1
Q
What is erosion
A
Shrinks objects to separate regions
2
Q
What is dilation
A
Expand objects to connect regions
3
Q
What operation does dilation use
A
OR logical operation
4
Q
What operation does Erosion use
A
AND logical operation
5
Q
What is a morphological opening
A
Erosion followed by Dilation
AoB = (A-B)+B
6
Q
What is the purpose of Opening
A
Remove noise and smoothen contours
7
Q
What is morphological closing
A
Dilation followed by erosion
A•B=(A+B)-B
8
Q
Purpose of closing
A
Join nearby connected components
9
Q
What is skeletonisation
A
Reduce regions to skeletal remnants
10
Q
What does skeletonisation preserve
A
Extent and connectivity of the original
