Yuav ua li cas los tswj kev tswj xim
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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1. Yuav ua li cas ua tau ib qho profile ICC? Kuv tuaj yeem nrhiav cov kev pabcuam uas siv rau kev tswj xim thiab cov ntaub ntawv hauv cov ntaub ntawv no?
Kev tswj xim, txhua yam khoom siv (xws li cov luam yeeb, cov koob yees duab, cov duab, cov tshuab luam ntawv, thiab lwm yam) yuav tsum tau nws cov profile. Txhua qhov profile ntawm cov khoom siv no yog qhov ntaus lub xim cov ntaub ntawv nrog ib qho chaw xim xim thiab muab txuas rau lawv los tsim ib qho kev hloov tiav. Thiaj li tsim cov profiles, ib daim phiaj duab rau kev ntsuas yuav tsum tau ua. Piv txwv li, ib qho duab scanner siv tau qhov nruab nrab-qhov loj me, tab sis nws yog qhov zoo tshaj plaws los siv IT8.7 / 2 txheem xim nplai rau cov kws ua haujlwm siv cov lus IT8.7 / 1. Tus qauv xim nplaum yog siv los luam theej duab. Lub tshuab luam ntawv siv cov luam tawm uas muaj cov xim rau sab nraud, dua li IT8.7 / 3, uas muaj 928 xim tho. Daim duab no yuav tsum muaj lub hom phiaj ntawm cov xim ntau dua.
Cov ntaub ntawv tsim cov software tsim muaj nrog cov duab xeem. Yuav kom tsim kom muaj lub tshuab luam ntawv thiab tso duab saib, peb yuav tsum ntsuas lub suab paj nruag thiab txig ntawm lub tshuab thiab cov koob yees duab. Tseem yuav tsum muaj cov xim tshwj xeeb uas yog muab los ntawm Macbeth rau kev ntsuam xyuas ntawm cov digital. Lub koob yees duab. Tom qab ntawd, yuav tsum siv cov cuab yeej xim los ntsuas cov duab no, thiab los ntawm cov kev ntsuas no, cov ntaub ntawv ntsuas raug muab qhia rau tus software ua ib qhov profile.
Feature file creation software yog muaj nyob ntawm Agfa, Fuji, Gretag-Macbeth, Heidelberg, Kodak, Monaco thiab lwm tus. Cov cuab yeej ntsuas tau muaj los ntawm cov tuam txhab xws li Gretag-Macbeth, X-rite, Alwan Color Expertise, Xim Xwm.
Yuav kom muab cov ntaub ntawv sib txawv ntawm cov khoom siv sib xyaw ua ke, yuav tsum muaj xim xim module (CMM). Lub CMM pub rau cov duab yuav tsum hloov dua siab tshiab ntawm cov cuab yeej sib txawv thiab tsim cov xim tseeb. CMM tseem ceeb tshaj plaws yog kev sib xyaw cav rau kev sib xyaw ua ke (LUT). Cov CMMs uas ua los ntawm cov tuam txhab txawv yog txawv. ICC tsis ntsees pom zoo kom siv CMM los siv, vim tias qee qhov CMMs khaws cov lus qhia tshwj xeeb hauv qhov profile. , ntau yam muaj txiaj ntsig raws li daim ntawv thov tshwj xeeb. Muaj ntau yam RIPs muaj xws li CMM thiab Photoshop qhov kev pab cuam uas cia cov neeg siv kev sib txuam ua ke ntawm cov ntaub ntawv tawm suab, xws li Photoshop kuj muaj xws li CMM. Lub CMM hauv Kua yog qhov tseem ceeb ntawm kev khiav hauj lwm, hu ua ColorSync, thiab CMM nyob rau hauv lub qhov rais yog ICM. Feem ntau cov software muag khoom uas ua rau cov ntaub ntawv profile kuj siv tau lawv cov software los tsim cov CMMs.
2. Qhov chaw tswj xim twg yog siv hauv kev tswj xim? PCS yog dab tsi?
Hauv kev tswj xim, cov ntaub ntawv xim ntawm ib tus duab yog hloov dua siab tshiab los ntawm ib qho chaw xim rau lwm tus, thiab muaj ob lub ntsiab ntawm daim ntawv thov. Ib qho yog ib qhov cuab yeej ywj siab-qhov chaw xim, tsuas yog CIE XYZ, CIE Lab xim qhov chaw (saib daim duab 1). Qhov thib ob yog xim qhov chaw txuam nrog ntaus ntawv, feem ntau RGB (saib daim duab 2), CMYK xim qhov chaw.
PCS (Profile Connection Space), uas yog qhov chaw txuas qhov chaw sib txuas, tuaj yeem txhais los ntawm XYZ chaw lossis Lab qhov chaw, thiab yog ib qho chaw ywj pheej ntawm qhov chaw xim. Lub hom phiaj ntawm PCS yog ua hauj lwm raws li ib qho chaw nruab nrab ntawm qhov xim rau qhov xim hloov chaw thaum hloov xim ntawm cov khoom sib txawv siv los ua ib qhov txuas. Piv txwv, lub duab RGB ntawm lub tshuab luam tawm yog tso tawm kom pom ntawm lub vijtsam zaub. Ua ntej, cov kev tswj xim xim hloov qhov RGB duab ntawm lub tshuab luam tawm rau qhov Chaw Siv Chaw Siv Chaw Teeb Meem (PCS). Cov kev tswj xim xim ces siv cov ntaub ntawv khaws cia rau hauv cov zaub hauv cov xim profile ntawm cov duab los hloov cov duab los ntawm cov ntaub ntawv muaj qhov sib txuas qhov chaw mus rau xim qhov chaw ntawm daim duab pom cov duab tso tawm ntawm cov lus.
3. Lub tswv yim yuav ua li cas?
Qhov chaw xim ntawm cov cuab yeej sib txawv duab yog txawv. Piv txwv, cov duab scanned los ntawm scanner yog RGB cov ntaub ntawv, thiab cov duab luam los ntawm lub tshuab luam ntawv yog CMYK cov ntaub ntawv, thiab CMYK xim gamut yog ntau dua li RGB xim gamut. Kev tswj xim, tus yam ntxwv ntawm ntau yam khoom siv tau raug piav los ntawm kev txhawb cov xim profile nruab nrab ntawm cov khoom siv, nrog rau cov ntsiab lus ntawm ICC, lub ICC profile ntawm daim duab, ICC profile ntawm lub tshuab luam ntawv, thiab ICC profile ntawm lub cuab yeej kev twb kev txuas. Tos. Xim chaw hloov chaw nruab nrab ntawm cov cuab yeej qhov chaw xim thiab lub chaw PCS tau ua los ntawm kev tsim kom muaj ib qho profile ICC, thiab xim txuam yog vim cov xim ntawm qhov xim ntawm ob qhov sib txawv ntawm qhov sib txawv. Cov kev xaiv ntawm kev hloov cov ntaub ntawv los ntawm ib qhov chaw xim rau lwm tus yog hu ua xim txuam.
4. Muaj pes tsawg xim txuam kev muaj nyob ntawd? Kuv yuav tsum siv cov xim xim twg?
Thaum luam cov dluab ntawm cov xim txawv gamuts mus rau ib hom kev tshaj tawm, cov xim xim txoj kev qhia txog lub ntsiab li cas cov xim gamut tau rau hauv xov xwm raug kho. Tus txheej txheem ICC muab plaub xim txuam kev, namely, nov ntawm nqaij tawv, txheeb ze chromaticity, saturation, thiab tsis chromaticity.
Txoj kev xav ntawm txoj kev xav yog kho qhov sib txawv ntawm cov xim raws li cov xim muaj ntau yam tso tawm los ntawm cov lus tso tawm kom tau cov xim ntawm lub suab. Txoj kev chromaticity tus txheeb ze yog los hloov cov dawb taw qhia calibration. Tag nrho cov xim yog hloov raws li qhov kev hloov ntawm lub calibration point, tab sis cov xim gamut compression tsis tau, thiab xim dhau qhov xim qhov chaw ntau yog hloov los ntawm cov xim nrog rau xim ze gamut ciam. Txoj kev ua kom haum yog mus rau nonlinearly nplhaib, tsis tas ua ncaj ncees rau tus thawj, thiab sim siab ua kom siab yog tias cov khoom siv ntawv tso cai. Lub hom chromaticity tsis yog tias cov xim hauv cov qhov tso tawm gamut seem unchanged tom qab tau hloov dua siab tshiab, thiab cov xim dhau ntawm qhov kev hloov siab yog hloov los ntawm cov xim ntawm gamut ciam.
Cov xim uas siv txoj hauv kev siv yog nyob ntawm cov kab ntawm daim tseem thiab cov ntawv nruab nrab. Cov duab thaij duab zoo tib yam tau muab luam tawm los yog muab siv rau kev pom, feem ntau yog siv txoj kev xav hauv lub hlwb. Lub ntsiab tseem ceeb yog tias cov xim gamut ntawm luam los yog tso tawm kom pom yog feem tsawg dua qub. Rau siab xim gamut luam ntawv, nws yuav tsim nyog siv txoj kev chromatic (sim los tsim ib txoj kev sib txawv xim). Txawm li cas los xij, lwm yam, xws li pov thawj (ib qho khoom siv dag zog ntawm lwm lub tshuab, xws li cov duab analog luam tawm), thaum tsis muaj xim sib thooj, muaj xim txaus xim; thaum tso zis xim gamut nyob ze rau cov tswv yim xim gamut Koj siv tau cov xim Colorimetric tsis zoo. Kev siv dag siv feem ntau siv rau cov duab coj mus muag ua vividness ntau dua ntawm cov luam tawm thiab ua kom cov duab muaj zog dua.