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FIS.DetectEdges_AsPaths Method

Extracts subpixel-precise paths that represent continuous edges.

Namespace:FilNet
Assembly:FIL.NET.dll

Syntax

public static void DetectEdges_AsPaths
(
	FilNet.Image inImage,
	NullableRef<FilNet.Region> inRoi,
	FilNet.EdgeFilter inEdgeFilter,
	float inStdDevX,
	float? inStdDevY,
	float inEdgeThreshold,
	float inEdgeHysteresis,
	float? inMaxJoiningDistance,
	float inMaxJoiningAngle,
	float inJoiningDistanceBalance,
	float? inJoiningEndingLength,
	float inMinEdgeLength,
	IList<FilNet.Path> outEdges,
	FilNet.Image diagGradientMagnitudeImage,
	FilNet.Region diagEdgeRegion
)

Parameters

Name Type Range Default Description
inImageFilNet.ImageImage from which edges will be extracted.
inRoiFilNet.NullableRef<FilNet.Region>Region of the image from which edges will be extracted. Default value: ftl::NIL.
inEdgeFilterFilNet.EdgeFilterType of edge filter used for computing gradients.
inStdDevXfloat<0.0f, INF>2.0fAmount of horizontal smoothing used by the edge filter. Default value: 2.0f.
inStdDevYfloat?<0.0f, INF>Amount of vertical smoothing used by the edge filter (Auto = inStdDevX). Default value: ftl::NIL.
inEdgeThresholdfloat<0.0f, INF>15.0fSufficient edge strength; edges of that strength will always be detected. Default value: 15.0f.
inEdgeHysteresisfloat<0.0f, INF>5.0fValue by which the edge threshold is decreased for edge points neighboring with sufficiently strong edges. Default value: 5.0f.
inMaxJoiningDistancefloat?<0.0f, INF>Maximal distance between edges that can be joined. Default value: ftl::NIL.
inMaxJoiningAnglefloat<0.0f, 180.0f>30.0fMaximal allowed angle between edges being joined. Default value: 30.0f.
inJoiningDistanceBalancefloat<0.0f, 1.0f>0.0fDetermines how important distance between edges is according to their angle difference. Default value: 0.0f.
inJoiningEndingLengthfloat?<1.0f, INF>Determines the length of the edge end used for edge angle computing. Default value: ftl::NIL.
inMinEdgeLengthfloat<0.0f, INF>0.0fMinimal length of an edge. Default value: 0.0f.
outEdgesSystem.Collections.Generic.IList<FilNet.Path>Paths representing found edges.
diagGradientMagnitudeImageFilNet.ImageVisualization of the gradient magnitude.
diagEdgeRegionFilNet.RegionRegion representing found edges.

Function Overrides

See also