Back to Adaptive Vision Library website
You are here: Start » Function Reference » Region Global Transforms » RegionInteriors
RegionInteriors
Removes boundary pixels from a region.
Header: | AVL.h |
---|
Syntax
C++
C#
void avl::RegionInteriors ( const avl::Region& inRegion, avl::RegionConnectivity::Type inConnectivity, avl::Region& outRegion )
Parameters
Name | Type | Default | Description | |
---|---|---|---|---|
inRegion | const Region& | Input region | ||
inConnectivity | RegionConnectivity::Type | 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
Remarks
This filter is mostly used in Blob Analysis Technique please refer to our Machine Vision Guide - Blob Analysis article.
Errors
Error type | Description |
---|---|
DomainError | Not supported connectivity type in RegionInteriors. |
See Also
- RegionBoundaries – Removes interior pixels from a region.