A Novel Method for Identifying the Thickness of the Tongue Coating

Verifying the thickness of tongue coating is an important part of the Automated Tongue Diagnosis system. According the definition of the thickness of tongue coating in Traditional Chinese Medicine and combining the ambiguity between tongue coating and tongue body, this paper proposes an algorithm based on Bayes formula to identify the thickness of tongue coating. Several experiments are taken in different color spaces. The result shows that this algorithm is useful for identifying the thickness of tongue coating.