影响画面色彩构成的因素Factors that influence the composition of color.docx
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影响画面色彩构成的因素Factors that influence the composition of color.docx
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影响画面色彩构成的因素Factorsthatinfluencethecompositionofcolor
影响画面色彩构成的因素(Factorsthatinfluencethecompositionofcolor)
Portraitphotography,howcanwecontrolthepicturecolor,clapabeautifulcolorpicture,thosefactorswillaffecttheperformanceofthepicturecolor,theseareallprofessionalportraitphotographermuststudytheproblem.Themainfactorsinfluencingtheportraitphotographypicturecolorcompositionare:
clothing,suchasbackground,theprops-inherentcolor,environmentalcolour,thecolouroflightcolorchange,theinfluenceofthedigitalequipmentandothercomputerlater.
1.Theinfluenceoftheinherentcoloronthecolorofthepicture
Inportraitphotographer'schoiceofcoloursanddesignfromsubjectcommonlymakeupmodelling,theclothingcolor,backgroundcolor,andothercontrol,thatisthechoiceofnaturalcolor.Clothing,backgroundandsoonpresentavarietyofcolors,theinherentcoloroftheseobjectsreferstothecolorweseebelowthewhitelight.Whenanobjectisexposedtolight,itabsorbspartofthelightoftheprojectionlightandreflectsthepartofthelight.Thereflectedlightisthecoloroftheobjectwesee.Subject,dressedinareddress,forexample,undertheirradiationofwhitelight,redclothingabsorbsthewhitelight(red+green+blue)ingreenandbluelight,reflectionofredlight,redlightstimulateourconenerve,makeourbrainproducesred,thenweseethecolorofthedressisred.Ifyouabsorbthebluelightfromthewhitelight,andreflecttheredandgreenlight,weseethattheperson'scostumeisyellow,becausetheredandgreenlightisyellow.Iftheclothesofthephotographedareabsorbedbythered,greenandbluelightofthewhitelight,andnotreflect,theclothingweseeisblack.Iftheperson'sclothingabsorbslittle,red,blue,andbluelight,it'salmostalwaysreflected,sotheoutfitmustbewhite.Ifred,green,bluelightabsorbafew,andthesameamountofreflection,thentheclothingmustbegray.Thecolorofthesubjectitselfiscalled"intrinsiccolor"inthecolorstudy,whichisshowninfigure1.Wefromthenatureoftheprojectthelight(hardandsoft),strongorweak,colortemperature,clothing,backgroundofdifferentsurfacestructures,differentviewingdistance,theobject'sinherentcolorcanproducedifferentchangestonaturalcolourtothepicturecoloreffects.
L.Theinfluenceoftheinherentcoloronthecolorofthepaintingundertheprojectionofdifferentproperties
Underdirectlight(hard)lightirradiation,theexperiencesubjectformedbythesmoothsurfaceandthesurfaceoftheshadow,receivestheinherentcolorwillbedilutedbythestrongdirectsunlight,darkshadowsbelowwillbeduetothesunistoohardandtoodeep,thelackofabundantlightandtransition,subjectthefacethelightistoohardtoaccept,facealackoflightlevel,underthe(soft)oflightscatteringlightilluminatethecolorofyoursubjectissaturated.Soinordertobeabletoreproducethecoloroftherestoreimageinthelightoflighting,weshouldusethescatteredlightasmuchaspossible.Ifyouwanttousehardlight,youshouldbeabletocontrolthelightratioandreasonablelighting.Asshowninfig.2andfig.3,fig.2showstheobviouslossinthefaceofthefaceandthenaturalcoloroftheskin.FIG.3USESthesoftlightilluminationofthescatteringpropertyduringtheshooting,becausethelightissoftandthestatecoloroftheobjectisbetter.
2.
Theinfluenceoftheinherentcoloronthecolorofthescreenunderdifferentintensityprojectionlight
Theintrinsiccolorofthelightunderdifferentintensityisdifferent.Ifthelightistoobright,thenaturalcolorofthelightwillbewashedawaybythelight.Ifthelightingistooweak,thecolorofthesubjectwillbedarkeranddarker,affectingthereproductionofcolor.Therefore,inordertomakethecolorofthepicturegood,theintensityofprojectionlightshouldbeappropriate,neithertoostrongnortooweak.Aboutthis,wefromfigure4to6canbeprovedthatfigure4suitablelightintensity,betterpictureofthecolorreduction,figure5duetoprojectthelightistoostrong,makethesubject'sfacebrightsurfaceandclothesbrightoverexposed,obviouslyweakentheinherentcolor,picturecolorreductionisnotveryaccurate.FIG.6thelightistooweaktoexpose,andthecolorisalsoweakenedandthecolorisdullanddull.
3.Theinfluenceoftheinherentcolorchangeofdifferentstructuresonthecolorofthepicture
Therepresentationofeachelement'sinherentcolorisalsorelatedtoitssurfacestructure.Thesurfaceofthesphereandthesmoothsurfaceareeasytoreflect,andthesereflectionsoftenformbrillianthighlights,whichcaneasilydilutethenaturalcolorofthesubject.Therefore,theintrinsiccolorofthesurfaceofthesphereandthesmoothsurfaceisnotassaturatedastheinherentcolorofthesurfaceoftheroughsurface.Therefore,weshouldconsiderthematerialofthecostume,thematerialofthebackground,thetextureoftheitemandsoonwhenformingthecolorofthepicturetothinkabouttheactualreductionofcolor.Asshowninfigure7,inflatableitemsthatwereonthesubjectoftheproducedmanyhighlights,thehighlightswillbeinflatabledolphinsinherentcolordiluted,theclothingwornbythecharactersrelativeitemsinflatabledolphins,hasaroughsurfacetexturepattern,sotheclothesreflectiverateisrelativelylower,soitissaturatedandtheinherentcolorofcolorreductionmoreaccurately.
4.Theinfluenceofcolorchangeonthecolorofthescreen
Thenaturalcolorofobjectsofdifferentdistancesisalsodifferent,especiallytheoutdoorscenery,especiallysothatthecolorcompositionofthepictureisveryinfluential.Thedistancefromourphotographer,themoreunsaturatedthecoloroftheimage,andthetoneofsomeblueandblue,itsnaturalcolorisweakened.Figure8isanexampleofthis,inthispicture,closetotheenvironmentandthecharacteroftheinherentcolorrelativelywellbetter,showsthecharacteristicsofitsowncolor,butthesceneryinthedistanceoftheinherentcolorwasweakened,andwithalayerofindigocolordepth.Fromtheaboveanalysis,ifwanttoputinyoursubject'sinherentbehavesaturated,brightcolor,yoursubjectandthedistanceofthecamerashouldnotbetoofaraway,otherwisewillbeaffectedbyitsinherentcolorrendering.
Theinfluenceofenvironmentcoloronthecolorofthepicture
Thecharactersintheportraitphotographysubjectstendtobearrangedincertaincircumstances,thecolorofthesurroundingenvironment,especiallytheenvironmentofhighpurity,largeareacolor(suchasgreengrass,redoryellowflowersarebloominginthemountains,bluesky,etc.),particularlyonthesurfaceoftheshadoweffectthecharacterentity.Iftheambientlightisbrighterandthedistanceiscloser,theinfluenceofthesubjectisgreater.
Thisisoneoftheimportantfactorsthatleadtothecolorofthephotointheshooting,whichalsomakesitdifficultforthelatercomputerschoolcolors.
Suchasweuseindoorswithcolorbackgroundtotakephotos,asshowninfigure9becausepeoplearenearyellowcloth,exposuretolightyellowtableclothwillreflectenvironmentwithyellowcolor,yellowlightreflectiontothecharacterofthelowerpartofthefacemakefacialskinslantsyellow,thiskindofcolourcastischaractersfrompropstooclosetothedistanceoftheobject,theeffectofenvironmentcolortoostrong.Therefore,therationalprocessingandutilizationofenvironmentalcolorisanimportantfactorinthecontrolofcolorcomposition.
Theinfluenceofthelightsourcecoloronthecolorofthepicture
Lightcolorchangesusuallyhaveobjectiveandman-madetwocases,thechangeoftheobjectiveistopointtothechangeofthelightcolortemperatureoflightcolorcompositioninfluenceontheimage,thelightsourceofhighcolortemperature,characterandenvironmentoftheinherentcolorwillbechanged,willslantscoolcolor,suchaspreferblueorcontainsthebluecolor,sothatitwillleadtothepicturecolorslantscoldtonal.Also,thelightsourcecolortemperatureislow,peopleandtheenvironmentoftheinherentcolorwillbechanged,canslantwarmcolor,suchasbiaswithorangeoryellowcolor,itwillleadtothepicturecolorslantwarmcolortomove.Wewanttomakethecolorofthepicturetomaketheexactreduction,accordingtothecolortemperatureofthelightsourcetomatchthewhitebalanceofthedigitalcameratoachievethecorrectimagecolor.Therefore,asshowninFIG.10,undertheflashofthelightsourcecolortemperatureofabout5400,wemadethewhitebalanceofthedigitalcameratotheflashmodetoensurethenormalcoloroftheimage.Fig.11istakenundertheflashlightofthelightsourcecolortemperatureofabout5400,andweadjustthewhitebalanceofthedigitalcameratotheincandescentlampmode,sothatthepicturewillproduceacoolcolor.
Man-madechangeisinterestedininstallationoffilterdeviceinfrontoftheluminousbody(suchasavarietyofmonochromeormixedcolorfilter,filter,etc.),artificialchangesthecoloroftheilluminant,butmustaccordingtothethemeofthepicturetodeterminethechangeofthelightsourcecolor,tohighlighttheeffectofrenderingimages.AsshowninFIG.12,theimageofthecolorofthelightsourcewithredandyellowishighlightedinthelightofthelightbeforethelight,highlightingtheaestheticeffectofthecolor.
Lightcolorchangeismainlyonthevariouselementsofthepictureofcolorreproductionistrue,accurateandimpact,theimpactfactorscanbecontrolledorstressed,butmust
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