[Retracted] Grape Leaf Disease Classification Combined with U-Net++ Network and Threshold Segmentation

Table 2

Grape disease table.

Severity level	Healthy area of grapes in the total area
0	s = 100
1	95% ≤ s < 100%
3	90% ≤ s < 95%
5	80% ≤ s < 90%
7	50% ≤ s < 80%
9	s < 50%