Ua kom ntxaws txog kev tswj xim ntawm cov txheej txheem luam ntawv
Peb yog ib lub tuam txhab luam ntawv loj hauv Shenzhen Tuam Tshoj. Peb muaj cov phau ntawv luam tawm, phau ntawv xov xwm luam ntawv, phau ntawv luam ntawv, phau ntawv nyuaj, phau ntawv luam tawm, phau ntawv luam tawm, phau ntawv luam tawm, lub thawv ntim, daim qhia ntawv, txhua yam ntawm PVC, cov ntawv luam tawm, ntawv sau cia, hom tshwj xeeb ntawv xim luam tawm khoom, kev ua si cardand li ntawd.
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Yuav kom thwj thiab tsim daim qauv kev tsim kom zoo dua qub kom lub xim ntawm tag nrho cov txheej txheem ntawm kev ua kom zoo ib yam, nws yog qhov tsim nyog rau kev tswj kev hloov xim thiab kis los ntawm kev tswj xim. Daim ntawv no qhia txog kev siv cov xim tswj hauv kev luam ntawv.
Kev tswj xim yog hais txog kev siv software thiab kho vajtse. Cov xim no tau thiab tswj tsis tau thiab kho thaum lub sij hawm tsim cov txheej txheem los xyuas kom meej xim. Kev tswj xim yog ua raws li qhov chaw chromatic raws li qhov siv xim qhov chaw, siv cov ntaub ntawv los sau los yog tso zis xim nta, thiab siv daim ntawv thov software thiab lwm tus neeg xim software raws li tus neeg siv lub cuab yeej tswj xim. Los ntawm cov kev tswj xim xim, ntau lub phenomena xws li xim distortion nyob rau hauv cov txheej txheem luam ntawv yuav zoo tu.
1. Lub hom phiaj thiab kev ua haujlwm ntawm kev tswj xim
1.1, lub homphiaj ntawm kev tswj xim
Lub hom phiaj ntawm kev tswj xim yog kom muaj xim sib txawv ntawm cov khoom sib txawv rau ntau hom, cov koob yees duab, cov tshuab luam ntawv, cov pov thawj, cov tshuab luam ntawv, thiab lwm yam, kom cov xim sib txawv ntawm cov lus qhia sib txawv, . Cov nyhuv yog thaum kawg ua kom muaj kev sib tw zoo ntawm cov xim ntawm kev luam theej duab.
1.2, lub luag haujlwm ntawm kev tswj xim
Kev tswj xim yog ua haujlwm, paub meej thiab paub tseeb. Los ntawm kev tswj xim, kev tsim peev xwm tsim tau kev kho kom zoo dua qhov tau "qhov koj pom yog dab tsi koj tau txais" kev nraaj duab. Qhov teebmeem tshwj xeeb yog raws li nram no: ua ntej, kom phim qhov kev txuam xim; thib ob, ua kom muaj xim zoo sib xws rau kev tshaj tawm; qhov thib peb, pauv lub voj voog ntau lawm, txo qhov tsis muaj nqis; plaub, los xyuas kom meej qhov zoo ntawm qhov khoom tiav; Qhov thib tsib, cov xim pom hauv cov luam digital luam tawm los ntawm tus saib los yog cov pov thawj digital yog tib yam nkaus li qhov kawg luam tawm.
2, qhov kev siv ntawm kev tswj xim
Kev tswj xim yuav tsum muaj peb kauj ruam. Cov kauj ruam no peb yuav tsum ua kom tiav raws li qhov sib txeeb kom sib haum ua kom tiav qhov kev xav tau. Cov kauj ruam peb yog cov cuab yeej kev kho mob, qhov kev ntaus ntawv, thiab qhov chaw hloov xim (Hloov Hloov), hu ua "3C". Peb kauj ruam yog piav raws li hauv qab no.
2.1, khoom kho (Calibration)
Raws li qhov hais tias mus: "Yog tias tus neeg ua haujlwm xav ua ib yam dab tsi zoo, nws yuav tsum tau ua ntej ntsej nws rab phom." Yuav kom tswj tau qhov kev ruaj ntseg thiab kev cia siab ntawm kev hloov xim thiab kev hloov dua siab tshiab, ntau yam khoom siv, cov twj siv thiab cov twj tso tawm yuav tsum tau kho thiab kho ua ntej cov luam tawm kom paub meej tias cov cuab yeej no yeej ua haujlwm. ruaj khov hauv lub xeev.
Ib tug yog qhov kev kho ntawm lub ntaus ntawv ntaus tawm. Kev kho ntawm qhov ntaus tawm tswv yim hais txog kev hloov thiab kev ua kom zoo ntawm lub ci ci, qhov sib txawv, thiab dub thiab dawb liaj teb ntawm tag nrho cov tswv yim siv. Piv txwv li, tom qab kho qhov scanner, lub scanner yuav tsum pib rau xoom. Nyob rau lub sij hawm no, muab ib daim tseem cia rau kev sim, thiab cov ntaub ntawv tau txais yuav tsum yog tib yam tsis hais txog kev xa roj txhua lub sijhawm.
Qhov thib ob yog qhov ntsuas ntawm cov khoom ntaus ntawv. Thaum twg cov zaub kom yog, xyuas kom meej tias cov yam ntxwv tso saib ntawm cov zaub no zoo ib yam li qhov zoo tagnrho parameter qhov teev nyob rau hauv cov ntaub ntawv ntaus ntawv, yog li ntawd cov ntaub ntawv qhia tau meej tias cov xim hauv daim tseem ceeb.
Qhov thib peb yog qhov kev kho ntawm cov khoom tso tawm. Kho cov twj tso zis yog qhov kawg thiab tseem ceeb tshaj plaws nyob rau hauv tag nrho calibration txheej txheem. Calibration ntawm cov khoom tso tawm muaj xws li calibration thiab hloov ntawm lub tshuab luam ntawv, dluab, tshuab luam ntawv, thiab cov pov thawj. Nws yog qhov tsim nyog kom rov qab kho cov yam ntxwv ntawm cov khoom raws li tus nqi tau los ntawm lub chaw tsim khoom siv, uas zoo ib yam nrog cov yam ntxwv ntawm cov khoom thaum lub sijhawm khoom xa tuaj. Tsis tas li ntawd, nws yog ib qho tseem ceeb uas yuav tsum tau them nyiaj tshwj xeeb rau txoj kev kuaj xyuas nruj ntawm daim ntawv thiab tus cwj pwm siv rau cov khoom siv.
2.2, kev ntaus phoojywg (Characterization)
Tom qab cov cuab yeej muab kho tiav, tus ntaus ntawv yog tus cwj pwm, uas yog, cov yam ntxwv ntawm tag nrho cov cuab yeej raug kaw hauv kev nthuav dav. Txawv cov khoom sib txawv sau tseg. Tus cwj pwm ntawm cov khoom ntaus ntawv thiab cov khoom siv tau ua tau siv tus qauv siv chromaticity tus nqi, thiab tus chromaticity characterization curve yog ua raws li qhov chromaticity tus nqi ntawm lub rooj thiab cov nqi chromaticity generated los ntawm cov khoom siv input; Characterization yog kev siv ntawm ib daim ntawv qhia chaw rau lub ntsiab lus tso tawm cov lus tso tawm ntawm lub tshuab ntaus ntawv.
Rau lub hauv paus ntawm kev ua tus chromaticity cwj pwm ntawm tus cwj pwm kev ntaus ntawv, cov cwj pwm cov ntaub ntawv ntawm lub tswv yim ntaus ntawv yog ua tawm tsam xim qhov chaw ywj siab ntawm lub cuab yeej; zoo sib xws, qhov ua cim ntawm cov twj tso zis tawm yog tsim los ntawm kev siv cov cwj pwm gamut yam ntxwv ntawm cov zis tawm. Cov ntaub ntawv, uas yog cov choj los ntawm cov cuab yeej xim xim rau tus qauv ntaus ntawv-ywj siab qhov chaw.
Feem ntau, cov xim profile ntawm lub tshuab ntaus ntawv hauv ib lub lag luam luam tau ua ob txoj hauv kev. Ua ntej, thaum yuav khoom siv, qhov chaw ua hauj lwm yuav muab ib qho profile uas ua tau raws li cov kev tswj xim ntawm lub cuab yeej. Qhov thib ob yog los siv lub tswv yim tshwj xeeb los tsim cov software thiab tsim kom muaj xim zoo li cov ntaub ntawv raws li qhov teeb meem ntawm cov khoom uas twb muaj lawm, tab sis txij li thaum txhua lub tshuab, cov khoom thiab txheej txheem yuav hloov lub sijhawm, nws xav tau nyob rau ntawm cov haujlwm. Tom qab ntawd, cov ntaub ntawv xim yog rov tsim kho rau qhov tseeb xim coj los siv.
2.3, qhov chaw hloov xim (Hloov Chaw)
Tom qab kev kho thiab ntaus cim tus ntaus ntawv, tus qauv ntaus ntawv-ywj siab qhov chaw siv yog nruab nrab, thiab xim qhov chaw ntawm txhua lub xov tooj yog raug xa tawm raws li cov ntaub ntawv piav qhia ntawm lub cuab yeej. Cov xim gamut ntawm cov twj tso zis yog zuj zus dua li ntawm qhov ntaus ntawv thiab cov khoom siv. Cov xim gamut yog compressed thaum lub caij hloov xim. Hom kev qhia muaj xws li kev chromaticity, tus txheeb ze chromaticity, ua saturation, thiab hnov. Plaub txoj kev.
Thawj yog qhov xim Colorimetric meej. Thov cov xim kom tsis txhob muaj xim txaus kom cov xim ntawm lub tso zis tso kom pom tseeb tias cov xim hauv cov xim tsis hloov tom qab qhov hloov dua siab tshiab, tiam sis yuav hloov cov xim dhau qhov tso tawm xim gamut nrog cov xim ntawm lub ciam dej ciam. Hom no feem ntau yog siv thaum tso tawm gamut nyob ze rau ntawm cov lus teb gamut.
Qhov thib ob yog qhov xim colorimetric sib thooj. Txoj kev chromaticity tus txheeb ze yog ib txoj kev hloov ntawm txhua lub xim raws li tus taw tes dawb calibration los ntawm kev hloov tus taw tes dawb calibration, thiab tsis hlob cov xim gamut. Thaum cov gamut ntau yog kaw, qhov no feem ntau yog siv rau qhov chaw hloov xim.
Qhov thib peb yog qhov kev ua kom haum sab. Qhov kev ua kom zoo tshaj yog kev tsis sib haum xeeb ntawm cov xim tsis sib thooj, thiab qhov ua kom pom tseeb yog nyob rau ntawm kev ua kom muaj kev kub ntxhov. Lub hom phiaj uas tau ua los ntawm txoj kev ua lub ntsiab lus tsis yog kom ua ncaj ncees rau kev sau ntawv, tab sis kom tau ib qho xim uas muaj cov khoom siv tsawg.
Qhov thib plaub yog kev xav. Thaum uas siv xim nqaij tawv kom zoo nkauj, tsis yog siv cov cim ntoo xwb tiam sis tseem yuav tsum tau ua kom muaj kev sib raug zoo ntawm cov xim. Qhov tsis taus yog kho kho qhov sib txawv ntawm qhov sib txawv ntawm cov xim tawm ntawm cov zis tawm, thiab siv zog rau cov xim hauv lub siab.