Table 2.

Prediction (image numbers) of the developmental stage of images.

Actual stage range/Predicted stage range	1–3	4–6	7–8	9–10	11–12	13–16
1–3	447	3	0	0	0	0
4–6	0	446	0	0	0	0
7–8	1	0	379	0	0	0
9–10	0	0	0	372	1	0
11–12	1	1	0	0	435	0
13–16	2	0	0	0	2	362