Table 1.

Set of the 52 features used to produce the node potentials.

Feature type	Number of features	Presumed use
Statistics	4	Low intensity of the blurry DEJ pattern
Power spectrum	1	Low intensity of the blurry DEJ pattern
Gray-level co-occurrence matrix	12	Epidermal pattern and ringed DEJ pattern
Gabor output filter	32	Blurry pattern of the DEJ, epidermal, and dermal contrasted pattern
Laplacian	3	Blurry pattern of the DEJ and its location in depth