Digital Signal Processing Reference
In-Depth Information
(a)
(b)
λ
∗
(c)
(d)
0,8
(e)
(f)
FIGURE 12.9
Dependence of the efficiency of the P-M AD filter and the DPAF on the
λ
∗
parameter: (a) color
image
LENA
contaminated with impulsive noise (
p
=
0
.
12,
p
1
=
p
2
=
p
3
=
0
.
3), (b) test image
corrupted by mixed noise (
σ
=
30,
p
=
0
.
12,
p
1
=
p
2
=
p
3
=
0
.
3), (c and d) results obtained with
the P-M AD filter, (e and f) results obtained with the DPAF (
η
=
2). As expected the maximum
λ
∗
of PSNR is achieved for
close to 1.
Search WWH ::
Custom Search