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Computes the smallest circle enclosing a region.

Name Type Description
inRegion Region Input region
outBoundingCircle Circle2D


  • If the input region is not guaranteed to be non-empty, precede this filter with SkipEmptyRegion.


Description of usage of this filter can be found in examples and tutorial: Fuses, Mounts (Blob Analysis), Mounts (Contour Analysis).

The resulting outBoundingCircle circle drawn onto the input region.


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

List of possible exceptions:

Error type Description
DomainError Empty region on input in RegionBoundingCircle.

Complexity Level

This filter is available on Basic Complexity Level.

Filter Group

This filter is member of RegionBoundingCircle filter group.

See Also