Yog koj nyiam thaij duab nrog koj cov koob yees duab, tab sis qee zaus koj tsis ncav cov ntsiab lus uas koj cia siab rau, paub txog kev siv Curves feature hauv GIMP tuaj yeem pab koj tsim duab zoo dua.
Tus Curves feature hauv GIMP tuaj yeem saib kev sib thab, tab sis nws yog intuitive siv heev. Qhov tseeb, koj tuaj yeem tau txais cov txiaj ntsim tau zoo los ntawm kev fiddling nrog Curves tsis nkag siab txog yam koj ua.
Nyob hauv daim duab nrog, koj tuaj yeem pom daim duab thawj ntawm sab laug nrog qhov tsis zoo thiab qhov nws tau raug khees me ntsis lawm ntawm txoj cai los ntawm kev ua tus Curves hloov hauv GIMP . Koj tuaj yeem pom tias qhov no tau ua tiav hauv cov nplooj ntawv txuas mus ntxiv no.
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Qhib cov Curves Dialog hauv GIMP
Thaum koj tau qhib ib Diam duab uas koj xav tias tsis zoo ib yam, mus rau xim > Curves qhib qhov Curves dialog.
Koj yuav pom tias muaj ntau qhov kev xaiv muaj, tab sis rau qhov kev qoj ib ce, las mees lub Presets , xyuas kom cov Channel poob qis yog teem rau Tus Nqi thiab Curve Hom yog du . Tsis tas li ntawd, kos lub thawv saib ua ntej los yog koj yuav tsis pom cov nyhuv ntawm koj cov kev kho me ntsis.
Koj yuav tsum pom tau tias ib qho keeb kwm tshwm nyob rau tom qab Curves kab, tab sis nws tsis tseem ceeb kom nkag siab qhov no vim peb tsuas yog mus rau qhov siv qhov yooj yim 'S'.
Ceeb toom: Ua ntej yuav ua kev kho me ntsis rau koj cov duab, nws yuav tsum tau tawm tswv yim los ua ib daim qauv ntawm cov ntaub ntawv qub los sis txawm tias zoo tib yam txheej tom qab thiab kho kom raug qhov no ua ntej txuag tau lub JPEG ntawm cov duab yees.
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Kho Curves hauv GIMP
Tus 'Caws' yog ib txoj kev yooj yim ua kom muaj kev hloov nrog cov Curves feature ntawm GIMP thiab qhov no yog qhov feem ntau ua Curves kho hauv cov duab editor. Nws yog ib qho yooj yim heev los txhawb qhov kev sib piv ntawm ib daim duab thiab nws tseem ua kom cov xim tshwm tuaj ntau dua.
Hauv lub qhov cub Curves , nias ntawm kab pheeb ces kaum qhov chaw ntawm sab tes xis thiab rub nws nce siab. Qhov no ua rau lub ntsej muag pixel sib dua hauv koj yees duab. Tam sim no nyem rau ntawm kab ntawm sab laug thiab luag nws downwards. Koj yuav tsum pom hais tias qhov tsaus ntuj nti pixels hauv koj tus yees duab tau tsaus ntuj.
Koj yuav tsum tau siv qee yam kev txhawj xeeb kom tsis txhob ua rau pom kev tsis zoo, tab sis qhov no nyob ntawm kev saj. Thaum koj zoo siab nrog cov nyhuv, cia li nias OK los thov cov nyhuv.
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Tus Histogram yog dab tsi?
Raws li tau hais, lub Curves dialog qhia txog cov keeb kwm yav dhau ntawm Curves kab. Koj tuaj yeem nyeem ntxiv txog qhov keeb kwm ntawm qhov kev txhais ntawm cov cim histogram.
Hauv daim duab, koj tuaj yeem pom tias cov histogram tsuas them rau thaj chaw nruab nrab ntawm qhov rais. Uas txhais tau hais tias tsis muaj pixels nrog tsaus nti los yog lub teeb ci uas muaj nyob hauv daim duab - Kuv txo qhov kev sib piv ntawm cov yees duab uas tau tshwm sim los ntawm cov nyhuv.
Qhov no txhais tau hais tias cov nkhaus yuav tsuas muaj kev cuam tshuam thaum nws nyob hauv cheeb tsam uas muaj kev pov puag los ntawm cov ntawv histogram. Koj tuaj yeem pom tias kuv tau ua qee yam kev kho me ntsis heev nyob rau hauv cov cheeb tsam mus rau sab laug thiab txoj cai ntawm qhov nkhaus, tab sis cov duab tom qab zoo li feem ntau tsis zoo vim tias tsis muaj pixels hauv daim duab nrog kev txuam qhov tseem ceeb.