ITK  4.1.0
Insight Segmentation and Registration Toolkit
itkOtsuMultipleThresholdsCalculator.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 __itkOtsuMultipleThresholdsCalculator_h
00019 #define __itkOtsuMultipleThresholdsCalculator_h
00020 
00021 #include "itkHistogramAlgorithmBase.h"
00022 #include "itkHistogram.h"
00023 
00024 namespace itk
00025 {
00040 template< class TInputHistogram >
00041 class ITK_EXPORT OtsuMultipleThresholdsCalculator:
00042   public HistogramAlgorithmBase< TInputHistogram >
00043 {
00044 public:
00046   typedef OtsuMultipleThresholdsCalculator          Self;
00047   typedef HistogramAlgorithmBase< TInputHistogram > Superclass;
00048   typedef SmartPointer< Self >                      Pointer;
00049   typedef SmartPointer< const Self >                ConstPointer;
00050 
00051   typedef typename TInputHistogram::MeasurementType       MeasurementType;
00052   typedef typename TInputHistogram::AbsoluteFrequencyType FrequencyType;
00053 
00054   typedef typename NumericTraits< MeasurementType >::RealType MeanType;
00055   typedef typename NumericTraits< MeasurementType >::RealType VarianceType;
00056 
00057   typedef std::vector< MeanType >      MeanVectorType;
00058   typedef std::vector< FrequencyType > FrequencyVectorType;
00059 
00060   typedef typename TInputHistogram::InstanceIdentifier InstanceIdentifierType;
00061   typedef std::vector< InstanceIdentifierType >        InstanceIdentifierVectorType;
00062 
00064   itkTypeMacro(OtsuMultipleThresholdsCalculator, HistogramAlgorithmsBase);
00065   itkNewMacro(Self);
00067 
00069   typedef std::vector< MeasurementType > OutputType;
00070 
00072   const OutputType & GetOutput();
00073 
00075   itkSetClampMacro( NumberOfThresholds, SizeValueType, 1, NumericTraits< SizeValueType >::max() );
00076   itkGetConstMacro(NumberOfThresholds, SizeValueType);
00077 protected:
00078   OtsuMultipleThresholdsCalculator();
00079   virtual ~OtsuMultipleThresholdsCalculator() {}
00080   void PrintSelf(std::ostream & os, Indent indent) const;
00082 
00084   void GenerateData();
00085 
00087   bool IncrementThresholds(InstanceIdentifierVectorType & thresholdIds,
00088                            MeanType totalMean,
00089                            MeanVectorType & classMean,
00090                            FrequencyVectorType & classFrequency);
00091 
00092 private:
00094   SizeValueType m_NumberOfThresholds;
00095   OutputType    m_Output;
00096 }; // end of class
00097 } // end of namespace itk
00098 
00099 #ifndef ITK_MANUAL_INSTANTIATION
00100 #include "itkOtsuMultipleThresholdsCalculator.hxx"
00101 #endif
00102 
00103 #endif
00104