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1、色彩學(xué)的概念、常識()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
