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Mathematica > Data Manipulation > Image Processing & Analysis > Mathematical Morphology > CornerNeighbors >

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CornerNeighbors

CornerNeighbors
is an option for various array and image processing functions that specifies whether diagonally adjacent corners should be considered neighbors of particular elements.

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CornerNeighbors->True treats all eight cells around a given cell in 2D as being neighbors.

CornerNeighbors->False treats only the four non-corner cells as being neighbors.

EXAMPLES

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Basic Examples (2)

Eight-connected components:

Four-connected components:

Eight-connected components:

In[1]:=

Out[1]//MatrixForm=

Four-connected components:

In[1]:=

Out[1]//MatrixForm=

Scope (3)

Finding the morphological perimeter of an object:

This image contains either one or 16 objects, depending on the setting of CornerNeighbors:

The result of geodesic dilation may depend on the definition of connectivity: