HitMissTransform

gives the hit-or-miss transform of image with respect to the composite structuring element ker.

HitMissTransform[image,{ker₁,ker₂,…}]

gives the union of the hit-or-miss transforms for all the structuring elements ker_i.

HitMissTransform[image,{ker₁,ker₂,…},t]

treats values above t as foreground.

Details and Options

HitMissTransform is an image morphology operation that is commonly used to detect positions where a specific pattern such as a corner or an endpoint occurs in the image.
HitMissTransform works with arbitrary 2D and 3D images.
The composite structuring element ker is a matrix containing (foreground), (background), and (don't care) elements.
The structuring element is automatically padded with zeros to have odd dimensions.
HitMissTransform takes a Padding option. The default setting is Padding->1.

Find all foreground pixels that are below a background pixel:

Find bottom-right corners:

Find all corners by specifying four structuring elements:

Find the larger disks:

Find the larger balls:

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