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AVL.CloseRegion Method

Performs a morphological closing on a region using selected predefined kernel.

Namespace:	AvlNet
Assembly:	AVL.NET.dll

Syntax

public static void CloseRegion(
	AvlNet.Region inRegion,
	AvlNet.RegionMorphologyKernel inKernel,
	int inRadiusX,
	int? inRadiusY,
	out AvlNet.Region outRegion
)

Parameters

Name	Type	Range	Default	Description
inRegion	AvlNet.Region			Input region.
inKernel	AvlNet.RegionMorphologyKernel			Kernel shape (predefined).
inRadiusX	int	<0, INF>	1	Nearly half of the kernel's width (2*R+1). Default value: 1.
inRadiusY	int ?	<0, INF>		Nearly half of the kernel's height (2*R+1), or same as inRadiusX. Default value: atl::NIL, or null.
outRegion	AvlNet.Region			Output region.

Description

The operation performs a morphological closing, which is a tool used for filling gaps in a region. The operation is a convolution of two basic morphological operations:

Firstly, the input region is dilated using DilateRegion operation.
Then, the resulting region is eroded using ErodeRegion operation.

During the dilation gaps that are small enough are actually closed, while further erosion assures that the width of region limbs is preserved.

Both of the component operations are conducted using the same inKernel, inRadiusX and inRadiusY parameters.

Examples

CloseRegion run with inKernel = Ellipse of dimensions inRadiusX = 5, inRadiusY = 5.

Errors