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1、色彩学的概念、常识()Theconceptsandcommonsenseofcolorscience2009-07-21ColorcategoriesRichcolorscanbedividedintotwobroadcategories:achromaticandcolorful:1.achromaticcolorsystemisavarietyofshadesofwhite,black,andwhiteandblack・Nocolorinaccordancewithcertainrules,ca
2、nbearrangedinaseries,fromwhitetogray,graygradient,darkgraytoblackcoloroncallthisseriesofblackandwhite.Inblackandwhiteseries,thechangefromwhitetoblackcanberepresentedbyaverticalaxis・Oneendiswhite,theotherendisblack,andtherearevarioustransitionalgreyinth
3、emiddle・Whiteiscompletelyreflectedtheidealobject,blackistheidealobjectcompletelyabsorbed・Butinreallifethereisnoblackandwhiteobjects,pigmentsusedinwhiteandwhiteonlyclosetowhite,blackandblackcoalcanbereached.Thecoloroftheachromaticsystemhasonlyonebasicpr
4、operty一lightness・Theydonothavehueandpurity,thatistosay,theirhueandpurityarezerointheory.Thebrightnessofcolorscanbeexpressedinblackandwhite・Theclosertowhite,thehigherthebrightness:theclosertoblack,thelowerthebrightness・Blackandwhiteaspigments,youcanadju
5、stthecoloroftheobject'sreflectivity,sothattheobjectcolortoimprovebrightnessorreducebrightness・2.,therearecolor(referredtoascolor),colorreferstored,orange,yellow,green,green,blue,purpledndothercolors・Differentbrightnessandpurityoftheorangeyellowgreenblu
6、epurpletonesarecolorlines・Colorisdeterminedbythewavelengthandamplitudeofthelight,thewavelengthdetermineshue,andtheamplitudedetermineshue・BasicfeaturesofcolorColorcolorhasthreebasicfeatures:hue,purity(alsoknownaschroma,lightness,saturation)・Incolorscien
7、ce,alsoknownasthethreemajorelementsofcolororcolorofthethreeattributes・1.,hue,hueisthebiggestfeatureofcolor.Theterm〃hue〃referstotheexactrepresentationofacertaincolor,color,orothername・Suchasrosered,orangeyellow,lemonyellow,ultramarine,cobaltblue,greenFr
8、omanopticalandphysicalpointofview,hueisdeterminedbythespectralcompositionoftheraysoftheeye・Formonochromaticlight,thehueofthehuedependsentirelyonthewavelengthofthelight;forthemixedchromaticlight,itdependsontherelativeamountoflightatallwa
