ipsdk::imaproc::shape::analysis::HuMoments2dMsrInfo Class Reference

Information object for measure HuMoments2d. More...

#include <HuMoments2dMsrInfo.h>

Inheritance diagram for ipsdk::imaproc::shape::analysis::HuMoments2dMsrInfo:

Public Types
typedef HuMoments2dMsrResults	MsrResultType
typedef HuMoments2dMsrParams	MsrParamsType
	Parameter type associated to measure.
typedef const HuMoments2dMsrParams	MsrParamsConstType
	Parameter const type associated to measure.
typedef boost::shared_ptr< MsrParamsType >	MsrParamsStorageType
	Shared pointer to parameter type associated to measure.
typedef boost::shared_ptr< MsrParamsConstType >	MsrParamsConstStorageType
	Shared pointer to const parameter type associated to measure.

Public Member Functions
	~HuMoments2dMsrInfo ()
	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
	HuMoments2dMsrInfo ()
	constructor

Protected Attributes
MsrParamsConstStorageType	_pMsrParams
	Derived parameter associated to measure.

Detailed Description

Information object for measure HuMoments2d.

Author

R. Abbal

Date

2017/05/31

Copyright

2017 Reactiv'IP, all right reserved.

Hu Moments of order up to 3 measurement of a shape

Measure synthesis :

Measure Type	Measure Unit Type	Parameter Type	Result Type	Shape Requirements
Geometry 2d	None	HuMoments2dMsrParams	Custom	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 HuMoments2d is not associated to any unit [ipsdk::shape::analysis::eMsrUnitFormat::eMUF_NoUnit]

Measure Parameter Type :

Measure HuMoments2d is associated to HuMoments2dMsrParams parameters

Measure Result Type :

Measure HuMoments2d is associated to HuMoments2dMsrResults results

Measure Shape Requirements :

Measure HuMoments2d requires boundary approximation from shape data

Measure Dependencies :

Measure HuMoments2d 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, "HuMoments2dMsr")
    
    #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("HuMoments2dMsr")
    
    # retrieve measure values
    outMsrValues = outMsr.getMeasureResult().getColl(0)
    print("First label i1 Hu moment measurement equal " + str(outMsrValues[1].i1()))

Example of C++ code :

Example informations

Associated library

IPSDKIPLShapeAnalysis

Code Example

    // opening grey level input image
    ImagePtr pInGreyImg2d = loadTiffImageFile(inputGreyImgPath);

    // read entity shape 2d collection used for processing
    Shape2dCollPtr pShape2dColl = boost::make_shared<Shape2dColl>();
    IPSDK_REQUIRE(readFromXmlFile(inputShape2dCollPath, *pShape2dColl) == true);

    // define a measure info set
    MeasureInfoSetPtr pMeasureInfoSet = MeasureInfoSet::create2dInstance();
    createMeasureInfo(pMeasureInfoSet, "HuMoments2dMsr", createHolesBasicPolicyMsrParams(bProcessHoles));
    
    // compute measure on shape 2d collection
    MeasureSetPtr pOutMeasureSet = shapeAnalysis2d(pInGreyImg2d, pShape2dColl, pMeasureInfoSet);

    // retrieve associated results
    const MeasureConstPtr& pHuMoments2dOutMsr = pOutMeasureSet->getMeasure("HuMoments2dMsr");
    const HuMoments2dMsrResults& outResults = static_cast<const HuMoments2dMsrResults&>(pHuMoments2dOutMsr->getMeasureResult());

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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/Inertia/HuMoments2d/HuMoments2dMsrInfo.h