CMYK yog qhov tseem ceeb rau cov xim xim tseeb
CMYK xim qauv siv rau hauv cov txheej txheem luam ntawv. Nws yog siv nyob rau hauv koj qhov chaw ua haujlwm inkjet thiab cov tshuab luam ntawv thiab cov tshuab luam ntawv siv los ntawm cov kws luam ntawv. Ua tus qauv nraaj, nws tseem ceeb heev uas koj to taub ob lub CMYK thiab RGB xim qauv thiab thaum twg koj yuav tsum tau siv lawv.
RGB ua rau CMYK li cas
Yuav kom nkag siab txog CMYK xim qauv, nws yog qhov zoo tshaj rau koj pib nrog kev to taub ntawm RGB xim.
RGB xim qauv ua los ntawm xim liab, ntsuab thiab xiav. Nws siv rau hauv koj lub computer saib thiab yog dab tsi koj yuav saib tau koj cov dej num thaum tseem tseem ntawm kev tshuaj ntsuam. RGB muab khaws cia rau cov haujlwm uas tsim los nyob hauv kev tshuaj ntsuam (websites, pdfs, thiab lwm yam web graphics, piv txwv).
Cov xim no, tab sis, tsuas yog tuaj yeem saib nrog lub ntuj tsim lossis lub teeb, xws li hauv computer saib, thiab tsis nyob rau ntawm phab ntawv luam tawm. Qhov no yog qhov chaw uas CMYK los rau hauv.
Thaum ob lub RGB xim muaj sib npaug sib npaug lawv tsim cov xim ntawm CMYK cov qauv, uas yog hu ua cov sib tw ua ntej.
- Ntsuab thiab xiav tsim cyan (C).
- Liab thiab xiav tsim magenta (M).
- Liab thiab ntsuab tsim daj (Y).
- Dub yog ntxiv rau tus qauv vim nws tsis tuaj yeem raug tsim nrog 3 qhov sib tw ua ntej (thaum ua ke lawv tsim ib cov xim dub). Lub K, lossis "qhov tseem ceeb," yog rau dub.
CMYK nyob rau hauv tus Txheej Txheem Ntawv
Cov plaub-xim luam ntawv siv plaub daim phiaj npaj ; ib qho rau cyan, ib qho rau magenta, ib qho rau daj, thiab ib qho rau dub. Thaum cov xim sib xyaw rau ntawm daim ntawv (lawv tau muab luam tawm ua cov me dots), tib neeg qhov muag pom qhov kawg duab.
CMYK hauv Nraaj tsim
Cov duab nraaj tsim muaj qhov teeb meem ntawm kev pom lawv ua haujlwm hauv kev tshuaj ntsuam hauv RGB, txawm tias lawv cov ntawv kawg yuav tsum nyob hauv CMYK. Cov ntaub ntawv yuav tsum raug hloov mus rau CMYK ua ntej xa lawv mus rau cov luam ntawv tshwj tsis yog tau teev.
Qhov teeb meem no txhais tau hais tias nws yog ib qho tseem ceeb uas yuav tau siv "swatches" thaum tsim yog tias xim xim txuam tseem ceeb. Piv txwv li, ib lub tuam txhab lub logo thiab branding khoom siv tau ib qho xim tshwj xeeb xws li 'John Deere ntsuab.' Nws yog ib qho xim zoo heev thiab qhov hloov maj mam hloov ntawm nws yuav pom tau, txawm tias tus neeg siv nruab nrab.
Swatches muab tus qauv tsim thiab tus neeg mob nrog ib qho piv txwv ntawm seb qhov xim twg yuav zoo li ntawv. Xaiv cov xim xim xuav tom qab tau xaiv hauv Photoshop (los yog ib qhov kev pab cuam zoo sib xws) los xyuas kom muaj qhov xav tau. Txawm hais tias qhov xim rau on-screen yuav tsis raws nraim piv rau lub swatch, koj paub tias koj cov xim kawg yuav zoo li cas.
Koj tuaj yeem tau txais "pov thawj" (ib qho piv txwv ntawm daim ntawv luam tawm) los ntawm lub tshuab luam ntawv ua ntej tag nrho txoj hauj lwm khiav. Qhov no yuav ncua sijhawm, tab sis yuav ua kom cov xim sib tw.
Vim Li Cas Ua Haujlwm RGB thiab Hloov Rau CMYK?
Cov lus nug feem ntau tawm los ua vim li cas koj tsuas yuav tsis ua hauj lwm hauv CMYK thaum tsim kom muaj ib daim phiaj rau kev sau. Koj yeej ua tau, tab sis koj yuav tsum cia siab rau cov swatches ntau dua qhov koj pom ntawm qhov screen vim hais tias koj tus saib xyuas siv RGB.
Lwm qhov teeb meem uas koj yuav khiav tau yog tias qee qhov kev pab cuam xws li Photoshop yuav txwv cov haujlwm ntawm CMYK cov duab. Qhov no yog vim hais tias qhov kev zov me nyuam yog tsim rau kev yees duab uas siv RGB.
Kev tsim cov kev kawm xws li InDesign thiab Illustrator (ob lub tsev kawm ntawv ob qho tibsi) rau lub CMYK vim tias lawv tsim rau cov neeg tsim qauv. Rau cov laj thawj no, cov neeg tsim qauv nraaj feem ntau siv cov Photoshop rau cov duab thaij thiab coj cov duab los ua ib qho kev tsim tshwj xeeb rau kev npaj.
Cov chaw
David Bann. " Tag Nrho Cov Phau Ntawv Tshiab. "Watson-Guptill Ntawv Tshaj Lij. 2006.