678326.fig.008a
(a)
678326.fig.008b
(b)
678326.fig.008c
(c)
678326.fig.008d
(d)
678326.fig.008e
(e)
678326.fig.008f
(f)
678326.fig.008g
(g)
678326.fig.008h
(h)
Figure 8: Dragon image erosion (a/e), dilation (b/f), opening (c/g), and closing (d/h) with a disk of radius 3 pixels. Method of cube with other images in the RGB (a to d) and (e to h) color spaces, using Euclidean distance.