gives the distance transform of image, in which the value of each pixel is replaced by its distance to the nearest background pixel.


treats values above t as foreground.

Details and Options


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Basic Examples  (2)

Distance transform of a binary image:

Distance transform of a 3D image:

Scope  (1)

Distance transform of a color image:

Options  (2)

DistanceFunction  (1)

Padding  (1)

By default, Padding->1 is assumed:

Use zero padding:

Applications  (3)

Find the radius of the thickest branch in a tree:

Apply a LoG filter to the output of a distance transform:

Ultimate erosion of a binary image:

Introduced in 2008
Updated in 2010