How to create a dataset of noisy images

Hi i hope you are doing well. I have implement the Following Matlab example for Radar and Communications Waveform Classification. It basically the Wigner-Ville distribution (WVD) to generate time-frequency view of the original data and save as png. It generate data for 8 classes I want to add an extra class which only contains noisy image with same parameters How can i generate that dataset

https://www.mathworks.com/help//radar/ug/radar-and-communications-waveform-classification-using-deep-learning.html

Answer 1

[KSSV]

You can add noise using either rand or randn depedning on what kind of noise distribution you want.

Or you can blurr your image as shown in the below link:

https://in.mathworks.com/matlabcentral/answers/450356-how-can-blur-an-image