Table 2.

Dataset description.

Datasets	Messidor2	APTOS	IDRiD	Diabetic Retinopathy	DDR	Merge
No DR (0)	1017	1805	134	25,810	6265	34,830
Mild NPDR (1)	270	370	20	2443	630	3718
Moderate NPDR (2)	347	999	136	5292	4447	11,209
Severe NPDR (3)	75	193	74	873	236	1441
PDR (4)	35	295	49	708	913	1987
Total Images	1744	3662	413	35,126	12,491	53,185