/// <param name="range">Minimum radius * maximum radius</param>
/// <param name="scale">le 1.0, to speed up the process.</param>
let findRadiusByClosing (img : Image<Gray, 'TDepth>) (range : int * int) (scale : float) (useOctagon : bool) : int =
/// <param name="range">Minimum radius * maximum radius</param>
/// <param name="scale">le 1.0, to speed up the process.</param>
let findRadiusByClosing (img : Image<Gray, 'TDepth>) (range : int * int) (scale : float) (useOctagon : bool) : int =