then which type of above noise is?

if i generate noise using

n=0+(std)*randn(size)

then which type of above noise is? gaussian,salt & pepper ,speckle or it is other

Answer 1

[Walter Roberson]

gaussian.

[vipul utsav]

then,if i generate noise n=0+sqrt(100)*randn(size(I)) with '100' variance

and i added noise into image I and generate noisy image.

now i generate noisy image using imnoise(I,'gausssian',0,0.01) with '0.01' variance.

then i compare both noisy image, then i show that noisy image with '0.01' variance look more noisy compared to noisy image with '100' variance.

why this happened(because both noise is type of gaussian)?

[Walter Roberson]

Check class() of the two results.

[vipul utsav]

both are double.