Table 1.

Reconstruction error for healthy subjects (N1 to N6). ID denotes an identifier key for a hyperspectral cube or its corresponding color fundus image, N is the number of iterations of the NMF algorithm, RMS is the root-mean-square residual, and D is the maximal change of either factor A or S.

Normals
ID	N	RMS	D
N1	872	0.021399	0.00009994
N2	1000	0.024398	0.00037733
N3	1000	0.025532	0.00202895
N4	1000	0.018980	0.00013366
N5	1000	0.019192	0.00095528
N6	1000	0.021270	0.00068574