Fig. 5.

Probability distribution and traceability of the three tongue image models. (A) In the probability distribution performed during the external verification of the three tongue image models, most of the cases were distributed on both sides; that is, there were fewer cases with a vague diagnosis in the middle of 0.41–0.60. (B) Representative tongue images with different probabilities (the intersection of the three models). (C) Output diagram of the APINet model. (D) Traceability of the TransFG model. (E) Traceability of the DeeplabV3+ model.