Table 4.

Training Set.

Training Set		Size (Before Enhancement)	Size (After Enhancement)
Rot degrees	(0, 20%]	53	159
	(20%, 40%]	57	171
	(40%, 60%]	45	135
	(60%, 80%]	47	141
	(80%, 100%]	38	114
	Subtotal	240	720
Rot positions	View without stalk or calyx	60	180
	Calyx view	60	180
	Stalk view	60	180
	Subtotal	180	540
Varieties	Golden Delicious	53	159
	Fuji	55	165
	Honey Crisp	46	138
	Red Delicious	58	174
	Subtotal	212	636
Complex backgrounds		216	648
Total		848	2544