Table 6.

Paired samples test for preprocessing effect using HAM10000 dataset.

Variable			Mean	Std. Err.	Std. dev.	[95% CI]	t-value	df	Sig a
Accuracy	Pair 1	Without preprocessing	0.910	0.001	0.105	0.908–0.912	4.765	10,014	0.000
		With artifact removal	0.909	0.001	0.106	0.907–0.911
	Pair 2	Without preprocessing	0.910	0.001	0.105	0.908–0.912	−0.7440	10,014	0.000
		With image enhancement	0.914	0.001	0.103	0.912–0.916
Dice	Pair 3	Without preprocessing	0.824	0.002	0.153	0.821–0.827	6.339	10,014	0.000
		With artifact removal	0.821	0.002	0.157	0.818–0.824
	Pair 4	Without preprocessing	0.824	0.002	0.153	0.821–0.827	3.801	10,014	0.000
		Without preprocessing	0.820	0.002	0.169	0.817–0.823

Std. Err. = standard error; Std dev. = standard deviation; Sig = significance; ^a (2-tailed); CI = confidence interval; df = degrees of freedom.