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

Table 3

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

	RGB first-order color moment			RGB second-order color moment			RGB third-order color moment
Early stage of brown spot disease	1.238	1.060	0.875	1.340	1.359	1.329	1.245	1.232	1.242
Middle stage of brown spot disease	8.569	6.879	6.085	3.196	3.199	3.198	2.174	2.176	2.175
Late stage of brown spot disease	8.808	7.935	5.143	11.580	11.285	11.210	5.133	5.070	5.634
Early stage of frog eye disease	0.521	0.513	0.493	0.758	0.765	0.761	0.843	0.853	0.598
Middle stage of frog eye disease	2.767	2.541	2.063	1.822	1.819	1.012	1.511	1.500	1.504
Late stage of frog eye disease	5.961	4.924	3.258	2.820	2.811	2.802	2.008	2.001	2.005