Evaluation

The quality Q of each edge detection is computed as follows^[1]:

where

and TP means true-positives, FP -- false-positives, TN -- true negatives, FN -- false negatives, and d(i) -- the distance between the i-th edge pixels of the proposed result and ground truth. Do not hesitate to contact organizers in case of further questions.

^[1] Boaventura and Gonzaga (2009)