[Retracted] Tobacco Leaves Disease Identification and Spot Segmentation Based on the Improved ORB Algorithm

Table 4

Selected color feature information of six images of tobacco brown spot disease and frog eye disease in the early, middle, and late stages (HSV color space model).

	HSV first-order color moment			HSV second-order color moment			HSV third-order color moment
Early stage of brown spot disease	0.003	0.007	0.875	0.045	0.071	0.059	0.245	0.232	0.142
Middle stage of brown spot disease	0.006	0.018	0.085	0.050	0.099	0.198	0.074	0.176	0.175
Late stage of brown spot disease	0.149	0.120	0.143	0052	0.085	0.021	0.133	0.070	0.111
Early stage of frog eye disease	0.002	0.002	0.002	0.058	0.065	0.760	0.043	0.153	0.120
Middle stage of frog eye disease	0.004	0.009	0.011	0.045	0.019	0.012	0.011	0.500	0.504
Late stage of frog eye disease	0.008	0.025	0.023	0.060	0.011	0.002	0.008	0.001	0.005