random noise matlab.

how to add random noise to image in matlab?

Answer 1

[David Young]

There are many choices you might make for the distribution of the noise. For independent additive Gaussian noise you could do this:

noisyImage = originalImage + noiseAmplitude * randn(size(originalImage));

[Faris]

ok. i'm doing like this:

Mr=Lr+0.5*randn(size()); %Lr is 64x64 image

is it correct?