顏色校正曲線 color correction curves

1、顏色校正曲線ColCrectionCurvesColCrectionCurvesmakecoladjustmentsusingcurvesfeachcolchannel.Depthbasedadjustmentsallowyoutovarythecoladjustmentaccdingtoapixelsdistancefromthecamera.Fexampleobjectsonalscapetypicallygetmedesatura

2、tedwithdistanceduetotheeffectofparticlesintheatmospherescattering.色彩校正曲線使用曲線調(diào)整每一個(gè)顏色通道。基于“深度“的調(diào)整允許我們根據(jù)攝像機(jī)與目標(biāo)物的像素距離調(diào)整其顏色。例如，由于大氣散射的存在，遠(yuǎn)處的物體通常飽和度更低。iveadjustmentscanalsobeappliedsoyoucanswapatargetcolinthescenefanothercolof

3、yourownchoosing.也可以選擇性的對(duì)場(chǎng)景中的一個(gè)目標(biāo)顏色進(jìn)行調(diào)整，將其換成你想要的顏色。LastlySaturationisaneasywaytoadjustallcolsaturationdesaturation(untilimageturnsblack&white)whichisaneffectthatisnotachievablewithcurvesonly.最后，飽和度是很容易的方法來調(diào)節(jié)所有顏色的飽和度或降低飽和度

4、（直到圖像變?yōu)楹诎祝┻@是僅曲線無法達(dá)到的效果。SeealsothenewColCrectionLuteffectflookuptexturebasedcolgrading.參見新的ColCrectionLuteffect是基于顏色分級(jí)。Thefollowingimagesdemonstratehowbysimplyenhancingthesaturationsliderthebluechannelcurvecanmakeascenedr

5、asticallydifferent下面的圖像演示了怎樣通過簡(jiǎn)單增加飽和度滑塊和藍(lán)色通道曲線來制作顯著不同的場(chǎng)景。?Blue(Depth)藍(lán)（深度）藍(lán)（深度）Thebluechannelcurvefdepthbasedcrection.基于深度調(diào)整的藍(lán)色通道曲線?BlendCurve混合曲線混合曲線Defineshowblendingbetweenthefegroundbackgroundcolcrectionisperfmed.決定前

6、景和背景顏色校正之間的如何混合?iveColCrection選擇性顏色校正?Enable啟用啟用Enablestheoptionalivecolcrection.啟用可選選擇性顏色校正?Key關(guān)鍵色關(guān)鍵色Thekeycolfivecolcrection.選擇性顏色校正關(guān)鍵色?Target目標(biāo)色目標(biāo)色Thetargetcolfivecolcrection.選擇性顏色校正目標(biāo)色UnderstingCurves理解曲線理解曲線Curvesof

7、ferapowerfulwaytoenhanceanimagecanbeusedtoincreasedecreasecontrastaddatintcreatepsychedeliccoleffects.Curveswkoneachoftheredgreenbluecolchannelsseparatelyarebasedaroundtheideaofmappingeachinputbrightnesslevel(ietheiginal

8、brightnessvalueofapixel)toanoutputlevelofyourchoosing.Therelationshipbetweentheinputoutputlevelscanbeshownonasimplegraph:曲線是改善圖像的有力工具，它可被用來降低或升高對(duì)比度、加入染色，或者創(chuàng)造出一種迷幻色彩。曲線調(diào)整對(duì)紅綠藍(lán)三個(gè)顏色通道獨(dú)立起作用，其基本思想是將每一個(gè)輸入的亮度值（比如，原始的像素亮度值）映射到你最終