Fig. 17

Demonstration of the method with which we obtain a first approximation of the ideal representative of “ε”, “ρ” and “θ”, all extracted from “FYSAP”. We have obtained this first “ideal approximation”, by averaging the coordinates of the re-enumerated contour pixels bearing the same cardinal number (as depicted in Figs. 13, 14); for each cardinal number, the corresponding mean values give rise to a single point shown with a colored asterisk in all three sub-figures. More specifically, the ideal representative’s first approximation is shown: a with deep blue asterisks, for “ε”; b with deep blue asterisks for the external contour of “ρ” and with green asterisks for the internal one; c with deep blue asterisks, for the external contour of “θ”, with green asterisks for the first internal contour and with magenta asterisks for the second internal one