DirectGraphicalModels::CGraphExt Class Reference

General graph extension abstract class for 2D image classifaction. More...

#include <GraphExt.h>

Inheritance diagram for DirectGraphicalModels::CGraphExt:

Public Member Functions
	CGraphExt (void)=default
	CGraphExt (const CGraphExt &)=delete
virtual	~CGraphExt (void)=default
const CGraphExt &	operator= (const CGraphExt &)=delete
virtual void	buildGraph (Size graphSize)=0
	Builds a 2D graph of size corresponding to the image resolution. More...
virtual void	setGraph (const Mat &pots)=0
	Fills an existing 2D graph with potentials or builds a new 2D graph of size corresponding to pots.size() with potentials. More...
virtual void	addDefaultEdgesModel (float val, float weight=1.0f)=0
	Adds default data-independet edge model. More...
virtual void	addDefaultEdgesModel (const Mat &featureVectors, float val, float weight=1.0f)=0
	Adds default contrast-sensitive edge model. More...
virtual void	addDefaultEdgesModel (const vec_mat_t &featureVectors, float val, float weight=1.0f)=0
	Adds default contrast-sensitive edge model. More...
virtual Size	getSize () const =0
	Returns the size of the graph. More...

Detailed Description

General graph extension abstract class for 2D image classifaction.

This class provides wrapper functions for simplifying operations with graphs, when they are used for 2D image classification

Author

Sergey G. Kosov, serge.nosp@m.y.ko.nosp@m.sov@p.nosp@m.roje.nosp@m.ct-10.nosp@m..de

Definition at line 16 of file GraphExt.h.

Constructor & Destructor Documentation

CGraphExt() [1/2]

DirectGraphicalModels::CGraphExt::CGraphExt ( void  )

default

CGraphExt() [2/2]

DirectGraphicalModels::CGraphExt::CGraphExt ( const CGraphExt &  )

delete

~CGraphExt()

virtual DirectGraphicalModels::CGraphExt::~CGraphExt ( void  )

virtualdefault

Member Function Documentation

addDefaultEdgesModel() [1/3]

virtual void DirectGraphicalModels::CGraphExt::addDefaultEdgesModel ( float  val, float  weight = 1.0f  )

pure virtual

Adds default data-independet edge model.

Parameters

val	Value, specifying the smoothness strength See concrete class implementation for more details
weight	The weighting parameter

Implemented in DirectGraphicalModels::CGraphLayeredExt, DirectGraphicalModels::CGraphPairwiseExt, and DirectGraphicalModels::CGraphDenseExt.

addDefaultEdgesModel() [2/3]

virtual void DirectGraphicalModels::CGraphExt::addDefaultEdgesModel ( const Mat &  featureVectors, float  val, float  weight = 1.0f  )

pure virtual

Adds default contrast-sensitive edge model.

Parameters

featureVectors	Multi-channel matrix, each element of which is a multi-dimensinal point: Mat(type: CV_8UC<nFeatures>)
val	Value, specifying the smoothness strength See concrete class implementation for more details
weight	The weighting parameter

Implemented in DirectGraphicalModels::CGraphLayeredExt, DirectGraphicalModels::CGraphPairwiseExt, and DirectGraphicalModels::CGraphDenseExt.

addDefaultEdgesModel() [3/3]

virtual void DirectGraphicalModels::CGraphExt::addDefaultEdgesModel ( const vec_mat_t &  featureVectors, float  val, float  weight = 1.0f  )

pure virtual

Adds default contrast-sensitive edge model.

Parameters

featureVectors	Vector of size nFeatures, each element of which is a single feature - image: Mat(type: CV_8UC1)
val	Value, specifying the smoothness strength See concrete class implementation for more details
weight	The weighting parameter

Implemented in DirectGraphicalModels::CGraphLayeredExt, DirectGraphicalModels::CGraphPairwiseExt, and DirectGraphicalModels::CGraphDenseExt.

buildGraph()

virtual void DirectGraphicalModels::CGraphExt::buildGraph ( Size  graphSize )

pure virtual

Builds a 2D graph of size corresponding to the image resolution.

When called multiple times, previouse graph structure is always replaced

Parameters

graphSize

The size of the graph (image resolution)

Implemented in DirectGraphicalModels::CGraphLayeredExt, DirectGraphicalModels::CGraphPairwiseExt, and DirectGraphicalModels::CGraphDenseExt.

getSize()

virtual Size DirectGraphicalModels::CGraphExt::getSize ( ) const

pure virtual

Returns the size of the graph.

Returns

The size of the Graph

Implemented in DirectGraphicalModels::CGraphLayeredExt, DirectGraphicalModels::CGraphDenseExt, and DirectGraphicalModels::CGraphPairwiseExt.

operator=()

const CGraphExt& DirectGraphicalModels::CGraphExt::operator= ( const CGraphExt &  )

delete

setGraph()

virtual void DirectGraphicalModels::CGraphExt::setGraph ( const Mat &  pots )

pure virtual

Fills an existing 2D graph with potentials or builds a new 2D graph of size corresponding to pots.size() with potentials.

If the graph was not build beforehand, or the size of existing graph does not correspond to pots.size() this function calls first

buildGraph(pots.size())

Parameters

pots	A block of node potentials: Mat(size: image width x image height; type: CV_32FC(nStates)). It may be obtained by: CTrainNode::getNodePotentials()

Implemented in DirectGraphicalModels::CGraphLayeredExt, DirectGraphicalModels::CGraphPairwiseExt, and DirectGraphicalModels::CGraphDenseExt.

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The documentation for this class was generated from the following file:

• D:/Projects/DGM/modules/DGM/GraphExt.h