Impulse ( Salt-And-Papper) Noise In Digital Image Processing (CSE)
Impulse ( Salt-And-Papper) Noise In Digital Image Processing (CSE)
Impulse
(salt-and-pepper) noise
The PDF of (bipolar) impulse noise is given by
……(1)
If b > a, gray-level b will appear as a light
dot in the image. Conversely, level a will appear like a dark dot. If either
or
is zero, the impulse noise values woll
resemble salt-and-pepper granules randomly distributed over the image. For this
reason, bipolar impulse noise also is called salt-and-pepper noise. Shot and
spike noise also are terms to refer to this type of noise.