public static void ProcessLayer(ObjectLayer layer)
        {
            foreach (var io in layer.Objects)
            {
                var correspondingEllipse = CorrespondingEllipse.FromContour(io.Contour);
                io.SetFeature("MajorAxisOfCorrespondingEllipse", new MajorAxisOfCorrespondingEllipse(correspondingEllipse).Value);
                io.SetFeature("MinorAxisOfCorrespondingEllipse", new MinorAxisOfCorrespondingEllipse(correspondingEllipse).Value);

                ConvexHull           ch  = ConvexHull.FromContour(io.Contour);
                ConvexHullProperties chp = ConvexHullProperties.FromConvexHull(ch);
                ContourProperties    cp  = ContourProperties.FromContour(io.Contour);
                AreaOfContour        ac  = new AreaOfContour(cp);
                AreaOfConvexHull     ach = new AreaOfConvexHull(chp);
                io.SetFeature("FormFactor", cp.FormFactor);
                io.SetFeature("Area", cp.Area);
                io.SetFeature("Convexity", cp.Convexity);
                io.SetFeature("AreaHull", ach.Value);
                io.SetFeature("AreaDiv", ach.Value / cp.Area);
                io.SetFeature("FormFactorOfConvexHull", new FormFactorOfConvexHull(chp).Value);
            }
        }