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AVS.FitCircleToEdges_Direct Method

Performs a series of 1D edge detections and finds a circle that best matches the detected points.

Namespace:AvlNet
Assembly:AVL.NET.dll

Syntax

public static void FitCircleToEdges_Direct
(
	AvlNet.Image inImage,
	AvlNet.CircleFittingField inFittingField,
	AvlNet.CoordinateSystem2D? inFittingFieldAlignment,
	int inScanCount,
	int inScanWidth,
	AvlNet.SamplingParams inSamplingParams,
	AvlNet.EdgeScanParams inEdgeScanParams,
	AvlNet.Selection inEdgeSelection,
	AvlNet.LocalBlindness? inLocalBlindness,
	float inMaxIncompleteness,
	AvlNet.CircleFittingMethod inFittingMethod,
	AvlNet.MEstimator? inOutlierSuppression,
	out AvlNet.Circle2D? outCircle,
	NullableRef<List<AvlNet.Edge1D?>> outEdges,
	NullableRef<NullableRef<AvlNet.Profile>> outDeviationProfile,
	NullableValue<AvlNet.CircleFittingField> outAlignedFittingField,
	NullableRef<List<AvlNet.Point2D>> outInliers,
	NullableRef<SafeList<AvlNet.Profile>> outBrightnessProfiles,
	NullableRef<SafeList<AvlNet.Profile>> outResponseProfiles
)

Parameters

Name Type Range Default Description
inImageAvlNet.ImageImage to fit the circle to.
inFittingFieldAvlNet.CircleFittingFieldCircle fitting field.
inFittingFieldAlignmentAvlNet.CoordinateSystem2D?Adjusts the fitting field to the position of the inspected object. Default value: atl::NIL.
inScanCountint<3, INF>10The number of points that will be searched to estimate the position of the circle. Default value: 10.
inScanWidthint<1, INF>5The width of each scan field (in pixels). Default value: 5.
inSamplingParamsAvlNet.SamplingParamsParameters controlling the sampling process.
inEdgeScanParamsAvlNet.EdgeScanParamsEdgeScanParams ( ProfileInterpolation: Quadratic4 SmoothingStdDev: 1.0f MinMagnitude: 5.0f EdgeTransition: BrightToDark )Parameters controlling the edge extraction process. Default value: EdgeScanParams ( ProfileInterpolation: Quadratic4 SmoothingStdDev: 1.0f MinMagnitude: 5.0f EdgeTransition: BrightToDark ).
inEdgeSelectionAvlNet.SelectionSelection mode of edges.
inLocalBlindnessAvlNet.LocalBlindness?Defines conditions in which weaker edges can be detected in the vicinity of stronger edges. Default value: atl::NIL.
inMaxIncompletenessfloat<0.0f, 0.999f>0.1fMaximal fraction of edge points not found. Default value: 0.1f.
inFittingMethodAvlNet.CircleFittingMethodAlgebraicTaubinMethod used to fit a circle. Default value: AlgebraicTaubin.
inOutlierSuppressionAvlNet.MEstimator?Selects a method for ignoring incorrectly detected points. Default value: atl::NIL.
outCircleAvlNet.Circle2D?Fitted circle or nothing if the fitting fails.
outEdgesAvlNet.NullableRef<System.Collections.Generic.List<AvlNet.Edge1D?>>Found edges. Can be null to skip this parameter calculation.
outDeviationProfileAvlNet.NullableRef<AvlNet.NullableRef<AvlNet.Profile>>Profile of distances between the actual circle points and the corresponding reference circle points. Can be null to skip this parameter calculation.
outAlignedFittingFieldAvlNet.NullableValue<AvlNet.CircleFittingField>Fitting field used; in the image coordinate system. Can be null to skip this parameter calculation.
outInliersAvlNet.NullableRef<System.Collections.Generic.List<AvlNet.Point2D>>Points matching the fitting Circle. Can be null to skip this parameter calculation.
outBrightnessProfilesAvlNet.NullableRef<AvlNet.SafeList<AvlNet.Profile>>Extracted image profiles. Can be null to skip this parameter calculation.
outResponseProfilesAvlNet.NullableRef<AvlNet.SafeList<AvlNet.Profile>>Profiles of the edge (derivative) operator response. Can be null to skip this parameter calculation.

Function Overrides

See also