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How to add standard gaussian noise to a image pixel [message #42189]

Wed, 05 January 2005 11:09

coold
Messages: 8
Registered: December 2004

Junior Member

Could you please suggest how I can add standard gaussian noise with
zero mean and standard deviation of different values like .5, 1,1.5 in
IDL

I have tried the following as mentioned in IDL help guide
nx=60
ny=60
nz=100
noisy[*,*,*] = original[*,*,*] + randomn(seed,nx,ny,nz)

But the spectrum(output) I get for each pixel is not like expected.
Thanks for any help.
coold

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How to add standard gaussian noise to a image pixel

By: coold on Wed, 05 January 2005 11:09

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