ipsdk::imaproc::shape::analysis::NbConnectedComponents2dMsrInfo Class Reference

Information object for measure NbConnectedComponents2d. More...

#include <NbConnectedComponents2dMsrInfo.h>

Inheritance diagram for ipsdk::imaproc::shape::analysis::NbConnectedComponents2dMsrInfo:

Public Types
typedef ipsdk::shape::analysis::ValueMeasureResult< ipsdk::ipUInt64 >	MsrResultType

Public Member Functions
	~NbConnectedComponents2dMsrInfo ()
	destructor
const std::string &	getObjectName () const
	method allowing to retrieve object name
const std::string &	getToolTip () const
	method allowing to retrieve object tooltip
const std::string &	getDefaultName () const
ipsdk::shapeanalysis::eMsrProcessingPolicy	getMsrProcessingPolicy () const

Static Public Member Functions
static const std::string &	getObjectNameStr ()
	method allowing to retrieve object name
static const std::string &	getToolTipStr ()
	method allowing to retrieve object tooltip

Static Public Attributes
static const ipsdk::shapeanalysis::eMsrProcessingPolicy::domain	g_msrProcessingPolicy = ipsdk::shapeanalysis::eMsrProcessingPolicy::eMPP_Geometry2d

Protected Member Functions
	NbConnectedComponents2dMsrInfo ()
	constructor

Detailed Description

Information object for measure NbConnectedComponents2d.

Author

R. Abbal

Date

2021/12/03

Copyright

2021 Reactiv'IP, all right reserved.

Returns the number of connected components associated to each 2d shape

Measure synthesis :

Measure Type	Measure Unit Type	Parameter Type	Result Type	Shape Requirements
Geometry 2d	None	None	Value (ipsdk::ipUInt64)	Boundary Approximation

See Shape measurement for additional information on these pictograms

Measure Type :

This is a geometry 2d measure

• it use shape 2d data to compute a result
• it optionally can use dependencies to other measures to compute a result (see Measure Dependencies section)

This measure can only be used in 2d case

Measure Unit Type:

Measure NbConnectedComponents2d is not associated to any unit [ipsdk::shape::analysis::eMsrUnitFormat::eMUF_NoUnit]

Measure Parameter Type :

Measure NbConnectedComponents2d has no parameters

Measure Result Type :

Measure NbConnectedComponents2d is associated to ipsdk::shape::analysis::ValueMeasureResult<ipsdk::ipUInt64> results

Measure Shape Requirements :

Measure NbConnectedComponents2d requires boundary approximation from shape data

Measure Dependencies :

Measure NbConnectedComponents2d has no dependency

Note

See Shape Analysis 2d for more information on general shape 2d analysis and measurement usage.

Example of Python code :

Generic example in 2d case :

import PyIPSDK
import PyIPSDK.IPSDKIPLShapeAnalysis as shapeanalysis

    # Create the infoset
    inMeasureInfoSet2d = PyIPSDK.createMeasureInfoSet2d()
    PyIPSDK.createMeasureInfo(inMeasureInfoSet2d, "NbConnectedComponents2dMsr")
    
    #Perform the analysis
    outMeasureSet = shapeanalysis.labelAnalysis2d(inGreyImg, inLabelImg2d, inMeasureInfoSet2d)
    
    # save results to csv format
    PyIPSDK.saveCsvMeasureFile(os.path.join(tmpPath,  "shape_analysis_results.csv"), outMeasureSet)
    
    # retrieve measure results
    outMsr = outMeasureSet.getMeasure("NbConnectedComponents2dMsr")
    
    # retrieve measure values
    outMsrValues = outMsr.getMeasureResult().getColl(0)
    print("First label measurement equal " + str(outMsrValues[1]))

Example of C++ code :

Example informations

Associated library

IPSDKIPLShapeAnalysis

Code Example

    // opening label input image
    ImagePtr pInLabelImg2d = loadTiffImageFile(inputLabelImgPath);

    // define a measure info set
    MeasureInfoSetPtr pMeasureInfoSet = MeasureInfoSet::create2dInstance();
    createMeasureInfo(pMeasureInfoSet, "NbConnectedComponents2dMsr");
    
    // compute measure on shape 2d collection
    MeasureSetPtr pOutMeasureSet = labelAnalysis2d(pInLabelImg2d, pInLabelImg2d, pMeasureInfoSet);

    // retrieve associated results
    const MeasureConstPtr& pNbConnectedComponents2dOutMsr = pOutMeasureSet->getMeasure("NbConnectedComponents2dMsr");
    const ipsdk::shape::analysis::ValueMeasureResult<ipsdk::ipUInt64>& outResults = static_cast<const ipsdk::shape::analysis::ValueMeasureResult<ipsdk::ipUInt64>&>(pNbConnectedComponents2dOutMsr->getMeasureResult());

---

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

• /media/reactivipdev/Nightly/IPSDK_Patch/IPSDK_4_1/IPSDK_Nightly/include/public/IPSDKIPL/IPSDKIPLShapeAnalysis/Measure/Geometry/Basic/NbConnectedComponents2d/NbConnectedComponents2dMsrInfo.h