This software implements an active contour (a.k.a. snake) segmentation method using exponential splines as basis functions to represent the outline of the shape. While the snake is versatile enough to provide a good approximation of any closed curve in the plane, its most important feature is that it perfectly reproduces circular and elliptical shapes. These features are very appropriate to delineate cross sections of cylindrical-like conduits and to outline blob-like objects.
