Table 2. Confusion matrix of chondrocytes and non-chondrocytes

Classification	Reference data		No. of data
	Chondrocytes	Non-chondrocytes
Chondrocytes	2,016	1,534	3,550
Non-chondrocytes	177	15,721	15,898
No. of data	2,193	17,255	19,448
Accuracy (%)	91.20 ± 8.431)

Data represent mean ± S.D.