Syndrome Differentiation Analysis on Mars500 Data of Traditional Chinese Medicine

Table 1

Qualitative and quantitative features of inspection.

Parameter	Qualitative features	Quantitative features
Tongue color	Dark, pale red, red, crimson, pale purple, dark purple	RGB, HSV mean, feature color proportion
	Red tongue tip	Tongue tip RGB, HSV mean color difference between tongue tip and the rest
Fur color	White, yellow and white, yellow, and gray black	RGB, HSV mean, proportion of feature color
Texture of fur	Thick fur, thin fur	Density degree
	Curdy fur, greasy fur	Density degree, distribution
	Less moss	Coverage ratio
	No moss	Coverage ratio
	Peeling fur	Defect area
Tongue shape	Fat, thin	Degree of circularity, length-width ratio, with degree
	Fast insertion	Number and color of tongue tip's circle dot
	Crack	Proportion of crack area
	Indentation	Size of indentation area
	Petechia	Number and color of tongue tip's circle dot
	Ecchymosis	Ecchymosis position, ecchymosis RGB, HSV mean
Complexion	Blue, red, yellow, white, black, normal	RGB, HSV mean, feature color proportion
Gloss	Glossy, few gloss, no gloss	RGB, HSV mean, feature color proportion
Lip color	Dark, red, dark red, purple	RGB, HSV mean, feature color proportion