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RegionInteriors

Removes boundary pixels from a region.

Name	Type	Description
inRegion	Region	Input region
inConnectivity	RegionConnectivity	Type of connectivity used for the region foreground
outRegion	Region	Output region

Description

The operation removes all boundary pixels from the region (thus leaving only the interior pixels). The definition of boundary pixel depends on the inConnectivity value:

If inConnectivity is set to Four directions, boundary pixels are those having at least one of the neighbours in four major directions (up, down, left, right) not contained in the region
If inConnectivity is set to Eight directions, boundary pixels are those having at least one of the neighbours in all eight directions (four major + four diagonal) not contained in the region

Examples

RegionInteriors run on a sample region.

Remarks

This filter is mostly used in Blob Analysis Technique please refer to our Machine Vision Guide - Blob Analysis article.

Errors

This filter can throw an exception to report error. Read how to deal with errors here: Error Handling

Error type	Description
DomainError	Not supported connectivity type in RegionInteriors.

Complexity Level