Yuav ua li cas yog CMYK? Plaub xim Halftone (Cyan, Magenta, Daj, Ntsiab xim). CMYK thiab RGB

Muaj coob tus tau hnov cov CMYK tsiaj ntawv, uas yog siv nyob rau hauv lub printing kev lag luam, tab sis tsis paub yuav ua li cas nws sawv. Yuav kom to taub li cas cov plaub xim sawv cev rau cov neeg cov tsiaj ntawv thiab dab tsi cov khoom nws autotype pab peb tsab xov xwm.

Nyob rau hauv lub ntiaj teb no ntawm kho qhov muag illusions

Ua ntej peb yuav nrhiav tau tawm yog dab tsi CMYK, koj yuav tsum to taub qhov xwm ntawm xws li ib tug txuj ci tseem ceeb, xws li tej yam ntuj tso lub teeb. Ob peb cov neeg xav hais tias cov xim tshwm sim tsuas yog nyob rau hauv lub system, uas yog qhov tseem ceeb Cheebtsam ntawm lub spectators, teeb pom kev zoo thiab tej khoom. Nyob rau hauv no kho qhov muag txuj ci tseem ceeb tsis xaus muaj. Piv txwv li, txawm hais tias ntshiab lub teeb dawb peb tau perceive raws li ib tug tsis muaj kob, nws muaj tag nrho cov xim ntawm lub spectrum pom mus rau tus tib neeg lub qhov muag. Nws muab nws lub multicomponent kawm xim. Thaum lub teeb dawb nce mus txog cov kev kawm, nws saum npoo hais txog ntawm nws cov khoom, absorbs tej xim. Thaum lub seem reflected thiab tsim nyob rau hauv lub tuav xaav ntawm daim duab yuav tsum tau faded los yog kaj.

Tu tub tu kiv hauv cov ntawv nyeem thiab cov duab rau lub cev tawm ntawm lub taw tes ntawm view ntawm tib neeg xaav

Cov ntawv uas luam ntawv yog feem ntau chiv dawb thiab muaj lub peev xwm los sawv cev rau tag nrho cov spectrum ntawm tshav ntuj xim, uas nws ntog. Cov zoo dua qhov zoo, lub siab dua qhov chaw thiaj zog. Nyob rau tib lub sij hawm, cov xim - ib yam khoom uas absorbs tej xim. Yog hais tias nws yuav ncua lub rays ntawm tag nrho cov wavelengths tsuas yog cov neeg uas sib haum mus rau lub liab feem ntawm cov spectrum, lub hnub ci txiv neej pom tsuas yog ib lub qob. Yog hais tias peb saib nyob rau tib lub xim nyob rau hauv lub glow ntawm cov kob xiav lub teeb, nws yuav zoo li peb dub.

Thaum cov dawb daim ntawv yog muaj ntaub ntawv ntau yam xim, thiaj li tus nqi ntawm cov thaws rov los xim. Piv txwv li, los ntawm thov ib tug xiav xim ntawv, peb yuav tsim ib tug teeb meem uas nws tsis yog tsuas absorbs nws.

Muaj ob peb ua ke ntawm cov xim, thaum tov uas muaj peev xwm muab tau xim, muaj peev xwm kiag li nqus tag nrho cov rays reflected los ntawm daim ntawv, uas yog. E. Kom nws dub. Nyob rau hauv kev, nws yog txaus mus thov cov nyiaj tib magenta, cyan thiab daj pigments.

Nws yuav tsum tau muab sau tseg hais tias qhov no xim qauv tsis xav tau ib tug dawb xim, raws li qhov no xim ntawm daim ntawv nws tus kheej. Nyob rau hauv cov cheeb tsam ntawm cov duab uas nws yuav tsum tau, tsis muaj pigments yog tsuas yog tsis muaj ntaub ntawv, tawm hauv tus nto huv si.

rho qauv

Ntawv thiab lwm yam luam teeb meem - yog qhov chaw uas yuav muaj kev cuam tshuam lub ntuj los yog khoom neeg tsim teeb. Obviously, nws yog ntau yooj yim rau xam, ntau npaum li cas ntawm nws nyob rau hauv daim ntawv ntawm cov rays hloov nws cov kev taw qhia rau cov opposite tshaj yuav ua li cas nws nqus. Yog li, yog tias rho tawm los ntawm cov 3 thawj xim ntawm dawb, piv txwv li. E. Basic RGB Cheebtsam, nws yuav triple complementary xim CMY.

Yog vim li cas «K», es tsis txhob ntawm «B»

Feem ntau cov neeg uas tsis paub dab tsi lub CMYK, qhov no tsiaj yog ruam tag. Tom qab tag nrho, raws li tau hais, qhov no xim qauv siv 4 txawv pigments. Peb ntawm lawv yog hu ua los ntawm lawv cov thawj tsab ntawv. Nyob rau hauv tas li ntawd, dub yog siv. Ib tug version hais tias K - ib tug tsiaj ntawv ntawm cov lus Askiv lo lus dub. Nws twb siv es tsis txhob "nyob rau hauv" rau xa mus rau ib tug dub zaj duab xis nyob rau hauv lub printing kev lag luam, tsis yuav tsis meej pem nrog tib los ntawm tsab ntawv ntawm lub RGB qauv (Eng. Blue). Qhov tseeb hais tias kev xim correctors manipulated RGB_CMYK_Lab 10 raws thiab siv tag nrho cov muaj nyob rau cov xim rau tej qhov chaw. Yog li, thaum uas siv cov tsiaj ntawv rau lub plaub-autotype, cov lus "kev txiav txim nrog cov channel B» yuav tsum tau meej rau ib yam ntawm cov qauv nyob rau hauv lo lus nug, nws yuav tsis yooj yim.

Yog lwm saib. Raws li qhov no version, «K» - ib tug tsiaj ntawv ntawm lo lus "qhov tseem ceeb", piv txwv li lub tseem ceeb phaj ... Lawv xa mus rau cov ntawv luam daim ntawv ntawm dub number case uas yog muaj ntaub ntawv rau sab saum toj ntawm lub twb tso peb yav dhau los xim.

Nyob rau hauv tas li ntawd, ib txhia kws yog inclined mus ntseeg hais tias lub "K" yog lub German hais lus thiab lub ntsiab lus ntawm cov lo lus kontur. Nyob rau hauv dej siab ntawm tus tseeb version yog qhov tseeb hais tias nws yog tshuaj Hmoob dub zaj duab xis nyob rau hauv lub printing ua lag ua luam hu ua contouring.

Yuav ua li cas koj hais nyob rau hauv Lavxias teb sab

Txawm hais tias CMYK xim qauv twb tau muab siv rau ib ntev lub sij hawm, muaj coob tus neeg tsis paub hnub no yuav ua li cas lub suab no tsiaj. Kws txawj qhia kom hais rau sawv daws mloog, raws li "C-Em-Wye Kay." Nyob rau hauv tas li ntawd, muaj cov tswv yim pom zoo yuav tsum tau hu ua 4-xim avotipiyu "B-Mac", raws li zoo raws li siv lub sij hawm "tag nrho xim" los yog "cov txheej txheem inks".

RGB, CMYK: dab tsi yog qhov txawv

Yog hais tias CMYK tswvyim yog siv nyob rau hauv lub printing ua lag ua luam, cov liab-ntsuab-xiav qauv yog siv rau zaub rau TVs, saib thiab lwm yam lus. Raws li peb paub? lawv muaj xws li pixels uas yog me dots, txhua tus uas muaj ib tug backlight 3 thiab, nyob ntawm seb lub brightness ntawm txhua illuminates tus yam ntxoov ntxoo ntawm cov xim.

Thaum cov duab luam tawm los ntawm lub computer, cov tshuab luam ntawv los yog offset xovxwm li no siv CMYK xim (cyan, magenta, daj, qhov tseem ceeb xim). Yog li ntawd, saib cov duab nyob rau hauv RGB tswvyim tej zaum yuav txawv muaj nuj nqis los ntawm dab tsi koj tau txais rau ntawm daim ntawv los yog lwm yam yam khoom.

Yog vim li cas rau cov duab hloov txoj kev los ntawm ib tug xim mus rau lwm lub Circuit Court uas tsuas muab tsis tau ib puas feem pua hit. Tseeb, muaj ntau RGB xim tsuas tsis nyob ua ib ke thiab yuav tsis muab los siv nyob rau hauv ib tug palette CMYK (muaj xim tseem ceeb rau qhov no system, koj twb paub). Lawv hloov nrog lub ze tshaj Hawj txawm, tab sis qhov sib txawv yog tseem heev pom txawm mus rau lub liab qab qhov muag.

Yog vim li cas nyob rau hauv lub CMYK 4 xim, thiab RGB tsuas yog 3

Raws li koj paub, cov dub number case yuav npaj los ntawm nws cov magenta, daj, thiab xiav, noj nyob rau hauv sib npaug zos proportions. Txawm li cas los, rau ib co yog vim li cas peb yuav tsum siv ib tug ntxiv xim. Yog vim li cas vim li cas Plaub-autotype yuav siv cov dub xim, ob peb tug. Cov lawv:

• ib tug sib tov ntawm daj, magenta thiab cyan pigments, nyob rau hauv kev xyaum, ua ib tug moj xim av xim ;
• txheej txheem inks tsis muab cov stability ntawm Hawj txawm saturation thiab grey qhov chaw ntawm lub duab;
• thaum outputting ib tug heev me me dub qhov chaw ntawm cov ntawv nyeem los qauv tsis siv xws xim tsub kom kev pheej hmoo ntawm insufficiently leej coincidence ntawm cov ntsiab lus ntawm daim ntawv thov ntawm cyan, magenta thiab daj xim;
• dub xim (feem ntau cov pa carbon dub) yog cheaper npaum li dua li lwm cov xim tsev;
• nws ntawm 100% daj, magenta los yog cyan xim nyob rau ntawm ib taw tes rau hauv cov ntaub ntawv ntawm inkjet sufficiently xav wets daim ntawv, nws deforms thiab tsub kom lub sij hawm yuav tsum tau rau kom qhuav.

lub tom kawg hom teeb meem tshwm sim nyob rau hauv tus txheej txheem ntawm offset printing. Nyob rau hauv tas li ntawd, nyob ntawm seb cov ntaus ntawv? Muaj tej yam kev txwv nyob rau hauv tus nqi ntawm cov xim muaj hlau. Nyob rau hauv ib co printers, nws muaj peev xwm txawm yuav loj heev thiab ncav cuag 260-280%. Qhov no txhais tau tias ib tug "tiag tiag" dub nyob rau hauv xws printing pab kiag li lawm npaj los ntawm nws pigments tsis yooj yim sua. Yog li ntawd, siv lwm dub xim.

Yuav ua li cas yog CMYK-luam

Thaum printing los yog txhob lo lo ntxhuav-screen printing rau ntawm ib qho offset printing tshuab, ib tug xim laser tshuab luam ntawv, thiab thiaj li nyob. E. Nws yog ua tau nyob rau txhua kis, los yog siv ib txoj kev number case txheej thickness, los yog tawm hauv lub substrate lawm thiab huv si. Yog li, rau kis rasterized Halftone duab. Nyob rau hauv lwm yam lus, nws yog sawv cev raws li ib tug txheej ntawm dots ntawm plaub xim. Cov kev ceev ntawm qhov kev tso kawm thiab txiav txim seb qhov feem pua ntawm kev siv ntawm txhua tus ntawm cov xim. Thaum ib tug deb ntawm lub cev nruab nrab (daim ntawv, zaj duab xis, thiab lwm yam) Cov ntsiab lus uas nyob ze rau txhua lwm yam, hauj lwm ua ke, thiab cov tib neeg qhov muag pom cov yam Hawj txawm. RIP yog:

• amplitude thaum lub xov tooj ntawm cov ntsiab lus yog qhov, tab sis mas nws txawv lawv loj;
• stochastic thaum tsis muaj ib tug tsis tu ncua point qauv;
• zaus, tawm tswv yim txuag loj thaum hloov tus nqi ntawm cov ntsiab lus.

Yuav ua li cas tsis mus yuav chim thaum koj sau cov duab nyob rau lub tshuab luam ntawv

Niaj hnub no, printers yog nyob rau hauv ntau qhov. Lawv yog siv rau cov kev npaj ntawm homework, sau ntawv lub sij hawm cov ntaub ntawv, tsab ntawv, thiab thiaj li nyob. Heev feem ntau, lub tshuab luam ntawv kuj sim mus sau cov duab. Txawm li cas los, feem ntau tej me nyuam xaus chim siab vim hais tias kaj daim duab nyob rau qhov kev tshuaj ntsuam yuav faded nyob rau hauv cov tsab ntawv rau ntawm daim ntawv. Tag nrho cov teeb meem nyob rau hauv cov neeg txhais lus ntawm cov duab los ntawm RGB rau CMYK qauv qauv.

Mus saib yuav ua li cas lub yees duab yuav zoo li rau ntawm daim ntawv, koj siv tau cov kev pab cuam tsev av Photoshop. Nyob rau hauv cov ntaub ntawv no, daim duab yuav tsum edited nyob rau hauv thiaj li yuav tau qhov zoo tshaj plaws tshwm sim.

Tam sim no koj paub tias dab tsi lub CMYK, lub acronym sawv thiab dab tsi shortcomings nws muaj. Feem ntau cov yuav, nyob rau hauv lub nyob ze yav tom ntej nyob rau hauv nws qhov chaw los ib tug ntau tshaj xim tswvyim uas yuav txhim kho qhov zoo ntawm cov duab printing.