/usr/include/ITK-4.5/itkIsoDataThresholdCalculator.h is in libinsighttoolkit4-dev 4.5.0-3.
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*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef __itkIsoDataThresholdCalculator_h
#define __itkIsoDataThresholdCalculator_h
#include "itkHistogramThresholdCalculator.h"
namespace itk
{
/** \class IsoDataThresholdCalculator
* \brief Computes the IsoData threshold for an image. Aka intermeans
*
* Iterative procedure based on the isodata algorithm [T.W. Ridler, S. Calvard, Picture
* thresholding using an iterative selection method, IEEE Trans. System, Man and
* Cybernetics, SMC-8 (1978) 630-632.]
* The procedure divides the image into objects and background by taking an initial threshold,
* then the averages of the pixels at or below the threshold and pixels above are computed.
* The averages of those two values are computed, the threshold is incremented and the
* process is repeated until the threshold is larger than the composite average. That is,
* threshold = (average background + average objects)/2
*
* This class is templated over the input histogram type.
* \warning This calculator assumes that the input histogram has only one dimension.
*
* \author Richard Beare. Department of Medicine, Monash University,
* Melbourne, Australia.
* \author Gaetan Lehmann. Biologie du Developpement et de la Reproduction, INRA de Jouy-en-Josas, France.
*
* This implementation was taken from the Insight Journal paper:
* http://hdl.handle.net/10380/3279 or
* http://www.insight-journal.org/browse/publication/811
*
* \ingroup Operators
* \ingroup ITKThresholding
*/
template <typename THistogram, typename TOutput=double>
class IsoDataThresholdCalculator : public HistogramThresholdCalculator<THistogram, TOutput>
{
public:
/** Standard class typedefs. */
typedef IsoDataThresholdCalculator Self;
typedef Object Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(IsoDataThresholdCalculator, Object);
/** Type definition for the input image. */
typedef THistogram HistogramType;
typedef TOutput OutputType;
protected:
IsoDataThresholdCalculator() {}
virtual ~IsoDataThresholdCalculator() {}
void GenerateData(void);
typedef typename HistogramType::SizeValueType SizeValueType;
typedef typename HistogramType::InstanceIdentifier InstanceIdentifier;
private:
IsoDataThresholdCalculator(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkIsoDataThresholdCalculator.hxx"
#endif
#endif
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