Tsuav yog R + G + B peb xim sib tsoo proportionally, ntau tshaj kaum lab xim tuaj yeem tsim tawm.Vim li cas dub?Dub tuaj yeem tsim tau thaum qhov piv rau RGB sib npaug, tab sis nws yuav siv peb lub inks los tsim ib qho xim, uas tsis tuaj yeem ua tau los ntawm kev pom kev lag luam.Qhov tseeb, dub siv ntau heev hauv cov txheej txheem tsim, uas yog vim li cas plaub-xim luam ntawv siv.Muaj ib qho ntxiv: thaum cov xim dub uas tsim los ntawm RGB piv nrog cov xim dub ncaj qha nrog tus cwj mem, tus qub muaj qhov tsis muaj txiaj ntsig, thaum yav tas los xav tias hnyav dua.
1. Nrog rau txoj cai plaub-xim, nws yooj yim dua rau txhua tus neeg lees txais.Nws yog sib npaug rau plaub zaj duab xis thaum lub sijhawm tso tawm, thiab nws kuj yog sib npaug rau plaub txoj kab ntawm cyan, magenta, daj, thiab dub (C, M, Y, K) hauv cov channel hauv PHOTOSHOP.Kev hloov kho ntawm cov channel thaum peb ua cov duab yog qhov hloov pauv rau zaj duab xis.
2. Meshes, dots thiab ces kaum, tiaj nets thiab dai nets.Mesh: ib square inch, tus naj npawb ntawm cov dots tso, 175 mesh rau cov ntawv luam tawm, thiab 60 mesh rau 100 mesh rau ntawv xov xwm, nyob ntawm seb cov ntawv zoo.Kev luam ntawv tshwj xeeb muaj cov meshes tshwj xeeb, nyob ntawm qhov kev ntxhib los mos.
1. Hom ntawv thiab qhov tseeb ntawm daim duab
Niaj hnub nimno offset printing siv offset printing (plaub-xim overprinting), uas yog, xim daim duab muab faib ua plaub xim: cyan (C), khoom (M), daj (Y), dub (B) plaub-xim dot zaj duab xis, thiab tom qab ntawd luam PS phaj yog luam plaub zaug los ntawm kev tawm xovxwm, thiab tom qab ntawd nws yog cov khoom luam tawm xim.
Cov duab luam tawm txawv ntawm cov duab hauv computer zoo tib yam.Cov duab yuav tsum nyob rau hauv CMYK hom tsis yog hom RGB lossis lwm hom.Thaum tso tawm, daim duab hloov dua siab tshiab rau hauv dots, uas yog qhov tseeb: dpi.Qhov theoretical yam tsawg kawg nkaus ntawm cov duab rau luam ntawv yuav tsum ncav cuag 300dpi / pixel / nti, thiab cov duab zoo nkauj uas koj feem ntau pom hauv lub computer feem ntau xav tias zoo nkauj heev ntawm lub monitor.Qhov tseeb, Feem ntau ntawm lawv yog 72dpi RGB hom duab, thiab lawv feem ntau siv tsis tau rau kev luam ntawv.Cov duab siv yuav tsum tsis txhob tso tawm raws li tus qauv.Tsis txhob xav tias cov duab tuaj yeem siv rau kev luam ntawv vim tias lawv zoo heev los ntawm acdsee lossis lwm yam software, thiab lawv zoo heev tom qab magnification.Lawv yuav tsum tau qhib hauv photoshop, thiab cov duab loj yog siv los lees paub qhov tseeb.Qhov tseeb.Piv txwv li: ib daim duab nrog kev daws teeb meem ntawm 600 * 600dpi / pixel / nti, tom qab ntawd nws qhov loj me tam sim no tuaj yeem nthuav dav rau ntau dua ob npaug thiab siv yam tsis muaj teeb meem.Yog tias qhov kev daws teeb meem yog 300 * 300dpi, ces nws tsuas yog txo qis los yog qhov loj me tsis tuaj yeem nthuav dav.Yog tias daim duab daws teeb meem yog 72 * 72dpi / pixel / nti, ces nws qhov loj me yuav tsum raug txo qis (dpi qhov tseeb yuav loj dua), kom txog rau thaum qhov kev daws teeb meem dhau los ua 300 * 300dpi, nws tuaj yeem siv tau.(Thaum siv cov haujlwm no, teeb tsa cov khoom "Redefine Pixel" hauv kev xaiv duab loj hauv Photoshop kom tsis muaj dab tsi.)
Cov hom duab zoo ib yam yog: TIF, JPG, PCD, PSD, PCX, EPS, GIF, BMP, thiab lwm yam. Thaum kos duab, TIF xim, xim dub thiab dawb bitmap, EPS vector lossis JPG
2. Cov xim ntawm daim duab
Hais txog qee cov lus tshaj lij xws li kev luam tawm, overprinting, hollowing tawm, thiab cov xim xim hauv kev luam ntawv, koj tuaj yeem xa mus rau qee yam kev luam ntawv hauv paus.Nov yog qee qhov kev nkag siab uas yuav tsum tau them rau.
1 ,vub ud
Muaj ib txoj kab ntawm cov cim xiav nias rau ntawm lub phaj daj hauv qab, yog li ntawm lub phaj daj ntawm zaj duab xis, txoj hauj lwm ntawm cov cim xiav yuav tsum khoob.Qhov kev tawm tsam kuj muaj tseeb rau cov ntawv xiav, txwv tsis pub cov khoom xiav yuav luam tawm ncaj qha rau ntawm cov xim daj, cov xim yuav hloov, thiab cov cim xiav yuav dhau los ua ntsuab.
2. Tshaj tawm
Muaj ib txoj kab ntawm cov cim dub nias rau ntawm lub phaj liab, ces txoj hauj lwm ntawm cov cim dub ntawm lub phaj liab ntawm zaj duab xis yuav tsum tsis txhob hollowed.Vim tias cov xim dub tuaj yeem tuav tau txhua yam xim, yog tias cov ntsiab lus dub yog hollowed, tshwj xeeb tshaj yog qee cov ntawv me me, qhov yuam kev me me hauv kev luam ntawv yuav ua rau cov ntug dawb raug nthuav tawm, thiab qhov sib piv dub thiab dawb yog qhov loj, uas yooj yim pom.
3. Plaub-xim dub
Qhov no kuj yog ib qho teeb meem ntau dua.Ua ntej tso tawm, koj yuav tsum xyuas seb cov ntawv dub hauv cov ntawv tshaj tawm, tshwj xeeb tshaj yog cov ntawv luam me, tsuas yog nyob rau ntawm daim phaj dub xwb, thiab yuav tsum tsis txhob tshwm sim ntawm lwm daim phiaj peb xim.Yog tias nws tshwm sim, qhov zoo ntawm cov khoom luam tawm yuav raug luv nqi.Thaum cov duab RGB hloov dua siab tshiab rau CMYK cov duab, cov ntawv dub yuav dhau los ua plaub xim dub.Tshwj tsis yog tias tau teev tseg, nws yuav tsum ua tiav ua ntej cov yeeb yaj kiab tuaj yeem tso tawm.
4. Daim duab yog nyob rau hauv RGB hom
Thaum tso tawm cov duab hauv RGB hom, RIP system feem ntau cia li hloov lawv mus rau CMYK hom rau cov zis.Txawm li cas los xij, cov xim zoo yuav raug txo kom tsawg, thiab cov khoom luam tawm yuav muaj xim lub teeb, tsis ci, thiab cov nyhuv phem heev.Daim duab zoo tshaj plaws hloov mus rau CMYK hom hauv photoshop.Yog tias nws yog cov ntawv luam theej duab, nws yuav tsum dhau los ntawm kev kho xim ua ntej daim duab tuaj yeem siv.
Post lub sij hawm: Lub Xya hli ntuj-01-2021