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

Table 9

Identification rates of brown spot disease and frog eye disease in different periods.

Disease type	Time of the disease	Training sample	Test sample	Test the correct sample	Test correct sample recognition rate (%)
Brown spot disease	Early	150	50	47	94
	Middle	150	50	49	98
	Late	150	50	49	98
Frog eye disease	Early	150	50	48	96
	Middle	150	50	45	90
	Late	150	50	50	100
Total		900	300	288	96