/usr/include/ITK-4.5/itkLayerBase.h is in libinsighttoolkit4-dev 4.5.0-3.
This file is owned by root:root, with mode 0o644.
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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 __itkLayerBase_h
#define __itkLayerBase_h
#include <iostream>
#include "itkTransferFunctionBase.h"
#include "itkInputFunctionBase.h"
#include "itkWeightSetBase.h"
namespace itk
{
namespace Statistics
{
/** \class LayerBase
* \brief This is the itkLayerBase class.
*
* \ingroup ITKNeuralNetworks
*/
template<typename TMeasurementVector, typename TTargetVector>
class LayerBase : public LightProcessObject
{
public:
typedef LayerBase Self;
typedef LightProcessObject Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Method for creation through the object factory. */
itkTypeMacro(LayerBase, LightProcessObject);
typedef TMeasurementVector InputVectorType;
typedef TTargetVector OutputVectorType;
typedef typename TMeasurementVector::ValueType ValueType;
typedef ValueType* ValuePointer;
typedef const ValueType* ValueConstPointer;
typedef vnl_vector<ValueType> NodeVectorType;
typedef Array<ValueType> InternalVectorType;
typedef LayerBase LayerInterfaceType;
typedef WeightSetBase<TMeasurementVector,TTargetVector> WeightSetType;
typedef WeightSetBase<TMeasurementVector,TTargetVector> WeightSetInterfaceType;
typedef InputFunctionBase<ValueType*, ValueType> InputFunctionInterfaceType;
typedef TransferFunctionBase<ValueType> TransferFunctionInterfaceType;
//The only valid layer types
typedef enum { INVALIDLAYER=0, INPUTLAYER=1, HIDDENLAYER=2, OUTPUTLAYER=3 } LayerTypeCode;
virtual void SetNumberOfNodes(unsigned int);
unsigned int GetNumberOfNodes() const;
virtual ValueType GetInputValue(unsigned int) const = 0;
virtual ValueType GetOutputValue(unsigned int) const = 0;
virtual ValuePointer GetOutputVector() = 0;
virtual void ForwardPropagate(){};
virtual void ForwardPropagate(TMeasurementVector){};
virtual void BackwardPropagate(){};
virtual void BackwardPropagate(InternalVectorType){};
virtual ValueType GetOutputErrorValue(unsigned int) const = 0;
virtual void SetOutputErrorValues(TTargetVector) {};
virtual ValueType GetInputErrorValue(unsigned int) const = 0;
virtual ValuePointer GetInputErrorVector() = 0;
virtual void SetInputErrorValue(ValueType, unsigned int) {};
//itkSetObjectMacro(InputWeightSet, WeightSetInterfaceType);
void SetInputWeightSet(WeightSetInterfaceType*);
itkGetModifiableObjectMacro(InputWeightSet, WeightSetInterfaceType);
//itkSetObjectMacro(OutputWeightSet, WeightSetInterfaceType);
void SetOutputWeightSet(WeightSetInterfaceType*);
itkGetModifiableObjectMacro(OutputWeightSet, WeightSetInterfaceType);
void SetNodeInputFunction(InputFunctionInterfaceType* f);
itkGetModifiableObjectMacro(NodeInputFunction, InputFunctionInterfaceType);
void SetTransferFunction(TransferFunctionInterfaceType* f);
itkGetModifiableObjectMacro(ActivationFunction, TransferFunctionInterfaceType);
virtual ValueType Activation(ValueType) = 0;
virtual ValueType DActivation(ValueType) = 0;
itkSetEnumMacro(LayerTypeCode, LayerTypeCode);
itkGetEnumMacro(LayerTypeCode, LayerTypeCode);
//#define __USE_OLD_INTERFACE Comment out to ensure that new interface works
#ifdef __USE_OLD_INTERFACE
void SetLayerType(const LayerTypeCode value) { SetLayerTypeCode(value); }
LayerTypeCode GetLayerType(void) { return GetLayerTypeCode(); }
//For backwards compatibility
void SetLayerType(const unsigned int value)
{
switch(value)
{
case 0:
SetLayerType(INVALIDLAYER);
break;
case 1:
SetLayerType(INPUTLAYER);
break;
case 2:
SetLayerType(HIDDENLAYER);
break;
case 3:
SetLayerType(OUTPUTLAYER);
break;
default:
//Throw Exception Here
break;
}
}
#endif
itkSetMacro(LayerId,unsigned int);
itkGetConstReferenceMacro(LayerId,unsigned int);
//virtual void SetBias(const ValueType) = 0;
//virtual const ValueType & GetBias() const = 0;
protected:
LayerBase();
~LayerBase();
/** Method to print the object. */
virtual void PrintSelf( std::ostream& os, Indent indent ) const;
LayerTypeCode m_LayerTypeCode; //input, hidden, output
unsigned int m_LayerId;
unsigned int m_NumberOfNodes;
typename WeightSetInterfaceType::Pointer m_InputWeightSet;
typename WeightSetInterfaceType::Pointer m_OutputWeightSet;
typename TransferFunctionInterfaceType::Pointer m_ActivationFunction;
typename InputFunctionInterfaceType::Pointer m_NodeInputFunction;
}; //class layer base
} //namespace itk
} //namespace statistics
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkLayerBase.hxx"
#endif
#endif
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