Difference between Dilation and Erosion
Dilation and Erosion are basic morphological processing operations that produce contrasting results when applied to either gray-scale or binary images.
- Dilation:
Dilation is the reverse process with regions growing out from their boundaries.Dilation is A XOR B.
- Erosion:
Erosion involves the removal of pixels ate the edges of the region.Erosion is just the dual of Dilation.
Both dilation and erosion are produced by the interaction of s set called a structuring element(SE).
Difference between Dilation and Erosion:
Dilation | Erosion |
---|---|
It increases the size of the objects. | It decreases the size of the objects. |
It fills the holes and broken areas. | It removes the small anomalies. |
It connects the areas that are separated by space smaller than structuring element. | It reduces the brightness of the bright objects. |
It increases the brightness of the objects. | It removes the objects smaller than the structuring element. |
Distributive, duality, translation and decomposition properties are followed. | It also follows the different properties like duality etc. |
It is XOR of A and B. | It is dual of dilation. |
It is used prior in Closing operation. | It is used later in Closing operation. |
It is used later in Opening operation. | It is used prior in Opening operation. |
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