageToImageMetric(){}
00078   virtual ~MutualInformationHistogramImageToImageMetric(){}
00080 
00082   virtual MeasureType EvaluateMeasure(HistogramType & histogram) const;
00083 
00084 private:
00085   // Purposely not implemented.
00086   MutualInformationHistogramImageToImageMetric(Self const &);
00087   void operator=(Self const &); // Purposely not implemented.
00088 };
00089 } // End namespace itk.
00090 
00091 #ifndef ITK_MANUAL_INSTANTIATION
00092 #include "itkMutualInformationHistogramImageToImageMetric.hxx"
00093 #endif
00094 
00095 #endif // __itkMutualInformationHistogramImageToImageMetric_h
00096