CogBeadInspectDefect.CoverageMax Property

CogBeadInspectDefect CoverageMax Property

Cognex VisionPro 9.8 SR1

Get the maximum coverage ratio measured by the calipers of this defect.

Namespace: Cognex.VisionPro.EdgeInspect
Assembly: Cognex.VisionPro.EdgeInspect (in Cognex.VisionPro.EdgeInspect.dll) Version: 75.0.0.0

Syntax

C++

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public double CoverageMax { get; }

public double CoverageMax { get; }

Public ReadOnly Property CoverageMax As Double 
	Get

Public ReadOnly Property CoverageMax As Double 
	Get

public:
property double CoverageMax {
	double get ();
}

public:
property double CoverageMax {
	double get ();
}

Property Value

Type: Double
The largest measured coverage ratio. A value of 1.5 implies that every caliper in the defect has a runtime coverage less than or equal to 150% of the coverage measured at train-time.

Remarks

The bead coverage is a ratio of the number of bead pixels found at runtime to the average number of bead pixels found at train time. A "bead pixel" is any pixel between the two bead edges that has the same polarity (dark or light) as the bead itself. Often, all of the pixels between the two bead edges are bead pixels, but there can sometimes be holes in the bead.

The average number of bead pixels is computed at train time for each caliper. This value is computed by averaging the number of bead pixels from neighboring calipers. The number of calipers to average is specified by the SmoothingFactor train property.

If the user disables both CoverageMinEnabled and CoverageMaxEnabled, the bead coverage will not be measured at run-time and GetCaliperBeadCoverage(Int32), CoverageMin, CoverageMax, and CoverageAvg will all be reported as zero.