A New Tongue Colorchecker Design by Space Representation for Precise Correction

Abstract—Inordertoimprovethecorrectionaccuracyontongue colorsbyuseofaMunsellcolorchecker,thisresearchaimstodesign a new colorchecker by aid of tongue color space. Three essential issues leading to the development of this space-based colorchecker areelaboratelyinvestigatedinthisstudy.First,basedonalargeand comprehensive tongue database, tongue color space is established bywhichallvisiblecolors…