You are here: Start » AVL.NET » AVS.CheckPresence_EdgeAmount Method

AVS.CheckPresence_EdgeAmount Method

Verifies object presence by analysing the amount of edges in the specified region.

Namespace:AvlNet
Assembly:AVL.NET.dll

Syntax

public static void CheckPresence_EdgeAmount
(
	AvlNet.Image inImage,
	AvlNet.ShapeRegion inRoi,
	AvlNet.CoordinateSystem2D? inRoiAlignment,
	AvlNet.GradientMaskOperator inEdgeOperator,
	AvlNet.MagnitudeMeasure inEdgeMeasure,
	int inEdgeScale,
	int inMinStrength,
	float inMinAmount,
	float inMaxAmount,
	out bool outIsPresent
)

Parameters

Name Type Range Default Description
inImageAvlNet.ImageInput image.
inRoiAvlNet.ShapeRegionLocation at which object presence is being checked.
inRoiAlignmentAvlNet.CoordinateSystem2D?Adjusts the region of interest to the position of the inspected object. Default value: atl::NIL.
inEdgeOperatorAvlNet.GradientMaskOperatorSelected gradient operator.
inEdgeMeasureAvlNet.MagnitudeMeasureSumSelected method of gradient magnitude computation. Default value: Sum.
inEdgeScaleint<1, 16>1Scales the resulting gradient magnitudes. Default value: 1.
inMinStrengthint<0, 255>15Lowest acceptable edge magnitude. Default value: 15.
inMinAmountfloat<0.0f, 1.0f>0.2fLowest acceptable fraction of pixels meeting the criteria. Default value: 0.2f.
inMaxAmountfloat<0.0f, 1.0f>1.0fHighest acceptable fraction of pixels meeting the criteria. Default value: 1.0f.
outIsPresentboolFlag indicating whether the object is present or not.

Function Overrides

See also