
FIRST-ORDER DERIVATIVE EDGE DETECTION 421
Sections 14.2 and 14.3 discuss the first-order and second-order derivative forms
of edge detection, respectively. Edge fitting methods of edge detection are consid-
ered in Section 14.4.
14.2. FIRST-ORDER DERIVATIVE EDGE DETECTION
There are two fundamental methods for generating first-order derivative edge gradi-
ents. One method involves generation of gradient ...