curprev16:4916:49, 11 July 2017 31.168.154.65talk 24,636 bytes−2 Removed spurious 1 from the equation of termination functional of energy. See for example equation (8) in http://web.cs.ucla.edu/~dt/papers/ijcv88/ijcv88.pdf or equation (3.8) in https://mat-web.upc.edu/people/toni.susin/files/SnakesAivru86c.pdfundo