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AVL.RegionHitAndMissTransform(AvlNet.Region, AvlNet.Region, AvlNet.Location?, AvlNet.Region, AvlNet.Location?, AvlNet.Region)

Performs a hit-and-miss transformation on a region using arbitrary kernels.

Namespace:	AvlNet
Assembly:	AVL.NET.dll

Syntax


public static void RegionHitAndMissTransform(
	AvlNet.Region inRegion,
	AvlNet.Region inHitKernel,
	AvlNet.Location? inHitKernelAnchor,
	AvlNet.Region inMissKernel,
	AvlNet.Location? inMissKernelAnchor,
	out AvlNet.Region outRegion
)

Parameters

inRegion: Type: AvlNet.Region
Input region
inHitKernel: Type: AvlNet.Region
The kernel of pixels that should be present
inHitKernelAnchor: Type: System.Nullable<AvlNet.Location>
Location withing inHitKernel, defining its center, or null.
inMissKernel: Type: AvlNet.Region
The kernel of pixels that should be missing
inMissKernelAnchor: Type: System.Nullable<AvlNet.Location>
Location withing inMissKernel, defining its center, or null.
outRegion: Type: AvlNet.Region
Output region

Description

The operation performs a hit-and-miss transformation. Similarly to other region morphology operations, hit-and-miss is conducted using a shape called kernel (or structuring element). In this particular case, there are two kernels: inHitKernel and inMissKernel. Both of them are repeatedly centered at each location within the dimensions of the input region. Then, pixel location L is added to the resulting region if and only if all of the inHitKernel pixels centered at L lie inside and all of the inMissKernel pixels centered at L lie outside the input region.

Examples

RegionHitAndMissTransform run with kernels \( \begin{bmatrix} 1 & X & X\\ 1 & 0 & X\\ 1 & X & X \end{bmatrix} \) where \( 1 \)'s represent pixels from inHitKernel, \( 0 \)'s from inMissKernel and \( X \)'s the other ones.

Errors