Objective Tongue diagnosis is one of the effective ways to diagnose acne. Traditional Chinese medicine( TCM) in treatment of acne is currently mainly determined by doctors to be observed in patients' tongues. Because the number of patients with acne is numerous,the efficiency completely based on the artificial diagnosis is low. This paper presents a novel method for the diagnosis of acne syndromes with a computer to assist TCM diagnosis. Methods First of all,features of color,texture and teeth marks were ex...