The Study on the Agreement between Automatic Tongue Diagnosis System and Traditional Chinese Medicine Practitioners

Table 4

Inter-observer agreement among the TCM doctors.

Features	Kappa value
Tongue color	0.50
Fur color	0.62
Fur thickness	0.48
Tongue fissure	0.57
Red dot	0.23
Ecchymosis	0.16
Tooth mark	0.35
Saliva	0.42
Tongue shape	0.40
Mean	0.41±0.15