Fault-Level Grading of Photovoltaic Cells Employing Lightweight Deep Learning Models

Table 2

Size of electroluminescence image data: classwise.

Class	Label	Defect probability	Number of images
1	Healthy	0.00	1508
2	Less faulty	0.33	295
3	Medium faulty	0.66	106
4	Faulty	1.00	715