matlab code to generate background noise in a color image
2 views (last 30 days)
Show older comments
provide the code to generate background noise ie, white spot like in a color image
0 Comments
Answers (2)
Image Analyst
on 19 May 2013
Were my responses in your duplicate question http://www.mathworks.com/matlabcentral/answers/76170-how-to-generate-background-noise-in-a-color-image not what you were looking for? You could have continued the discussion there instead of posting a new question like it's brand new.
0 Comments
Michael Nauheimer
on 19 May 2013
How much noise is wanted? And do you want Gaussian white noise or just random noise?
If you image data is saved in A, I would say you could add Gaussian white noise by doing as shown below.
thesize = size(A);
noisesize = 20; % You choose!
for i = 1:3;
Y(:,:,i) = uint8(double(A(:,:,i))+wgn(thesize(1),thesize(2),noisesize));
end
And then you output data should be in Y with white noise added.
1 Comment
Image Analyst
on 19 May 2013
No, he wants salt and pepper noise like he stated in the duplicate of this: http://www.mathworks.com/matlabcentral/answers/76170-how-to-generate-background-noise-in-a-color-image
See Also
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!