Table 1.

Employed dataset distribution.

	Partition	Normal	Pneumonia	COVID-19	Lung Opacity	Total	Total
Data_A	Training	3000	3000	3000	3000	12000	14400
	Validation	300	300	300	300	1200
	Testing	300	300	300	300	1200
Data_B	Training	3500	3500	3500	–	10500
	Validation	500	500	500	–	1500	1500
	Testing	1000	1000	1000	–	3000