Table 1.

Accuracy of the developed digital shade-matching device using the Euclidean distance and the support vector machine (SVM) algorithm.

Method	Device	Matching Rate (%, 100 × (# of Matching Shade Tabs/26))										Average	SD
		1	2	3	4	5	6	7	8	9	10
ΔE (Euclidean distance)	#1	84.6	96.2	100.0	80.8	88.5	88.5	80.8	88.5	88.5	84.6	88.1	6.1
	#2	96.2	96.2	57.7	76.9	76.9	84.6	92.3	57.7	76.9	57.7	77.3	15.4
	#3	50.0	61.5	61.5	53.8	96.2	76.9	80.8	80.8	92.3	92.3	74.6	16.8
SVM	#1	96.2	92.3	100.0	88.5	88.5	100.0	100.0	96.2	96.2	92.3	95.0	4.46
	#2	92.3	88.5	96.2	96.2	96.2	84.6	92.3	84.6	92.3	96.2	91.9	4.6
	#3	84.6	96.2	92.3	92.3	100.0	92.3	88.5	88.5	100.0	100.0	93.5	5.45