White noise with a std. dev. of 25 will be added to the Barb image.
The denoising methods will attempt to remove the added noise. The main
challenges of this image will be the face and stripes on the clothes.
Barb image
Add Gaussian white noise with std. dev. =
25
Gaussian filter
The denoised image is blurry and still contains nosie. No stripes are
on the pants. The
method noise contains a large amount of detail and structure from
the image.
Denoised image
Method noise
MSE=297.7
Wiener filter
The denoised image is still blurry and noisy. The stripes are
handled better. The
method noise contains a large amount of detail and structure from
the image.
Denoised image
Method noise
MSE=186.7
SUSAN filter
The denoised image is less blurry and noisy.
The face and stripes are clearer.
The method noise contains detail and structure
from the image.
Denoised image
Method noise
MSE=162.9
Non-local means
Compared to the other methods the denoised image has little blurring and
noise, but it does have
some contouring on the arm for example. The stripes are easily
reproduced by the non-local
means method because of their periodic
nature. The method noise contains very little
structure from the image.
