1
Q
What is filtering
A
Neightbourhood operations
2
Q
What does a mean filter do
A
Find the mean of N-8 Neightboura
3
Q
What noise is mean filter good for
A
Gaussian noise
4
Q
What is the drawback of mean filtering
A
Blues edges
5
Q
Is mean filtering linear or non linear
A
Linear
6
Q
What does median filter do
A
Uses the median of n-8 neighbours
7
Q
What is median filtering good for
A
Salt and peer pepper
8
Q
Is median filtering linear or non linear
A
Non linear
9
Q
What does Gaussian filter do
A
Smoothens the image
10
Q
What controls Gaussian smoothing
A
Sigma
11
Q
Gaussian filter type
A
Low pass filter
