From: A one-dimensional slope detection approach
T m
Lxs/ Lx ∈ [− ∞,  ∞)
Lxs/ Lx ∈ [0, 1)
c m
146.69
147.31
max( c m ,1× std n )
145.85
145.16
max( c m ,3× std n )
142.47
33.22
max( c m ,6× std n )
34.87
2.60