comp.lang.idl-pvwave archive: archive » How to add standard gaussian noise to a image pixel

Home » Public Forums » archive » How to add standard gaussian noise to a image pixel

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

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

Report message to a moderator

[Message index]

How to add standard gaussian noise to a image pixel

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

Previous Topic:	labels for multiple x axis
Next Topic:	CW_FILESEL size

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sun Oct 12 13:05:46 PDT 2025

Total time taken to generate the page: 1.68116 seconds