Mathematical Morphology

https://youtu.be/xO3ED27rMHs

Two basic operations:

• Dilation

• Erosion

Several composite relations:

• Closing and opening

• Thinning and thickening

Dilation

Dilation expands the connected sets of 1s of a binary image.

Can be used for:

• growing features

• filling holes and gaps

Erosion

Erosion shrinks the connected sets of 1s of a binary image

Can be used for:

• shrinking features

• removing bridges, branches, protrusions

Structuring element

A shape mask used in basic morphological ops.

• any shape, size that is digitally representable

• with a defined origin

• • box (length, width)

  • disk (diameter)