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AVL.ScanSingleStripe

Locates the strongest pair of edges across a given path.

Namespace:AvlNet
Assembly:AVL.NET.dll

Syntax

C++
C#
 
public static void ScanSingleStripe
(
	AvlNet.Image inImage,
	AvlNet.ScanMap inScanMap,
	AvlNet.StripeScanParams inStripeScanParams,
	AvlNet.Selection inStripeSelection,
	AvlNet.LocalBlindness? inLocalBlindness,
	INullable<AvlNet.Stripe1D> outStripe,
	AvlNet.Profile outBrightnessProfile,
	AvlNet.Profile outResponseProfile
)

Parameters

Name Type Range Default Description
inImageAvlNet.ImageInput image.
inScanMapAvlNet.ScanMapData precomputed with CreateScanMap.
inStripeScanParamsAvlNet.StripeScanParamsStripeScanParams ( ProfileInterpolation: Quadratic4 SmoothingStdDev: 0.6f MinMagnitude: 5.0f MaxInnerEdgeMagnitude: Nil StripePolarity: Dark MinStripeWidth: 0.0f MaxStripeWidth: Nil )Parameters controlling the stripe extraction process. Default value: StripeScanParams ( ProfileInterpolation: Quadratic4 SmoothingStdDev: 0.6f MinMagnitude: 5.0f MaxInnerEdgeMagnitude: Nil StripePolarity: Dark MinStripeWidth: 0.0f MaxStripeWidth: Nil ).
inStripeSelectionAvlNet.Selectionavl::Selection::BestSelection mode of the resulting stripe. Default value: avl::Selection::Best.
inLocalBlindnessAvlNet.LocalBlindness?Defines conditions in which weaker edges can be detected in the vicinity of stronger edges. Default value: atl::NIL.
outStripeAvlNet.INullable<AvlNet.Stripe1D>Found stripe. This parameter cannot be null.
outBrightnessProfileAvlNet.ProfileExtracted image profile.
outResponseProfileAvlNet.ProfileProfile of the edge (derivative) operator response.

Description

The operation scans the image using inScanMap previously generated from a scan path and locates the strongest stripe (i.e. a pair of opposite-polarity edges running across the path) of the given characteristics. If there is no such stripe then the outputs are set to NIL.

Examples

ScanSingleStripe locates the strongest stripe using a scan map representing the scan path above.

Remarks

Read more about Local Coordinate Systems in Machine Vision Guide: Local Coordinate Systems.

This filter is a part of the 1D Edge Detection toolset. For a comprehensive introduction to this technique please refer to 1D Edge Detection and 1D Edge Detection - Subpixel Precision chapters of our Machine Vision Guide.

Function Overrides

See also