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# Dilation, Erosion, Opening, Closing

[Laboratory]

To illustrate some basic operations using Morphology, in the examples below the following colors apply:

- Original Binary Image: Black
- Structure Element: Red
- Resultant Image: White

### Dilation and Erosion

a)Dilation; b)Erosion
a) | b)

### Closing and Opening

a)Closing; b)Opening
a) | b)

Opening is an erosion followed by a dilation operation. Closing is a dilation followed by an erosion operation.

The binary images below are shown In decreasing order: Dilation, Closing, Original, Opening and Erosion:

a)dilation; b)closing
a) | b)

a)original; b)opening
a) | b)

erosion

### Grey level Morphology

a)dilation; b)closing
a) | b)

a)original; b)opening
a) | b)

erosion

### Non Linear Smoothing

a)original; b)opening followed by a closing
a) | b)

- Lab: Dilation, Erosion, Opening, Closing