draw number here!
model:
Zero Masking 25%
Zero Masking 50%
Zero Masking 80%
Salt and Peppar 25%
Salt and Peppar 50%
Salt and Peppar 75%
Additive Gaussian Noise 0.25
Additive Gaussian Noise 0.50
Additive Gaussian Noise 0.75
Additive Gaussian Noise 1
clear