Self-Organizing Maps and Their Applications in Image Processing, Information Organization, and Retrieval - Nonlinear Signal and Image Processing: Theory, Methods and Applications - page 411

7.9

T_opt
T_SOM
T_MMSOM

7.8

7.7

7.6

7.5

7.4

7.3

7.2

7.1

7

0.2 0.3 0.4 0.5 0.6 0.7 0.8

epsilon

(a)

10

T_opt
T_SOM
T_MMSOM

9

8

7

6

5

0.2 0.3 0.4 0.5 0.6 0.7 0.8

epsilon

(b)

FIGURE 11.5
Thresholds predicted by SOM and MMSOM compared to T opt for several values of the contam-
ination percentage . (a) σ = 1; (b) σ = 3.