Xim luam thiab luam ntawv teeb meem nthuav dav ntim

Xim luam thiab luam ntawv teeb meem nthuav dav ntim

Restore teeb meem lub thawv ntim khoom feem ntau tshwm sim nyob rau hauv qhov tseeb zus tau tej cov xim, xws li nruab nrab grey xim cam khwb cia, yog li cuam tshuam rau qhov zoo ntawm cov khoom, uas nyob rau hauv tas li ntawd mus rau lub ntaus ntawv nws tus kheej, muaj cov txheej txheem ntawm ntau lawm cov neeg ua hauj lwm teeb meem, cov lus nug tseem ceeb yog tsis ua lag luam ua kom muaj kev tswj hwm zoo thiab kev siv tus cwj pwm zoo ntawm cov xim xim.

Lub tswv yim thiab xav tau kev tswj xim

Kev tswj xim yog qhov kev nkag siab ntawm kev tswj xim yog tsim los ua kom muaj kev hloov pauv ntawm cov xim sib txawv hauv tag nrho cov duab hauv cov txheej txheem ntawm replication, kom ntseeg tau tias cov duab xim duab los ntawm kev tawm tswv yim mus rau qhov kev ua tau zoo ntawm cov tsos kom ze li sai tau, ua tiav cov ntaub ntawv kawg hauv kev sib raug zoo nrog cov xim luam tawm.

Luam cov duab uas yuav tsum tau ua kom tau cov duab, ua ntau theem ntawm kev ua haujlwm, kev sib cais xim, luam ntawv thiab lwm yam, ntawm txhua theem, yuav nthuav tawm cov ntaub ntawv xim raws li cov lus piav qhia tam sim no thiab xim rendering txoj cai siv lub cuab yeej. Sib txawv scan thiab tso saib cov khoom siv sib txawv ntawm cov xim qub qub. Tsis tas li ntawd, kev qhia ntawm cov xim sib txawv ntawm RGB peb xim zaub Secheng Secheng nrog plaub-xim luam ntawv inks, ua ke nrog cov software sib txawv los hloov RGB cov ntaub ntawv rau hauv CMYK kuj yog qhov tsis sib xws, siv cov ntawv sib txawv thiab tus cwj mem, qhov tshwm sim. prints tsis zoo ib yam. Yog li, xim luam tawm yuav tsum tau tswj hwm ntawm cov txheej txheem tsim khoom los ntawm ntau yam khoom siv thiab cov txheej txheem kev tswj hwm xim.

Cov ntsiab lus xim tswj

Xim profile (Profile
) yog tsim, lub hauv paus ntawm kev tswj xim, cov ntaub ntawv piav qhia xim yam ntxwv ntawm txhua lub cuab yeej tus neeg sawv cev tus yam ntxwv nkhaus raws li chromaticity, xim gamut tso zis tus yam ntxwv nkhaus, muaj kev tswj cov xim siv cov neeg sawv cev xim yam ntxwv hloov dua siab tshiab thiab txuam txhua qhov chaw xim xim.

Kev tswj xim yuav tsum tau ua raws li thaum lub sijhawm ua haujlwm ntawm cov txheej txheem ua haujlwm kom ua tiav cov txiaj ntsig xav tau. Kev tswj xim yog muab faib ua peb kauj ruam hauv txoj cai, tsuas yog hu ua "3C", piv txwv li, calibration (Calibration), characterization (Characterization) thiab hloov pauv (Conversion).

Calibration: Txhawm rau kom muaj kev ruaj ntseg ntawm cov xim thaum lub sijhawm hloov cov ntaub ntawv, tuaj yeem ua * thiab ruaj khov, xav tau cov tswv yim, tso saib thiab tso tawm cov cuab yeej calibration, kom ntseeg tau tias lawv ua haujlwm hauv lub xeev tus qauv. Input kho scanner los yog cov zoo li muaj xws li luminance, contrast, dub thiab dawb teb kho. Rau tib tus thawj los xyuas kom meej tias, txawm li cas los xij lub sij hawm scanning, koj yuav tsum tau txais tib cov ntaub ntawv duab.

Gamma qhov tseem ceeb los ntawm qhov ci, qhov sib piv, thiab xim kub ntawm tag nrho cov zaub ntawm cov zaub system tau teeb tsa kom pom tseeb xim. Kev kho cov zis muaj xws li lub tshuab luam ntawv kho, cov duab thaij duab, cov ntawv pov thawj thiab, tom qab kev hloov kho ntawm nws cov yam ntxwv, kom lub cuab yeej tuaj yeem tso tawm raws li tus qauv ntawm lub Hoobkas.

Characterization: Cov yam ntxwv ntawm cov cuab yeej rau kev kho tag nrho cov kaw, yog cov yam ntxwv ntawm cov txheej txheem. Cov profiles no yog cov yam ntxwv xim qhov chaw ywj pheej (PCS) los ntawm cov khoom siv txuas hniav hloov cov khoom siv xim xim.

Kev hloov pauv: Raws li lub hauv paus ntawm cov cuab yeej calibration ntawm lub system, siv cov ntaub ntawv piav qhia ntawm lub cuab yeej, tus qauv ntaus ntawv-yooj yim xim qhov chaw raws li qhov nruab nrab, kom ua tiav qhov kev hloov pauv ntawm cov cuab yeej xim xim. Txij li cov xim gamut tshaj li cov khoom tso tawm thawj, lub tshuab luam ntawv, cov xim nqaim gamut zaub, nws yog ib qho tsim nyog yuav tsum tau ntim cov xim gamut thaum hloov xim, muaj cov xim colorimetric xim gamut compression txoj kev, txheeb ze colorimetric txoj kev ICC raws tu qauv, saturation plaub txoj kev. projection method thiab sensory method.

Kev ua raws li kev tswj hwm xim

Cov ntsiab lus nrov, rau cov tuam txhab ntim khoom thiab luam ntawv ua cov xim tswj, qhov xav tau rau lub teeb pom kev zoo ib puag ncig; zoo xim profiles tsim software; advanced xim tswj system; txheem ntsuas ntsuas thiab cov cuab yeej ntsuas; xim txheem xim phiaj; txheem luam ntawv tswj; txheem tej thaj chaw deb digital pov thawj xim tswj; txo cov txheej txheem scan, cov koob yees duab digital, tswj xim; standard zaub screen soft proofing thiab kho. Nyob rau hauv ib qho kev qhia tshwj xeeb ntawm cov txheej txheem tswj xim, peb yuav tsum ua raws li cov hauv qab no: ua tib zoo npaj cov txheej txheem thoob plaws txhua txoj kev luam ntawv, kev tsim qauv, cov ntaub ntawv tswj kev tsim khoom, uas yog lub hauv paus ntawm ICC xim kev tswj daim ntawv thov.

Cov tuam txhab lag luam yuav tsum nruj me ntsis tsim cov ntaub ntawv tseem ceeb thiab cov khoom siv cov qauv zoo rau cov khoom zoo, ntawv, number case thiab lwm yam khoom siv thiab ntsuas qhov chaw teeb pom kev zoo, kev tsim cov ntaub ntawv tswj hwm tus qauv, thiab nug txhua tus kom nruj raws li cov qauv. Zaub, mos proofing, lub tshuab luam ntawv ICC profiles, luam ntawv xovxwm tsis yuav tsum tau standardized thiab quantified nyob rau hauv cov qauv thiab cov qauv, qhov twg tag nrho cov ntaub ntawv yuav qhia tau los ntawm kev ntsuam xyuas, sau cov ntaub ntawv los xyuas kom meej zoo. Peb complementary thiab interdependent, yog li xyuas kom zoo ib yam zoo, siab ntau lawm efficiency.

Prepress duab ua tshuab yog qhov zoo ntawm cov ntawv luam tawm lub hauv paus thiab cov txuas tseem ceeb. Txhawm rau saib xyuas cov kws tshaj lij, kev txheeb xyuas cov ntaub ntawv thiab kev ua cov ntaub ntawv digital yuav tsum ua kom zoo li plaub tus qauv rov ua dua los ntawm huab hwm coj (grey tshuav nyiaj li cas, rov tsim dua lub suab, kho xim, kho kom zoo dua qub) los coj kev ua haujlwm, thiab los ntawm plaub tus qauv ntsuas kev ntsuas tshwj xeeb. Cov ntaub ntawv luam theej duab ua tiav, peb xav tau cov khoom qub uas tsis yog hloov kho qhov tsis xws luag thiab kev ua haujlwm kos duab, cov ntaub ntawv luam tawm kom ntau dua qib, kom ua tiav zoo dua li qub. Rau tej thaj chaw deb luam ntawv lag luam, tej thaj chaw deb digital proofing Profile cov ntaub ntawv tswj, kom ntseeg tau ib tug zoo ib yam ob daim ntawv pov thawj xim.

Xaiv Xim Management System

Tam sim no nyob rau hauv kev ua lag luam ntau xim tswj system, xws li Adobe's Photoshop xim tswj system, Apple's ColorSync xim tswj system, Kodak cov xim tswj tshuab. Kev tswj cov xim sib txawv yog qhov sib txawv thiab muaj nws qhov zoo ntawm kev tswj cov xim ntawm cov cuab yeej, yog li cov tuam txhab yuav tsum xub txiav txim siab seb cov khoom siv twg yuav tsum tau txais cov xim zoo ib yam rau kev xaiv.

Qhov thib ob, peb yuav tsum txiav txim siab tus kheej piav qhia cov ntaub ntawv xim kev tswj hwm, nrog rau seb puas yuav txhawb nqa kev tsim cov profiles hauv cov kab ke qhib; yog tias lawv yog qhov kaw kaw, koj yuav tsum tsim kom muaj qhov profile los ntawm lub Hoobkas, yog li koj yuav tsum txiav txim siab seb peb puas tuaj yeem tsim kom tau cov nqi tsim nyog. Yuav tsum tsom lawv tus kheej qhov xwm txheej, lub kaw lus tuaj yeem yog *, cov cuab yeej txhawb nqa tuaj yeem ua tau ntau yam kev ua tau zoo, kev sib raug zoo thiab kev siv tau yooj yim tau muab piv thiab sim thiab muaj nyob rau hauv tib xim thawj qhov kev sim, uas tau pom nyob rau hauv cov txheej txheem tshwj xeeb hauv kev ua haujlwm. ib puag ncig, cov ntaub ntawv tuaj yeem tau txais txiaj ntsig zoo tshaj plaws.

Kev tswj cov xim zoo yog los xyuas kom meej tag nrho cov ntawv luam zoo, tab sis cov khoom kawg yog tiav los ntawm tus number case. Raws li ib qho ntawm tsib lub ntsiab ntawm luam ntawv number case, thiab muaj ib qho tseem ceeb ntawm cov txheej txheem luam ntawv thiab zoo. Ink kom raug siv thiab xa tawm, yog qhov tseem ceeb los xyuas kom meej cov xim txo. Kev siv tus cwj mem

Muaj pes tsawg leeg thiab cov yam ntxwv ntawm tus number case: Tus number case yog machined los ntawm ib tug aqueous dej-soluble resin, advanced pigments, kuab tshuaj thiab additives. Nws cov xim nyob ntawm qhov xwm ntawm cov xim, feem ntau xav tau cov xim nrog cov xim ci, tinting lub zog thiab zais lub zog haum, zoo kuj thiab siab dispersion. Txhawm rau kom tau txais kev luam ntawv zoo ntawm tus cwj mem, feem ntau nrog ntau yam khoom ntxiv rau cov inks los kho cov flowability, thiab ziab cov khoom ntawm tus number case viscosity raws li qhov sib txawv. Ntau yam tseem ceeb txiav txim siab qhov zoo ntawm tus cwj mem, siv tsis raug, yuav ua rau muaj teeb meem zoo, yuav tsum tau ua tib zoo saib xyuas hauv kev yuav khoom thiab kev siv tshuaj ntsuam xyuas los txiav txim siab qhov zoo ntawm nws lub xeev, thiab hloov kho raws li qhov xwm txheej, txhawm rau xyuas kom meej. nws zoo heev printability.

Hauv kev luam ntawv, tus cwj mem muaj qee qhov viscosity yog qhov tsim nyog rau kev tswj hwm kev sib kis, kev hloov ntawm tus number case. Yog li tus number case feem ntau tswj viscosity qib ntawm li 20 ± 5 vib nas this, qhov sib txawv ntawm viscosity yuav ua rau cov xim sib txawv ntawm cov xim luam ntawv. Cov txheej txheem tsim khoom tiag tiag, nyob ntawm qhov muaj pes tsawg leeg thiab qhov kub thiab txias ntawm cov kabmob, PH tus nqi ntawm lub tshuab lossis kho tus lej tswj ntawm 8.0 thiab 9.5.

Ink formulation: ink formulation mas yog hais txog cov xim ntawm tus number case deployment. Hauv ntim luam ntawv, xim number case siv los pom cov xim tiaj tus pleev xim rau feem ntau kom ua tiav ob qho txiaj ntsig ntawm kev pom thiab kev ruaj ntseg.

Cov xim sib txawv no, tsis tuaj yeem yog cyan, magenta, daj, thiab dub plaub-xim txheej txheem yog tsim, feem ntau tsis tuaj yeem pom kev siv tus cwj mem ncaj qha, raws li cov txheej txheem tsim khoom yuav tsum kos duab, sib txawv ntawm cov qauv ntawm tus number case qub tau txais. .

Ink xim sib piv yog raws li lub hauv paus ntsiab lus ntawm kev rho tawm xim txheej txheem, piv txwv li cov xim uas siv peb lub ntsiab xim tuaj yeem muab sib xyaw rau hauv qhov sib txawv ntawm qhov kev xa tawm, thiab xav txog peb yam tseem ceeb ntawm xim, lightness thiab saturation. Thaum siv los txiav txim siab cov xim ntawm tus cwj mem, tus cwj mem nws tus kheej thiab xav txog xim, gloss, xim lub zog, zais lub zog thiab lwm yam raws li qhov tseeb ntawm cov txheej txheem luam ntawv, number case thickness, thiab lwm yam luam ntawv substrate.

Xim Technology

Kev tshuaj xyuas ntawm cov xim qub: xim toner yog cov ntaub ntawv rau cov qauv, txhawm rau txo qhov muag tsis pom kev toning, cov xim ntawm cov ntaub ntawv yuav tsum xub muab tshuaj ntsuam xyuas qhov xav tau thiab qhov sib piv ntawm cov xim xim xim xim xim. Thawj txoj kev tsom xam yog tsuas yog siv cov cuab yeej ntsuas xim thiab tib neeg lub qhov muag tshaj qhov sib xyaw xim. Kev txiav txim siab piv yog yooj yim dua thiab siv tau thawj inks, tus number case dawb thiab number case ntawm peb xim thawj yuav raug xam raws li feem pua ​​​​cov ntsiab lus ntawm thawj xim dot cheeb tsam cim los ntawm luam ntawv chromatography chromatogram.

Xim: raws li qhov sib piv, ib qho me me ntawm cov xim xim xim xim yuav tsum hnyav cov qauv. Nco ntsoov tias thawj xim number case txuas ntxiv sib piv, thaum ob qho tib si xim yog ze, nws yog qhov tsim nyog rau kev hloov pauv tus number case drawdown drawdown contrast daim ntawv, thiab lwm yam, kom txog rau thaum ob xim. Thaum qhov sib piv ntawm cov xim number case yuav tsum tau ua si ib tug niaj hnub thiab number case txheej nyias li sai tau, thiaj li yuav xyuas kom meej qhov tseeb ntawm cov xim qauv hue, daim ntawv yuav tsum yog tib daim ntawv siv nyob rau hauv printing. Kho qhov ci thiab saturation yog ua tiav los ntawm kev ntxiv tus cwj mem dawb thiab tus cwj mem dub. Thaum yuav tsum tau ntxiv cov xim dawb, xim dub, yuav tsum tau them nyiaj tshwj xeeb rau qhov tseeb ntawm qhov hnyav.

Tom qab cov ntaub ntawv ncav cuag tus cwj mem tawm ntawm qhov yuav tsum tau xa mus, qhov sib piv yuav raug tsim los ntawm ntau tus number case. Tus naj npawb ntawm txoj haujlwm faib tus lej ntawm tus cwj mem siv feem ntau yog txiav txim siab los ntawm hom ntawv tshwj xeeb, duab loj, luam ntawv khiav thiab ntau npaum li cas ntawm qhov poob, thiab qhov ntau tsis tsawg ntawm txoj cai.

Cov ntaub ntawv: tom qab ua tiav ntawm kev hloov tus cwj mem siv rau hauv qhov sib piv ntawm cov xim number case, kua roj vanish, roj qhuav, number case type, kom muaj nuj nqis, thiab lwm cov tuam txhab cov ntaub ntawv sau npe kom ntxaws, raws li kev siv los pab txhawb rau yav tom ntej nrog number case.

Lwm yam kev txiav txim siab: Hauv kev txheeb xyuas cov ntaub ntawv, cov xim sib piv, zoo dua yog nqa tawm ntawm lossis ze li ib txwm nruab hnub ci qhov chaw, yuav tsum tau muab sau tseg tias thaum tus number case zaj duab xis tom qab ziab colorimetrically, thiaj li yuav txo qhov pom qhov yuam kev. Thaum cov kab xim nyob ze rau cov xim thawj coj los siv ib qho xim xim lossis lwm yam inks, xim inks siv cov xim ntau dhau, ci ntsa iab thiab saturation zuj zus, yog li cuam tshuam rau cov ntawv luam tawm. Yog li thaum ob peb xim cwj mem li ua tau, nrog rau kev xaiv zoo tshaj plaws rau cov chaw tsim khoom ntawm cov khoom siv number case.

Txhawm rau kom nkag siab txog cov khoom siv hauv lub Hoobkas txhua hnub ceev thiab luam ntawv toner siab, thiab tswj cov viscosity number case. Kev sib txawv ntawm kev luam ntawv ceev thiab lub siab luam ntawv ntawm cov xim ntawm cov khoom luam tawm yuav muaj qhov sib txawv, yog li cov ntawv luam ntawv zoo ntawm cov ntawv luam tawm qis yuav tsum qhib rau qhov kev ceev ntawm daim ntawv yuav tsum tau kuaj dua, kom tsis txhob muaj xim. , ua rau pov tseg.

Tom qab tus number case hloov tawm ntawm lub tshuab luam ntawv yog tias nws pom tias muaj qhov yuam kev nrog cov qauv xim qub yuav tsum raug kho. Rau cov xim hloov xim tus cwj mem, tus cwj mem rau cov menyuam kom huv si kom tsis txhob muaj kev ntxuav tsis huv uas tsim los ntawm cam khwb cia. Spot xim inks tom qab luam tawm qhov seem, tseem nyob ntawm qhov xim ntawm cov ntaub ntawv tshiab los hloov chaw, tab sis feem ntau saturation ib nrab grey, tshwj xeeb tshaj yog cov number case ntau dhau los ntawm tus ciav dej kom rov qab tau, kev hloov pauv yuav muaj emulsified lossis luam tawm.