Edge Detector Design Based on LS-SVR

Table 4

Optimal parameters of Canny’s edge operator.

𝑑	1	2	3	4	5	6	7
𝜎^2	0.41	0.80	1.32	2.00	2.82	3.76	4.84
Σ^2	1. 0773	2.4563	4.5218	7.2343	10.5046	14.2572	18.5671
Λ^2	0.0924	0.1849	0.2061	0.2094	0.2109	0.2126	0.2133