Tswj Xim Hauv Phau Ntawv Luam Ntawv

Hauv phau ntawv luam ntawv, kev tswj hwm xim yog lub ntsiab lus tseem ceeb uas txiav txim siab cov txiaj ntsig pom ntawm cov khoom tiav. Los ntawm cov ntaub ntawv digital xa los ntawm tus kws sau ntawv mus rau cov phau ntawv lub cev hauv tes ntawm cov nyeem, xim yuav tsum tau cov khoom siv hluav taws xob, thiab cov khoom siv luam tawm khoom siv tawm. Txhua qhov sib txawv ntawm txhua qhov txuas yuav ua rau pom dab tsi tab sis tsis yog dab tsi tau. Kev tswj hwm xim tuaj yeem tswj cov xim tsis pub dhau Δ tsawg dua li 2.0, uas tsis muaj kev sib raug zoo tshaj plaws Δ e {} cuam tshuam rau kev nyeem ntawv. Kab lus no yuav txheeb xyuas cov ntsiab lus tseem ceeb ntawm cov ntawv sib txuas xim hauv phau ntawv luam tawm, los pab cov kws qhia ntawv, thiab lwm yam tseem ceeb ua tiav cov xim hloov ntawm digital rau lub cev. Cov khoom siv ua vaj tse theem pib ntawm cov cuab yeej Calibration xim tswj, thawj kauj ruam ntawm kev tswj hwm xim yog kom ntseeg tau tib yam lus. Cov yam ntxwv xim ntawm cov khoom siv xws li saib xyuas xws li cov neeg saib xyuas, luam tawm, thiab lwm yam kev sib txawv yuav tsum tau tshem tawm cov qauv ntsuas hluav taws xob los tsim kom muaj kev sib koom ua ke xim. Tus yuam sij rau kev ntsuas hluav taws xob yuav tsum tau kho kom tsis txhob muaj kev ntsuas rau cov kws tshaj lij, thiab nws raug nquahu kom ua li ib hlis ib zaug. Siv tus qauv xim xws li x-rite i1 zaub pro, teev cov zaub cov teeb meem rau: M ², Xim Kub 6500 tus nqi 2.2. Tom qab ntsuas cov cim, cov cim cov yam ntxwv rau lub ntsuas yuav tsum tau tsim kom ntseeg tau tias cov ntaub ntawv ua ntaub ntawv tom ntej yog raws cov xim sib sau ua ke. Kev xeem los ntawm qee lub tsev luam tawm qhia tau hais tias cov kev sib txawv ntawm cov lus qhia thiab cov khoom luam tawm yog txo los ntawm 60% piv rau cov khoom siv tsis muaj kev txwv. Zam kev cuam tshuam los ntawm cov teeb pom kev ntawm kev txiav txim xim xim xim txiav txim. Lub chaw ua haujlwm yuav tsum tau saws cov phab ntsa txho xim av, thiab siv teeb pom kev ci ntsa iab nrog lub teeb xim kub ntawm 5000K rau teeb pom kev zoo. Lub mawv yuav tsum tau tswj hwm ntawm 500-800LUX, thiab lub teeb ncaj qha yuav tsum zam ntawm kev xav txog ntawm lub vijtsam. Tus tsim qauv ua rau muaj kev cuam tshuam loj heev hauv cov ntawv luam tawm vim tias cov duab luam tawm ncaj qha, ua rau muaj ze li ntawm 10000 yuan thaum rov ua haujlwm. Cov xim txheem ntawm cov khoom siv luam tawm yuav tsum tau G7 ntawv pov thawj rau luam ntawv tshuab kom ntseeg tau tias xim ruaj khov. Cov txheej txheem G7 yog ua raws li kev tswj hwm grey, uas tuaj yeem tswj cov xim sib xws rau cov khoom luam tawm los ntawm cov khoom sib txawv thiab cov pob. Ua ntej pib tawm ntawm cov tshuab luam ntawv offset txhua hnub, yuav tsum ntsuas qhov linarization ntsuas kom ntsuas qhov ntsuas X-Dens, dub 1,2, thiab cov khoom muaj nqis. Cov kev nthuav dav hauv dot yuav tsum tau tswj hwm ntawm 10% -15% nrog kev hloov kho qib nrab ntawm 50%. Lub tshuab ua pov thawj digital yuav tsum tau sib phim nrog cov khoom siv luam ntawv kawg. Siv tib cov teeb tsa ntawm ICC cov ntaub ntawv txhawm rau tswj cov kev kuaj thiab luam tawm cov txheej txheem, kom pom tseeb tias cov ntawv sau ua piv txwv yog twv kom cov khoom kawg. Tus kheej luam tawm cov ntaub ntawv tau los thov cov ntaub ntawv sib txawv ntawm δ e {}}} ntawm cov tshuab luam ntawv ua nrog cov khoom luam tawm ua haujlwm thiab cov khoom luam tawm luam tawm, uas ncua lub sijhawm tshaj tawm. Cov txheej txheem ntawm cov xim hloov dua siab hauv cov ntaub ntawv ua, cov xim xim ntawm cov ntaub ntawv digital ncaj qha txiav txim siab txog cov qauv ntawm kev luam ntawv. Kev hloov dua siab tshiab los ntawm RGB rau CMYK, teeb ntawm cov duab xim, thiab tswj cov kev txiav txim siab duab yuav tsum muaj kev txiav txim siab ua haujlwm rau txhua theem kev distortion los ntawm parameter yuam kev. Kev hloov dua siab tshiab los ntawm RGB rau CMYK, zam kev siv lub neej ntawd CMYK hloov dua siab tshiab ncaj qha hauv Photoshop. Kev hloov dua siab tshiab yuav tsum tau raws li lub hom phiaj CMYK ICC ICC ICC ICC ICC ICC ICC ICC ICC ICC ICC ICC ICC ICC ICC ICC ICC ICC ICC Cov Ntaub Ntawv Siv Khoom Siv, Ntawv Cim V2, thiab Ink, thiab tuaj yeem txo qis xim zoo tshaj plaws tau. Tshawb xyuas cov kev xaiv ntawm cov xim dub pob thiab cov xim xim khaws cia thaum hloov dua siab tshiab kom ntseeg tau tias qhov kev ruaj khov ntawm cov ntsiab lus tsaus nti thiab cov laus xim. Tom qab tau txais cov qauv no, cov xim gradient restoration ntawm lub ntuj nyob rau hauv ib lub ntsiab lus album tau nce los ntawm 40%. Kho hloov pauv hloov rau ntau hom duab. Portrait cov duab yuav tsum tau txhim kho daim tawv nqaij rov kho dua tshiab thiab nce qhov kev sib cais ntawm daj thiab mem tes (}%) tsim nyog nyob rau ntu "xim xim" Toj roob hauv pes cov duab yuav tsum tau txhim kho lawv cov lus ntsuab ntsuab, uas tuaj yeem nce ntsuab ink concentration los ntawm+3%; Hmo ntuj Scene cov duab yuav tsum tswj tus nqi ntawm dub mem kua siv siv kom tsis txhob blurring tsaus thaj chaw. Ib phau ntawv txawv teb chaws tau ua tsom kwm kev kho kom haum rau tswj cov xim sib txawv ntawm cov chaw luam yeeb thiab xim tiag tiag}, nws raug pom zoo kom siv cov xim luam ntawv rau lub hau khoom lag luam. Cov xim xim (xws li pantone xim) tau tiav los ntawm ib tus number case, nrog ntau dua xim av noo thiab muaj zog tshaj plaub-xim overlay luam, ua rau lawv haum rau cov ntsiab lus zoo xws li logos thiab cov npe. Kev saib xyuas yuav tsum tau them rau kev siv cov xim xim hauv cov ntawv nyeem thiab cov duab ntawm nplooj ntawv sab hauv. Tshwj tsis yog muaj cov qauv nruj xim xws li cov npav xim hauv phau ntawv, cov luam ntawv plaub-xim yog kev lag luam ntau dua thiab hloov tau. Thaum tus naj npawb ntawm cov xim xim ntau tshaj peb, tus nqi yuav ua rau nce ntxiv. Lub sijhawm no, kev sib xyaw ntawm cov duab xim thiab plaub xim tuaj yeem siv tau, nrog cov xim xim rau cov xim tseem ceeb thiab plaub xim rau tas. Ib tus menyuam phau ntawv phau ntawv siv ob qhov xim xim los sawv cev rau tus cwj pwm tseem ceeb, thiab plaub xim rau lwm cov xim uas tswj tau cov nqi. Cov duab daws teeb meem thiab cov xim kub tswj, cov duab daws teeb meem yuav tsum tau phim cov lej ntawm cov luam ntawv. Tus naj npawb ntawm network cable rau kev luam tawm cov ntawv luam tawm feem ntau yog 175LPI, coj mus rau cov duab daws teeb meem ntawm 350dpi (175 × 2); Tus naj npawb ntawm cov digital luam ntawv network cable yog qhov tsawg (150LPI), thiab daim duab daws teeb meem ntawm 300dpi yog txaus. Cov duab hauv qab no cov qauv yuav ua piv txwv xim ua haujlwm, thaum cov duab saum toj no tus qauv no yuav nce cov ntaub ntawv ntim yam tsis muaj qhov nce tiag. Cov xim tob yog teeb tsa 16 qhov khoom hauv ib channel. Ib tug 16 tus duab me muaj 65536 qib xim piv piv rau cov duab 8, uas tuaj yeem txo cov xim xim gradient thiab txo qis xim banding. Tshwj xeeb tshaj yog nyob rau hauv maj mam hloov chaw thaj chaw xws li lub ntuj thiab dej, luam tawm cov nyhuv ntawm 16 me ntsis cov duab deb tshaj li ntawm 8-ntsis cov duab. Tom qab siv 16 ntsis cov ntaub ntawv rau lub hnub qub saum ntuj daim ntawv qhia chaw nyob rau hauv phau ntawv astronomical, lub siab ntawm hierarchy nyob rau hauv lub galaxy tau txhim kho. Cov txheej txheem tswj xyuas kom muaj xim ruaj khov hauv kev luam ntawv. Txawm hais tias muaj kev npaj txhij txhua, ib puag ncig kev hloov pauv thiab cov khoom hloov pauv thaum lub sijhawm cov txheej txheem luam ntawv tseem tuaj yeem cuam tshuam cov xim ua tau zoo. Cov qauv ua haujlwm thiab kev saib xyuas kev kawm tiag tiag yuav tsum ua kom cov xim muaj teeb meem ntawm tag nrho cov nplooj ntawv thiab xiav rau ntawm ob peb nplooj ntawv kawg. Kev tswj qhov chaw luam ntawv tas li yuav tsum muaj qhov kub khov thiab av noo hauv lub rhiav. Cov xwm txheej zoo tshaj plaws yog qhov kub ntawm 23 ± 2℃thiab ib tug txheeb ze cov av noo ntawm 50 ± 5%. Hloov pauv hauv qhov ntsuas kub thiab cov av noo tuaj yeem ua cov ntawv ncab (± 0.5%) thiab hloov kua mem kua mis qhuav nrawm, yog li cuam tshuam xim ceev. Tom qab kev txhim kho qhov kub tsis tu ncua thiab cov av noo hauv lub tsev luam ntawv, cov xim sib txawv ntawm cov ntawv hauv tib}}}} number case}}}}}}}} Tus lej ua ntej. Tshiab qhib number case number case yuav tsum tau sab laug hauv chav ua haujlwm rau 24 teev kom ntseeg tau tias nws qhov kub muaj raws li ib puag ncig; Daim ntawv yuav tsum yog "plhaw" thiab qhwv hauv yas qhwv rau 48 teev kom txo tau ncab thiab deformation thaum lub sijhawm luam ntawv. Ib phau ntawv kos duab siv txoj haujlwm no los tswj cov xim stitching kev ua yuam kev ntawm cov ntoo khaub lig nplooj ntawv tsis pub dhau 0.5mm. Lub sijhawm soj ntsuam tiag tiag thiab kev hloov kho tsis sib haum xeeb, thiab kev pom zoo ntawm "kos npe" ua ntej luam ntawv. Thawj 3-5 luam tawm cov hnoos qeev yuav tsum tau piv nrog cov qauv qauv, thiab tsis nthuav dav, thiab kev tshuav nyiaj li cas yuav tsum ntsuas siv cov meter '. Lub tshuab luam ntawv siab thiab number li cas yuav tsum tau hloov kho rau lub xeev zoo. Ib co cov ntawv xov xwm luam ntawv tau nce cov ntawv cim kev cai ntawm ib qho ntawm cov ntawv xov xwm los ntawm 88% mus rau 99% los ntawm kev kos npe nruj me ntsis. Cov qauv kuaj pom yog ua txhua 500 daim ntawv thaum lub sijhawm ua ntawv luam ntawv. Kev soj ntsuam tseem ceeb ntawm "peb qib": qib qib (ua ntej thiab tom qab), tsis muaj dab), thiab theem kev txom nyem (ruam<0.02mm). When color drift is detected, adjust the ink fountain roller speed in a timely manner (± 1% each time) to avoid larger fluctuations caused by significant adjustments. The quality report of a certain publishing house shows that real-time monitoring can control the color deviation of the entire batch of books within Δ E=2.0. The material basis for the color expression of paper and ink. The ink absorption, whiteness, hue, and saturation of paper directly determine the final presentation effect of color. Different combinations of paper and ink can produce vastly different color expressions, and should be selected reasonably based on the type of book and cost budget. The influence of paper characteristics on color, copperplate paper is suitable for high saturation colors. Its surface is smooth, with low ink absorption, and can present a bright four-color overlay effect, suitable for picture books, magazines, etc. A fashion magazine uses 157g copperplate paper for printing, and the red saturation of clothing is 25% higher than that of laminated paper. Offset paper is suitable for color expression in text-based books. Its surface is slightly rough, ink absorption is uniform, the edges of the text are clearer, and the colors tend to be soft and natural, suitable for novels, essays, etc. A collection of essays is printed on 80g offset paper, and the warm tone of beige paper harmonizes with the text content. Special paper needs to be tested for color effects in advance. The ink absorption of special paper such as rice paper and kraft paper varies greatly, which may lead to gray or too dark colors. Before printing, a sample test is required to adjust the ink concentration. A replica of an ancient book was printed on antique Xuan paper, and the color of the text was achieved by increasing the ink volume to achieve the expected effect. Targeted selection of ink types, using environmentally friendly soy ink for ordinary books. Its color expression is similar to traditional ink and meets environmental requirements, making it suitable for most publications. A certain textbook publishing house fully adopts soy ink, with a color reproduction deviation of only Δ E=0.8 compared to traditional ink. High concentration ink is recommended for high-end picture books. DIC's "Ultra Rich Color" series ink has a color density 30% higher than ordinary ink, and can present brighter colors on copperplate paper, making it particularly suitable for replicating artistic works. After using this ink in a certain oil painting collection, the saturation of red increased from 65% to 85%. UV ink is suitable for special process requirements. After curing, its color is more stable and it has strong light resistance, making it suitable for books that require long-term preservation such as yearbooks and reference books. A certain encyclopedia is printed with UV ink, and its color fastness level has been upgraded from level 3 to level 6, which can be stored for 10 years without fading. The standard for determining the quality of color inspection is to use scientific methods to check the color quality after printing is completed, in order to avoid subjective judgment bias. Establish quantitative inspection indicators and processes to ensure that each book meets color standards. Quantitative detection of objective indicators, using a spectrophotometer to measure Δ E values. Randomly select 10 sample books and measure 3 color blocks (highlights, midtones, and shadows) for each book. The average Δ E should be ≤ 2.0, and the maximum Δ E for a single book should be ≤ 3.0. A certain publishing house used this as a standard to increase the color qualification rate of books from 90% to 99%. Check the expansion value of the network. The actual expansion of 50% of the network should be controlled within 10% -15%. Exceeding 20% will result in a darker image, while below 5% will result in lighter colors. 50% of the dot area can be observed with a magnifying glass to ensure that the dot shape is regular and there is no adhesion phenomenon.
Cov txheej txheem txheem rau kev tshuaj xyuas kev ntsuas cuam tshuam nrog kev kuaj pom ntawm cov qauv txheem teeb tsa. Siv D65 Cov Qauv Teeb Pom Kev Siv Lub thawv (xim kub 6500K) kom tsis txhob muaj kev tshuaj xyuas hauv qab lub teeb ci lossis lub teeb roj fluorescent, xws li cov xim fluorescent teeb liab). Thaum kuaj xyuas, tso cov qauv phau ntawv coj mus rau ib sab nrog kev ncua deb ntawm 505℃lub kaum sab xis ntawm txoj kab thiab nplooj ntawv, kom tsis txhob muaj hnub ci thiab xav txog. Tsom rau cov chaw tseem ceeb los ntawm tus nyeem ntawv lub tswv yim. Lub qhov tseem ceeb pom ntawm lub hau, cov duab tseem ceeb ntawm nplooj ntawv sab hauv, thiab cov xim xim hauv daim duab yuav tsum tau kuaj xyuas qhov raug xim. Cov phau ntawv kho mob muaj txiaj ntsig PAYS Tshwj Xeeb saib xyuas cov duab kos ntawm anatomical cov duab kos kom ntseeg tau tias cov xim sib cais ntawm cov txheej txheem sib txawv ntawm cov qauv kev qhia.
Cov kev tswj hwm xim ntawm phau ntawv luam ntawv yog qhov phiaj xwm kev ua haujlwm uas xav tau kev sib koom tes sib koom tes ntawm cov cuab yeej siv, thev naus laus zis thiab khoom siv. Los ntawm cov cuab yeej siv calibration nyob rau theem pib kom tau tshuaj xyuas zoo nyob rau hauv txhua theem kom ua tiav cov xim xim rau cov ntawv siv lub cev. Rau cov nyeem, cov xim muaj tseeb yog tsis tsuas yog pom kev pom zoo, tab sis kuj tseem muaj kev lees paub rau cov ntaub ntawv kis tau. Qhov no yog qhov kawg tus nqi ntawm cov xim tswj.