Nyob rau hauv lub tshav pob ntawm cov phau ntawv thiab ntim tshuab luam ntawv, xim luam ntawv tau dhau los ua lub ntsiab ntawm kev luam ntawv, thiab qhov zoo ntawm cov ntawv luam tawm kuj nce. Txawm li cas los xij, vim muaj kev cuam tshuam ntawm cov ntsiab lus thiab lub hom phiaj, tsis muaj ntau yam khoom zoo, uas tsis tuaj yeem muab piv nrog cov khoom lag luam zoo txawv teb chaws. Peb paub tias qhov zoo ntawm cov xim luam tawm yog raug rau ntau yam hauv cov txheej txheem luam tawm, xws li cov suab nrov ntawm cov duab qub, dot expansion tus nqi, xim tshuav nyiaj li cas, thiab lwm yam, thiab qhov zoo ntawm cov duab ua ntej nias ncaj qha. txiav txim siab qhov zoo ntawm cov xim luam ntawv, txawm hais tias qee qhov tsis zoo tuaj yeem raug kho ib nrab ntawm cov phaj luam ntawv, tab sis qhov tseem ceeb tsis muaj dab tsi yuav tsum tau ua kom luam tawm qhov zoo. Yog li ntawd, thaum ua cov duab ua ntej nias, yog tias koj pom tias qhov zoo ntawm qhov qub tsis txaus, koj yuav tsum nrhiav txoj hauv kev los kho nws. Hauv qab no, cov lus qhia luv luv rau qee cov txheej txheem ua thiab cov txheej txheem.
I. Yuav tsum muaj cov ntawv sau qub
(1) Cov ntaub ntawv ceev
Qhov sib txawv ntawm qhov siab tshaj plaws thiab qhov tsawg kawg nkaus qhov ntom ntawm cov ntawv sau (uas yog, qhov sib piv), qhov siab tshaj plaws tus nqi uas tuaj yeem ncav cuag los ntawm kev luam tawm dav dav yog 1.8, qhov siab tshaj plaws ntawm cov ntawv luam tawm yog 1.7, thiab qhov ceev ntawm cov ntawv luam tawm yog 1.8. tus cwj mem dub hauv phau ntawv yog 1.8. Feem ntau, txhua qhov ceev ntawm cov ntawv sau tuaj yeem tsuas yog rov ua dua nyob rau hauv thaj tsam ntawm 0 rau 1.8 ntawm daim ntawv dawb, yog li rau cov ntawv sau, muaj qhov ntom ntom haum rau cov phaj luam ntawv. Thaum qhov ntom ntom ntawm cov ntawv sau qub loj dhau lawm, qhov rhiab heev ntawm lub scanner thiab qhov txuas ntxiv mus rau qhov dhau ntawm qhov ntom ntom yog txo, yog li theem ntawm cov xim sib cais phaj yog tiaj. Raws li kev xyaum, cov ntawv sau qub yog 0.3 ~ 2.1, uas yog, qhov tsim nyog tshaj plaws thaum qhov sib piv yog 1.8. Xim tsis zoo thawj qhov sib txawv yog tswj tsis pub dhau 2.4; Yog tias qhov sib piv ntawm tus thawj yog tsawg dua 2.5, cov nyhuv kuj yog qhov zoo tagnrho thaum luam tawm qhov tsim nyog compression, yog tias qhov sib piv ntawm tus thawj yog ntau dua 2.5, txawm tias cov kauj ruam compression yog nqa tawm thaum luam, qib yuav poob ntau dhau. , thiab cov nyhuv tsis zoo.
(2) Xim tsis zoo ntawm cov ntawv sau qub
Feem ntau muab faib ua tag nrho cov xim tsis zoo, tsis tshua muaj profile xim bias, siab profile xim bias thiab siab profile xim bias ntawm cov xim sib txawv (uas yog, hla xim bias). Yog li ntawd, kev kho yuav tsum raug xam tias yog tag nrho, tsis tuaj yeem pom cov xim tam sim ntawd nrog cov xim, txwv tsis pub nws yuav ua rau lwm yam xim.
(3) Thawj theem
Muaj peb lub ntsiab lus ntsuas los ntsuas qhov zoo ntawm cov replicas: qib, xim thiab clarity, thiab theem yog qhov tseem ceeb tshaj plaws. Cov qib ntawm cov ntawv sau ib txwm yuav tsum muaj cov yam ntxwv ntawm daim duab tsis kaj thiab tsaus, siab, nruab nrab thiab qis profile, ntau qhov kev hloov pauv, nplua nuj qib thiab lwm yam.
2. Cov teeb meem xim qub thiab txoj kev kho mob
Qhov tseeb ntawm lub suab nrov tuaj yeem pom ncaj qha los ntawm kev ntsuas qhov sib txawv ntawm peb-xim density thiab cov lus piav qhia ntawm peb-xim density nkhaus. Xim luam ntawv replication faib qhov ntom ntom ntawm cov ntawv sau qub thiab luam tawm ua plaub ntu, uas yog, qhov ntom ntom ntawm cov ntsiab lus tseem ceeb thiab qhov tsaus ntuj tau muab faib ua cov suab nrov, nruab nrab thiab tsaus tones, thiab thaj tsam tsawg dua qhov ntom. ntawm lub ntsiab lus tseem ceeb yog hu ua lub teeb siab heev.
Hauv kev txheeb xyuas cov xim zoo ntawm cov ntawv sau qub, yog tias peb xim qhov sib txawv thiab qhov sib txawv yog qhov zoo ib yam, nws txhais tau hais tias nws tsis yog kev sib tw, thiab lub suab nrov yog qhov qub; Yog tias qib ua tiav, qib yog nplua nuj, thiab kev faib tawm yog qhov tsim nyog, txawm tias tag nrho qhov sib txawv me ntsis txawv, nws tuaj yeem suav tias yog cov ntawv sau ib txwm, thiab cov xim luam tuaj yeem raug kho raws li cov ntaub ntawv xim tsis zoo, thiab qhov tsom xam yog nyob rau qib luam.
Yog tias qhov sib txawv ntawm peb cov xim sib txawv, nws qhia tau tias nws yog qhov sib txawv rau qee yam xim, tab sis qhov sib txawv ntawm peb xim qhov sib txawv yog qhov sib npaug, thiab nws yog qhov sib npaug ntawm cov xim. Nws yog qhov zoo tshaj plaws los tsim lub hierarchical reproduction nkhaus los kho peb-xim grey tshuav nyiaj li cas raws li peb-xim density nkhaus, kom lub xim ntawm tag nrho cov kev txiav txim yuav tsum uniformly kho.
Yog tias qhov sib txawv ntawm qhov sib txawv ntawm qhov ci peb xim nyob rau hauv cov ntawv sau qub yog qhov loj, qhov ntom ntawm peb xim tsaus yog nyob ze rau qhov qub, thiab cov xim tsis ncaj ncees feem ntau tshwm sim nyob rau hauv qhov chaw siab, uas tsis tsim nyog rau kev luam tawm ntawm qib siab profile ntawm daim duab. Nws yog qhov zoo tshaj plaws los txiav txim siab thiab tsim cov hierarchical daim ntawv nkhaus ntawm peb-xim version raws li peb-xim density nkhaus, hloov cov ntaub ntawv teeb tsa ntawm peb-xim dot ntawm qhov tseem ceeb ntawm cov duab sib cais xim, thiab kho qhov siab. profile xim bias.
Yog hais tias lub teeb peb-xim siab ntawm cov ntawv sau tseem ceeb yog qhov qub, tsuas yog peb-xim qhov ntom ntawm qhov tsaus ntuj yog qhov sib txawv, qhov sib txawv ntawm qhov sib txawv kuj txawv, thiab cov xim yog pom tseeb ntawm qhov nruab nrab mus rau qhov tsaus ntuj. , lub suab tsaus me ntsis poob, thiab qib siab profile yog qhov qub. Muaj peev xwm hloov cov xim sib cais daim duab tsaus nti peb xim dot cov ntaub ntawv teeb tsa, lossis ntxiv cov xim ntawm lub suab tag nrho ntawm cov xim tom qab tshem tawm (tsuas yog rau cov xim sib xyaw muaj txiaj ntsig). Txawm li cas los xij, thaum cuam tshuam nrog cov xim ntawm cov ntawv sau qub, nws yuav tsum tau them sai sai rau qee qhov kev ua yeeb yam uas tus kws sau ntawv txhob txwm tsim, xws li cov duab backlight.
Hauv kev luam ntawv, feem ntau muaj peb lub ntsiab lus sib txawv ntawm cov xim luam tawm. Ib qho yog lub cev kev nkag siab ntawm cov xim luam tawm, yuav tsum muaj kev faib tawm ntawm cov xim qub ntawm txhua qhov xim xim yog tib yam. Qhov thib ob yog kev yug me nyuam hauv kev nkag siab ntawm colorimetry, kom cov duab luam tawm luam tawm zoo ib yam lossis ze rau cov ntsiab lus xim ntawm cov ntawv sau qub hauv chroma, uas yog, qhov sib txawv ntawm cov xim tib yam, uas yog qhov kev ntsuam xyuas lub hom phiaj tiag tiag. ntawm kev ntsuas tus qauv ntawm cov xim luam tawm. Qhov thib peb yog kev puas siab puas ntsws ntawm cov xim luam tawm, uas yog, xim ntawm luam ntawv luam tawm, hauv chroma nrog cov xim qub tuaj yeem muaj qee qhov sib txawv, tab sis hauv cov xim xim tuaj yeem ua tiav qhov pom kev puas siab puas ntsws.
Lub hauv paus ntsiab lus ntawm kev tsim cov xim yog los kho cov grey hauv cov ntawv sau qub. Txhawm rau ntsuas qhov sib npaug ntawm cov luam ntawv luam tawm, siv cov xim densitometer los ntsuas qhov peb-xim nruab nrab grey nplai txuas nrog rau kev luam ntawv, lossis ntsuas qhov peb-xim lub teeb ntom ntom hauv daim duab uas yuav tsum yog qhov nruab nrab grey theem. Yog tias kev soj ntsuam yog siv los ntawm kev ntsuam xyuas, nws yog ib qho tsim nyog los sib piv cov qib grey hauv cov duab luam tawm nrog tus qauv nruab nrab grey thaiv nyob rau hauv cov xwm txheej uas lub teeb ci thiab qhov kub ntawm cov xim ambient yog tus qauv heev.
3. Qhov teeb meem ntawm qib ceev ntawm cov ntawv sau qub thiab nws txoj kev kho mob
Rau cov ntawv sau nrog ntau qib ntawm qhov ntom thiab zoo, cov txheej txheem ua haujlwm sib txawv ntawm cov ntawv sau rau cov ntawv sau.
(1) Qhov cuam tshuam yog qhov qub, thiab qhov tseem ceeb ntawm qhov sib txawv ntawm qhov sib txawv yog nyob rau hauv lub suab nrov thiab lub suab nruab nrab, uas yog proportional rau lub brightness, thiab nyob rau hauv lub 4-6 theem ntawm lub tshiab brightness standard system .
(2) Cov ntawv sau zoo sib xws
Qhov ceev tsawg yog {{0}}.3 ~ 0.5, qhov siab ceev yog 2.4 ~ 2.8, uas yog ze rau tus qauv qub ntawv sau. Thaum qhov sib piv ntawm cov ntawv sau qub yog compressed, qib kev hloov kho yog ua raws li kev tsim tawm nkhaus ntawm qhov ze tus qauv qib suab, uas tuaj yeem ua tiav cov txiaj ntsig zoo.
(3) High contrast phau ntawv
Qhov siab optical ceev tsis siab tshaj {{0}}.4, thiab qhov siab tshaj plaws yog siab tshaj 3.0, feem ntau ntawm cov thawj scenery contrast contrast yog loj heev, lub suab nruab nrab nruab nrab yog nplua nuj thiab tiav, qhov brightest thiab darkest theem cheeb tsam piv tsis loj. Hauv cov ntawv sau zoo li no, thaum ua qhov tseem ceeb thiab xaiv qhov tsaus ntuj, nws feem ntau tuaj yeem hla cov theem nrab ntawm ob qho kawg kom txo tau qhov kev luam tawm ntawm nws lub suab.
(4) Cov ntawv sau tsis sib xws
Lub suab sib piv yog qis dua 1.7, thiab qhov siab optical ceev yog qis dua 0.3. Lub ntsiab ntawm cov ntawv sau yog ci thiab nyias, thiab qhov ci ci yog siab. Nws yog nyob rau hauv lub 7 thiab 8 theem ntawm lub brightness tshiab txheem system, thiab lub brightness theem yog nplua nuj, tab sis qhov ceev theem sib txawv yog heev me me, thiab qhov feem ntawm cov cheeb tsam yog loj. Thaum ua, sib sib zog nqus daim ntawv kom txo tau qhov ci thiab txav mus ze rau tus qauv ci ntsa iab. Cov ntawv sau zoo li no yuav tsum tau ua kom muaj zog ntawm txheej txheej luam thiab rov faib cov suab nrov thiab nruab nrab, qhov ntom ntom ntawm cov xim dub thiab dawb daim teb calibration yuav tsum me dua, thiab cov txheej nkhaus ntawm lub suab nrov thiab nruab nrab yuav tsum sib sib zog nqus me ntsis kom ua tiav cov txheej txheem zoo sib xws thiab qhov pom kev ci ntsa iab. Raws li cov duab ntawm nws hierarchical faib nkhaus, lub ntsiab lub cev yuav tsum txawv nyob rau hauv lub teeb tone los yog nruab nrab tone ntom ntau. Nyob rau tib lub sijhawm, nws tseem yuav tsum tau siv qhov tob tob thiab lengthened dub theem ntxiv.
