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Convex Hull

The convex hull module will transform a binary blob into its convex hull. The convex hull of a binary blob is the shape formed if a rubber band were wrapped around the "outside" points of the blob. More specifically any angle formed by three perimeter points must be less than 180 degrees for a convex hull to be formed.

The convex hull is useful when you want to simplify the shape of a binary blob by simplifying the perimeter.

Example

SourceConvex Hull

See Also


Smooth Hull

For more information


Wikipedia - Convex Hull
Graham's Scan

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