325785.fig.009a
(a)
325785.fig.009b
(b)
325785.fig.009c
(c)
325785.fig.009d
(d)
Figure 9: The vertical projections of gray scale of (a) and (d) in Figure 8. (a) the vertical projection of gray level of original image (a) in Figure 8, (b) part of (a), (c) the vertical projection of gray level of original image (d) in Figure 8, (d) part of (c).