Cov koob yees duab digital muaj ntau yam thiab tuaj yeem teeb tsa los xaiv qhov chaw zoo tshaj plaws rau ntau lub sijhawm kom ntseeg tau tias cov duab koj thaij tau zoo li qhov ua tau. Txawm li cas los xij, qee zaum lawv yuav muaj teeb meem hauv kev xaiv qhov tseeb qhov nyiaj tshuav dawb.
GIMP - luv rau GNU Image Manipulation Program - yog qhib qhov chaw duab kho software uas ua rau nws yooj yim los kho qhov nyiaj tshuav dawb.
Yuav ua li cas White Balance Effects Photos
Feem ntau lub teeb tshwm dawb rau tib neeg lub qhov muag, tab sis qhov tseeb, ntau hom teeb, xws li lub hnub ci thiab lub teeb tungsten, muaj xim sib txawv me ntsis, thiab cov koob yees duab digital yog qhov nkag siab rau qhov no.
Yog tias lub koob yees duab muaj nws qhov nyiaj tshuav dawb tsis raug rau hom teeb uas nws ntes tau, cov duab tshwm sim yuav muaj xim tsis zoo. Koj tuaj yeem pom tias nyob rau hauv qhov sov so cam khwb cia hauv daim duab sab laug sab saum toj. Daim duab ntawm sab xis yog tom qab cov kev kho uas tau piav qhia hauv qab no.
Koj Yuav Tsum Siv RAW Cov Duab Duab?
Cov kws yees duab hnyav yuav tshaj tawm tias koj yuav tsum tau txhaj tshuaj RAW txhua lub sijhawm vim tias koj tuaj yeem hloov pauv qhov seem dawb ntawm daim duab thaum ua haujlwm. Yog tias koj xav tau cov duab zoo tshaj plaws, ces RAW yog txoj hauv kev mus.
Txawm li cas los xij, yog tias koj yog tus kws yees duab tsis tshua muaj siab, cov kauj ruam ntxiv hauv kev ua cov ntawv RAW tuaj yeem nyuaj dua thiab siv sijhawm. Thaum koj tua cov duab JPG, koj lub koob yees duab cia li ua haujlwm ntau ntawm cov txheej txheem no rau koj, xws li kev ua kom ntse thiab txo suab nrov.
Color Cast With Pick Grey Tool
Yog koj tau txais daim duab nrog cov xim cam, ces nws yuav zoo meej rau qhov kev qhia no.
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Qhib daim duab hauv GIMP.
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Cia mus Colors > Levels txhawm rau qhib lub dialog.
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Press Pick Grey Point, uas zoo li lub pipette nrog lub thawv grey nyob ib sab ntawm nws.
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Nias qhov chaw ntawm daim duab uas siv tus xaiv grey taw tes los txhais tau tias yog xim nruab nrab ntawm lub suab. Cov cuab yeej Theem yuav tom qab ntawd hloov kho tsis siv neeg rau daim duab raws li qhov no txhawm rau txhim kho xim thiab nthuav tawm ntawm daim duab.
Yog tias qhov tshwm sim tsis zoo, xaiv Resetthiab sim lwm thaj chaw ntawm daim duab.
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Thaum cov xim zoo li ntuj, nias OK.
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Thaum cov txheej txheem no tuaj yeem ua rau cov xim ntuj ntau dua, nws muaj peev xwm ua rau raug mob me ntsis, yog li npaj los kho ntxiv, xws li siv cov nkhaus hauv GIMP.
Nyob hauv daim duab rau sab laug, koj yuav pom qhov hloov pauv loj heev. Tseem muaj xim me ntsis pov rau daim duab, txawm li cas los xij. Peb tuaj yeem kho me me kom txo tau qhov nrum no siv cov txheej txheem ua raws.
Kho xim sib npaug
Tseem tseem muaj me ntsis liab tinge rau cov xim hauv daim duab dhau los, thiab qhov no tuaj yeem hloov kho siv cov cuab yeej Xim Balance thiab Hue-Saturation.
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Go to Colors > Color Balance qhib lub Colour Balance dialog. Koj yuav pom peb lub xov tooj cua nyees khawm nyob rau hauv qhov Xaiv Range los kho nqe lus; cov no tso cai rau koj tsom mus rau qhov sib txawv tonal ranges hauv daim duab. Nyob ntawm koj daim duab, tej zaum koj yuav tsis tas yuav hloov kho rau txhua qhov ntxoov ntxoo, nruab nrab, thiab qhov tseem ceeb.
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Xaiv tus Ntxoov ntxoo xov tooj cua khawm.
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Tsiv tus Magenta-Green slider me ntsis mus rau sab xis. Qhov no txo qhov nyiaj ntawm magenta nyob rau hauv cov duab ntxoov ntxoo ntawm daim duab, yog li txo cov reddish tinge. Txawm li cas los xij, nco ntsoov tias cov xim ntsuab ntau ntxiv, yog li saib xyuas tias koj qhov kev hloov kho tsis hloov ib qho xim cam nrog lwm tus. Ua tib yam rau lwm cov xim, raws li xav tau.
Image - Nyob rau hauv Midtones thiab Highlights, kho cov sliders raws li tau txais cov xim ntuj tshaj plaws ua tau.
Kho cov xim sib npaug tau ua rau kev txhim kho me me rau daim duab. Tom ntej no, peb yuav kho lub Hue-Saturation rau kev kho xim ntxiv.
Txhim xim-Saturation
Daim duab tseem muaj xim liab me ntsis, yog li peb yuav siv Hue-Saturation los kho me ntsis. Cov txheej txheem no yuav tsum tau siv nrog qee qhov kev saib xyuas vim nws tuaj yeem ua rau pom lwm yam xim tsis xws luag hauv daim duab, thiab nws yuav tsis ua haujlwm zoo rau txhua kis.
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Go to Colors > Hue-Saturation qhib lub Hue-Saturation dialog. Cov kev tswj ntawm no tuaj yeem siv los cuam tshuam tag nrho cov xim hauv daim duab sib npaug, tab sis qhov no, peb tsuas yog xav kho cov xim liab thiab magenta xwb.
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Xaiv lub xov tooj cua khawm cim M thiab xaub lub Saturation slider rau sab laug kom txo cov magenta hauv daim duab.
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Xaiv lub xov tooj cua uas cim R hloov pauv qhov hnyav ntawm liab hauv daim duab.
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Hauv daim duab no, magenta saturation yog teem rau -10, thiab liab saturation rau -5. Koj yuav tsum tuaj yeem pom hauv daim duab yuav ua li cas cov xim liab me ntsis raug txo qis ntxiv.
Daim duab tsis zoo tag nrho, tab sis cov tswv yim no tuaj yeem pab koj khaws cov duab tsis zoo.
