Creative Lattice Folding Boxes Ntawm Kev Tswj Xim: Txoj Kev Hloov Xim kom txo cov xim poob

Creative Lattice Folding Boxes of Color Management: Txoj kev hloov xim kom txo tau xim

Tam sim no, hauv kev tswj xim thev naus laus zis, lub npe hu ua xim feature txuas qhov chaw txais qhov chaw chromaticity ntawm CIE1976Lab. Cov xim ntawm txhua lub cuab yeej tuaj yeem hloov pauv mus rau qhov chaw no, tsim "universal" kev piav qhia txoj kev, thiab tom qab ntawd xim hloov pauv hloov. Nyob rau hauv lub computer operating system, txoj hauj lwm ntawm kev siv cov xim txuam hloov dua siab tshiab yog ua tiav los ntawm "xim txuam module", uas yog qhov tseem ceeb heev rau kev ntseeg siab ntawm kev hloov xim thiab xim sib xws.

Yog li, yuav ua li cas kom ua tiav cov xim hloov hauv qhov chaw xim "universal", kom ua tiav cov xim poob lossis tsawg li sai tau?

Qhov no yuav tsum muaj txhua pawg ntawm cov khoom siv los tsim cov profile, cov ntaub ntawv kos npe xim ntawm lub cuab yeej. Peb paub tias cov khoom siv sib txawv, cov khoom siv thiab cov txheej txheem muaj cov yam ntxwv sib txawv thaum nws los txog rau kev ua thiab xa cov xim. Hauv kev tswj cov xim, cov xim nthuav tawm ntawm ib lub cuab yeej tau nthuav tawm ntawm lwm lub cuab yeej hauv kev ntseeg siab, uas yuav tsum kom peb nkag siab cov yam ntxwv ntawm cov xim nthuav tawm ntawm ntau yam khoom siv. Txij li thaum lub cuab yeej-yooj yim xim qhov chaw, CIE1976Lab chromaticity qhov chaw, tau raug xaiv, cov yam ntxwv xim ntawm cov cuab yeej sawv cev los ntawm kev sib raug zoo ntawm tus nqi piav qhia ntawm cov cuab yeej thiab tus nqi chromaticity ntawm "universal" xim qhov chaw, uas yog xim. cov ntaub ntawv piav qhia ntawm lub cuab yeej.

Ntaus xim feature piav qhia cov ntaub ntawv

Hauv cov txheej txheem tswj xim, cov khoom siv ntau tshaj plaws xim feature piav qhia cov ntaub ntawv poob rau hauv peb pawg. Thawj hom yog scanner feature cov ntaub ntawv, nws muab Kodak, Agfa, Fuji Tuam Txhab tus qauv ntawv sau thiab cov ntaub ntawv txheem ntawm cov ntawv sau no, kev siv lub tshuab luam ntawv nkag rau cov ntawv sau no, cov ntaub ntawv luam theej duab thiab cov ntawv sau tus qauv ntawm qhov sib txawv qhia cov yam ntxwv ntawm lub tshuab luam ntawv; Qhov thib ob yog cov ntaub ntawv feature, nws muab qee cov software, tuaj yeem ntsuas cov xim kub ntawm cov zaub, thiab tom qab ntawd tsim cov xim thaiv ntawm qhov screen, cov xim thaiv cov ntaub ntawv qhia txog cov yam ntxwv ntawm cov zaub; Hom thib peb yog cov ntaub ntawv tshwj xeeb ntawm cov cuab yeej luam ntawv, uas tseem muab cov txheej txheem software, software tsim cov duab uas muaj ntau pua xim blocks hauv lub computer, thiab tom qab ntawd cov duab tso tawm ntawm cov khoom siv tso tawm, yog tias nws yog lub tshuab luam ntawv. ncaj qha proofing, luam ntawv xovxwm yuav ua ntej tawm zaj duab xis, proofing thiab luam ntawv, cov zis ntawm cov dluab yog ntsuas kom muaj kev cuam tshuam cov feature ntaub ntawv cov ntaub ntawv ntawm lub tshuab luam ntawv.

Lub generated profile, uas yog, xim feature ntaub ntawv, nws hom yog tsim los ntawm cov ntaub ntawv header, tag lub rooj thiab tag cov ntaub ntawv. Cov ntaub ntawv header, uas muaj cov ntaub ntawv yooj yim ntawm cov ntaub ntawv xim feature, xws li cov ntaub ntawv loj, hom kev tswj xim, version ntawm cov ntaub ntawv hom, hom ntaus ntawv, xim qhov chaw ntawm lub cuab yeej, chrominance qhov chaw ntawm cov ntaub ntawv feature, operating system, ntaus ntawv. chaw tsim tshuaj paus, xim kho lub hom phiaj, nruab nrab ntawm cov ntawv sau, lub teeb qhov chaw chrominance cov ntaub ntawv, thiab lwm yam., cov ntaub ntawv header account rau 128 bytes. Tag lub rooj, uas muaj cov npe cim npe, qhov chaw khaws cia, cov ntaub ntawv loj, tab sis tsis muaj cov ntsiab lus tshwj xeeb ntawm daim ntawv lo, tag tus lej lub npe occupies 4 bytes, thiab txhua yam khoom ntawm tag lub rooj nyiaj rau 12 bytes. Tag cov ntaub ntawv, nws yog nyob rau hauv raws li cov lus qhia tag lub rooj, nyob rau hauv qhov chaw tshwj xeeb los khaws cov xim tswj yuav tsum tau los ntawm ntau yam ntaub ntawv, raws li qhov nyuaj ntawm cov ntaub ntawv tag, qhov loj ntawm cov ntaub ntawv tag txawv.

Rau cov tshuab luam ntawv cov khoom siv xim feature cov ntaub ntawv, cov ntaub ntawv duab ua haujlwm muaj ob txoj hauv kev kom tau txais.

Thawj txoj hauv kev yog qhov profile uas tuaj nrog lub cuab yeej thaum lub sijhawm yuav khoom. Nws tuaj yeem ua tau raws li kev tswj hwm xim dav dav ntawm lub cuab yeej. Lub profile yog loaded rau hauv lub system thaum daim ntawv thov software ntawm lub cuab yeej yog ntsia.

Txoj kev thib ob yog siv cov software tshwj xeeb profile, raws li qhov tseeb ntawm cov cuab yeej uas twb muaj lawm, los tsim cov ntaub ntawv siv cov xim tshwj xeeb piav qhia, uas feem ntau yog qhov tseeb, thiab ntau dua nyob rau hauv txoj kab nrog cov xwm txheej tiag tiag ntawm cov neeg siv. Lub xeev ntawm cov khoom siv, cov khoom siv thiab cov txheej txheem txheej txheem tuaj yeem hloov lossis hloov mus rau lub sijhawm. Yog li ntawd, qhov profile yuav tsum tau remade txhua zaug ib zaug kom phim cov xim teb ntawm lub sijhawm.

Xim yog pauv los ntawm lub cuab yeej

Tam sim no, cia peb saib yuav ua li cas xim hloov mus rau hauv cov khoom siv.

Ua ntej, rau cov ntawv sau nrog cov xim ib txwm, cov ntawv luam theej tawm yog nqa los ntawm scanner ua ntej. Txij li thaum lub scanner profile muab cov kev sib raug zoo ntawm cov xim ntawm lub scanner (xws li peb qhov kev txhawb nqa ntawm liab, ntsuab thiab xiav) thiab chroma qhov chaw ntawm CIE1976Lab, lub operating system tuaj yeem tau txais tus nqi chroma Lab ntawm cov ntawv sau xim raws li qhov no. hloov dua siab tshiab kev sib raug zoo.

Cov duab scanned yog tso tawm kom pom ntawm lub vijtsam saib. Txij li thaum lub kaw lus tau paub txog kev sib raug zoo ntawm Lab chromaticity qhov tseem ceeb thiab liab, ntsuab thiab xiav tsav tsheb teeb liab ntawm cov zaub, liab, ntsuab thiab xiav chromaticity qhov tseem ceeb ntawm lub scanner tsis siv ncaj qha thaum lub sij hawm tso saib, tab sis kev sib raug zoo hloov dua siab tshiab muab los ntawm qhov profile ntawm cov zaub los ntawm Lab chromaticity qhov tseem ceeb ntawm cov ntawv sau dhau los. Tau txais lub teeb liab liab, ntsuab thiab xiav cov teeb liab tsav tsheb uas tuaj yeem ua kom pom cov xim ntawm cov ntawv sau ntawm qhov screen, thiab tsav cov zaub kom pom cov xim. Qhov no ua kom ntseeg tau tias cov xim uas tso rau ntawm lub monitor phim cov xim ntawm cov ntawv sau qub.

Tom qab soj ntsuam cov duab xim xim zoo, tus neeg teb xov tooj tuaj yeem kho cov duab raws li kev tshuaj ntsuam xim ua raws li cov neeg siv khoom xav tau, thiab vim tias qhov profile ntawm cov khoom siv luam ntawv, tom qab cov duab xim sib cais, cov xim raug tuaj yeem pom ntawm lub tso saib tom qab luam ntawv. Thaum tus neeg teb xov tooj txaus siab rau cov xim ntawm cov duab, cov duab raug cais thiab khaws cia. Thaum lub sij hawm sib cais xim, qhov tseeb qhov feem pua ​​​​tau txais raws li kev sib raug zoo ntawm cov xim hloov pauv los ntawm qhov profile ntawm cov khoom siv luam ntawv. Tom qab RIP (raster duab processor), sau cov ntawv luam tawm, luam ntawv, pov thawj thiab luam ntawv, tau txais ib daim ntawv luam ntawm cov ntawv sau qub los ua kom tiav tag nrho cov txheej txheem.