how to add noise to image in frequency domain

if anyone have matlab code for adding noise like guassian exponential gamma salt and pepper religh uniform plz help me.. thanks in advance

Answer 1

[Thijs]

try the following:

help rand

or

help randn

[umar siyab]

i say adding noise in image

[Walter Roberson]

Generate a noise matrix, RandomNoise, and use

NoisyImage = OriginalImage + RandomNoise