(1) No additional noise (2) sigma=0, epsilon=10% (3) sigma=10, epsilon=0% (4) sigma=10, epsilon=10%
Corresponding new edge quality measure: (1) 0.0639 (2) 0.0710 (3) 0.0700 (4) 0.0721
The new robust edge detector demonstates its ability in dealing with outliers and performs best when compared with the other operators. If only Gaussian noise is present, the tanh operator performs better.