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AVL.DetectEdges(AvlNet.Image, AvlNet.Region, AvlNet.EdgeFilter, float, float?, float, float, float, int, AvlNet.Image, AvlNet.Image)

Extracts a pixel-precise image of continuous edges.

Namespace:AvlNet
Assembly:AVL.NET.dll

Syntax


public static void DetectEdges(
	AvlNet.Image inImage,
	AvlNet.Region inRoi,
	AvlNet.EdgeFilter inEdgeFilter,
	float inStdDevX,
	float? inStdDevY,
	float inEdgeThreshold,
	float inEdgeHysteresis,
	float inMaxJoiningDistance,
	int inMinBlobArea,
	out AvlNet.Image outEdgesImage,
	out AvlNet.Image diagGradientMagnitudeImage
)

Parameters

inImage
Type: AvlNet.Image
Image from which edges will be extracted
inRoi
Type: AvlNet.Region
Region of the image from which edges will be extracted, or null.
inEdgeFilter
Type: AvlNet.EdgeFilter
Type of edge filter used for computing gradients
inStdDevX
Type: System.Single
Amount of horizontal smoothing used by the edge filter
inStdDevY
Type: System.Nullable<System.Single>
Amount of vertical smoothing used by the edge filter (Auto = inStdDevX), or null.
inEdgeThreshold
Type: System.Single
Sufficient edge strength; edges of that strength will always be detected
inEdgeHysteresis
Type: System.Single
Value by which the edge threshold is decreased for edge points neighboring with sufficiently strong edges
inMaxJoiningDistance
Type: System.Single
Maximal distance between edges that can be joined
inMinBlobArea
Type: System.Int32
Minimal area of an edge blob
outEdgesImage
Type: AvlNet.Image
Image of found edges
diagGradientMagnitudeImage
Type: AvlNet.Image
Visualization of the gradient magnitude

Hardware Acceleration

This operation supports automatic parallelization for multicore and multiprocessor systems.

Hardware acceleration settings may be manipulated with Settings class.

See also