Luam cov tswv yim thiab khaws cia ntawm ntau hom keeb kwm
Peb yog ib lub lag luam loj hauv Shenzhen Tuam Tshoj. Peb muaj cov phau ntawv luam tawm, phau ntawv nyuaj, 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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Nws yog qhov paub zoo tias lub scanner yog ib qho khoom siv lag luam uas hloov cov ntawv ua analog rau hauv cov duab digital. Txawm nws yog ib qho chaw rau kev sib tsoo lossis qhov yuav tsum ua kom muaj cov ntsiab lus ntawm cov ntawv luam, lub luag haujlwm ua los ntawm lub tshuab luam ntawv tseem ceeb heev. Cov kev lag luam tam sim no nyob rau hauv kev lag luam mas muaj xws li cov tshuab luam ntawv, cov tshuab luam yeeb, thiab cov tshuab luam ntawv. Ntawm chav kawm, lawv tuaj yeem ua subdivided ntxiv. Rau kev khiav lag luam ntawm lub tshuab luam yeeb, tsis yog qhov khoom siv yuav tsum raug xaiv raws li ntau hom keeb kwm, tab sis kuj yog hom tshuaj los yog hom cia yuav tsum raug xaiv kom txhim kho kev soj ntsuam zoo.
Kev xa duab rau ntau hom qauv Lub scanner scanning feem ntau qhia peb nrog peb hom kev ua haujlwm: dub thiab dawb, grayscale thiab xim. Cov txheej txheem "dub thiab dawb" yog tsim rau cov qauv qub nrog cov ntawv dub thiab dawb, thaum "grayscale" yog tsim rau nraaj thiab ntawv cov ntaub ntawv, thiab xim yog tsim los tha xim duab. Txoj kev xa khoom kuj tseem tuaj yeem cuam tshuam txog kev ceev thiab qhov loj ntawm cov ntaub ntawv scanned. Yog li, ua ntej luam, peb yuav tsum xaiv ib qho kev tsim kev soj luam raws li cov khoom ntaus khoom, thiaj li tau txais ib qho kev zoo dua qhov nyhuv.
1. Kev xaj ntawm kab kos duab
Rau kab drafts, xaiv tus luam theej duab xim "Kab Kos", cia li xav txog qhov sib txawv ntawm cov dub pixels thiab dawb pixels. Koj yuav tsum tau them nyiaj rau qhov chaw Threshold thaum luam roj, yog, qhov xim dab tsi yog qhov xim dub, dab tsi yog xim dawb, yog tias nws yog qhov chaw ci tshaj plaws lossis qhov tsaus ntuj ntawm qhov yeeb yaj kiab tuaj yeem paub meej txaus. Feem ntau, qhov chaw pib = 50% yog tus nqi tus nqi. Yog hais tias qhov kev tshuaj ntsuam scan dhau tsaus nti, nce qhov chaw pib, uas yuav hloov tau ntau qhov xim grey ua dawb pixels. Yog hais tias qhov kev tshuaj ntsuam xyuas Yog tias lub teeb ntsa dhau, qhov pib ntawm qhov pib, uas hloov cov xim av ntau dua rau hauv pixels dub. Lwm qhov teeb meem yuav tsum paub txog yog los txiav txim siab txog kev daws teeb meem. Kev sojntsuam ntawm kev txhim kho kab kev tsim yuav tsum siab tshaj qhov kev daws teebmeem ntawm cov duab nruam tas mus li. Feem ntau, nws yuav tsum yog siab tshaj 600dpi los ua cov kab zis muaj me me serrations, uas tsis pom qhov muag liab qab, thiab cov duab daws tsis dhau, ua rau jaggedness.
2. Grayscale scanning
Rau qee cov ntawv nyeem, koj tuaj yeem siv 256-theem grayscale scanning. Cov duab scanned yog kab tawm. Cov hom Art yog du, thiab qhov grayscale ntawm ib co npoo zoo dua qub. Tom qab luam xa mus rau Photoshop, koj tuaj yeem kho lawv kom dub raws li qhov tsim nyog. Qhov tseem yog xim dawb, thiab tau txais ib daim duab grayscale, ib theem zoo yog tau, dua li ntawm cov xim thaij duab. Vim tias daim ntawv qhia xim muaj kev kub thiab nplua nuj. Yog 256 Ntxoov of Grey yuav poob qee yam xov xwm. Tom qab luam xov hauv RGB hom, nws yuav hloov dua siab tshiab rau Grey hauv Photoshop. Thaum hloov, koj tuaj yeem siv cov ntaub ntawv ntawm cov channel kom hloov.
3. Luam ntawm cov xim thawj
Qhov zoo ntawm cov xim thawj yog zoo. Thaum koj xa cov xim thawj, koj tsuas yog yuav tsum teeb tsa tus ciaj ciam. Txawm li cas los xij, rau cov neeg tsis pom tseeb, nws yog qhov tsim nyog los kho lawv thaum lub sij hawm luam roj nyob ntawm seb qhov teeb meem no tiag. Kev siv tshwj xeeb ntawm cov ntawv sau tshwj xeeb, xws li xim duab duab ntawm cov ntawv xov xwm xim. Cov ntawv xov xwm xim siv ntawv xov xwm, yog li nws muaj ntau yam ntxwv ntawm coated paper. Qhov tseem ceeb ntawm cov ntawv xov xwm tsis muaj nqi yog li ntawm 0.15 ~ 0.2, uas yog sib npaug ntawm C: 3%, M: 4%, thiab Y: 10% ntawm daim ntawv coated. Yog li ntawd, cov ntawv xov xwm tsis dawb. Vim tias cov ntawv xov xwm muaj grey nplai thiab xoob ntawv, tus cwj mem muab ntau heev, tus cwj pwm absorbability muaj zog, thiab cov ntaub ntawv ntawm tus cwj pwm muaj tsawg, li ntawd txawm tias 100% K muab rau ntawm qhov sib sib zog nqus, nws tseem tsis dub txaus ( xws li, qhov ntom yog tsis txaus). Hauv ntej, qhov zoo ntawm cov ntawv ceeb toom me me, tsuas yog li 1.2, uas txiav txim siab tias thaj chaw siab tshaj plaws yuav tsum muaj me me ntawm C, M, Y, K, thiab cov nqi ntau tshaj ntawm plaub (plaub tsis pub tsawg tshaj 250) hauv tsaus nti. Mus ua kom zoo dua. Cov xim qhia yuav tsum tsis txhob tsom rau kev luam ntawm txheej. Cov xim thawj xim thiab cov xim nruab nrab yuav tsum tau siv ntau dua, thiab cov xim yooj yim yuav tsum rov qab siv qhov xim txawv los yog cov xim sib txuam kom ua kom xim zoo nkauj thiab vivid. Rau daim tawv nqaij xim, qhov ntsuab version yuav tsum siv tsawg dua kom tsis txhob greying thiab darkening, thiab tag nrho cov nqi ntawm C, M, thiab Y ink overprinting yuav tsum tau consciously txo.
4. Sau cov ntawv luam tawm
Ntau yam luam tawm tau muaj cov pob zeb tawg thiab moiré, thiab tom qab xuas roj hmab, lub pob zeb thiab cov moiré muaj ntau dua. Feem ntau, lub tshuab hluav taws xob muaj nuj nqi ntawm kev mus rau lub network, thiab qhov essence ntawm lub network yog kom pom cov duab. Koj tuaj yeem tshem lub moiré thiab tau txais cov duab zoo. Yog li ntawd, thaum muaj kev cuam tshuam cov ntawv luam thawj, nws yog feem ntau yuav tsum xaiv lub Descreen hais kom ua. Mus rau hauv lub vev xaib thaum kev xaav tau zoo dua qhov mus rau hauv Web site hauv Photoshop tom qab luam roj.
Ib txhia ntawm cov luam tawm muaj lub cev loj heev. Koj tuaj yeem ua tsis tau cov duab tom qab luam roj. Koj yuav tsum mus txuas ntxiv mus rau hauv Net hauv Photoshop. Qee lub sij hawm daim duab pib dhau virtual tom qab mus rau hauv net. Koj tseem tuaj yeem siv Unsharp hauv Photoshop.
Daim npog ntsej muag tseem ceeb heev.
5. Muab xa tuaj
Qhov kis tau tus mob muaj ob hom kev zoo thiab qhov tsis zoo, Qhov Transparency Zoo txhais tau hais tias yog qhov zoo nkauj, Tsis muaj Transparency txhais tau tias negatives. Cov thawv nta ca feem ntau siv ib lub iav pob tshab los nias rau hauv qab ntawm qhov nraub qaum. Lub teeb ci illuminates tus thawj ntawm saum lub pob tshab pob tshab. Feem ntau cov iav tuaj yeem raug luam tawm ncaj qha tsis ntxiv roj. Qhov yob scanner yog ib txoj kev los muab cov roj ntawm ob sab ntawm daim duab nrog cov duab tshev, thiab tus ncej qub yog muab zais thiab tshem tawm. Cov yeeb yaj kiab tsis zoo thiab cov duab thaij duab zoo kuj txawv txav. Nyob rau ntawm tam sim no, qhov nyhuv ntawm cov yeeb yaj kiab uas zoo tshaj qhov zoo ntawm cov yeeb yam tsis zoo. Yog li, nws zoo dua los xaiv qhov zoo nkauj zoo nkauj thaum xaiv qhov tseem ceeb. Nws zoo dua qhov tseeb ntawm txoj kev xav, cov nplua nuj hauv cov khaubncaws sab nraud povtseg thiab cov yeeb yuj, thiab cov khoom zoo, tsim kom muaj kev loj ua kom tiav.
Thaum luam ib qho kev xa mus thawj, kev ntxuav lub tshuab xaav thiab lub platform yuav txo qhov tiam ntawm Newton lub nplhaib. Tab sis yog tias nws tseem muaj, siv lub nruas nrog hmoov nplej, kom tsis txhob tawm ntawm lub tshuab hluav taws xob, nyem qhov hmoov nplej tawm ntawm cov khoom qub, cia nws kis tawm hauv cov huab cua, thiab thaum lub loj loj poob, tuav cov kis tau tus mob. Nyob rau hauv lub ces kaum, cia nws dhau los ntawm qhov chaw thau av, kom nplua zoo nyob rau ntawm huab cua poob rau nws, uas yuav tshem tawm Newton lub nplhaib.
6. Barcode scanning
Zoo li cov ntawv me me, txoj kev daws teeb meem ntawm cov code code yog siab tshaj qhov ntawm cov ntawv luam tawm, thiab nws yog guaranteed ntau dua 600dpi. Tsis tas li ntawd, nws yog qhov zoo dua los laij cov qauv tha xim rau Grey hom. Yog hais tias siv cov duab ntawm txoj kab hauv binary, nws yuav ua rau ntug aliasing.
Qhov kev xaiv hom cia Cov duab cov ntaub ntawv cia tau muab faib ua ob pawg: ib qho yog ib qho duab bitmap: ib qho yog hu ua vector file, kuj hu ua cov duab kos los yog cov khoom siv ntsej muag. Bitmap daim duab cov ntaub ntawv qhia txog cov duab graphic hauv dot matrix hom, ua kom zoo tagnrho rau cov haujlwm nplua nuj xws li duab thiab roj paintings. Tus sawv cev feem ntau tus software yog tam sim no Photoshop nrov heev.
Ib cov ntaub ntawv vector yog graphical daim duab ntawm geometric ntsiab hais txog lej. Lub vector tsis tas yuav sau cov ntaub ntawv ntawm txhua pixel hauv daim duab zoo li ib lub ntsis, yog li nws qhov chaw disk yog feem ntau me dua cov bitmap. Tsis tas li ntawd xwb, vim hais tias cov duab ntawm cov duab yog ntxaws, tiag tiag thiab kev daws teeb meem ntawm cov duab scaled tsis hloov dab tsi ntxiv, nws tau dav siv nyob rau hauv kev ua hauj lwm-nraaj duab ua. Tshwj xeeb, cov ntaub ntawv siv TIFF, EPS, thiab JPEG tshaj plaws yog cov qauv ntaub ntawv. Cov hom ntawv EPS thiab TIFF yog ob txoj kev ua qauv uas cov neeg tshajtawm luam tawm tau nyiam tshaj plaws; Cov hom ntawv cuam tshuam cov neeg uas xav mus ua haujlwm hauv Internet lossis ntau hom xov xwm ntau dua. Tsis tas li ntawd, cov ntaub ntawv xws li PDD, PNG, thiab SVG kuj suav nrog, tab sis lawv tsis nquag siv, thiab feem ntau hloov dua siab tshiab rau saum toj 3 hom ntawv thaum siv.
TIFF ntaub ntawv hom ntawv
TIFF yog duab Duab Diav Ntaub Duab Lub npe ntawm hom ntawv cim (cim duab ua hom ntawv), nws yog ib hom ntawv sau tseg rau kev teev cia dub thiab dawb cov duab, grayscale dluab thiab xim dluab, tau tam sim no los ua ntau hom xov xwm. Ib hom ntaub ntawv tseem ceeb hauv CD-ROM. Tus TIFF bitmap tuaj yeem muaj qhov luaj li cas thiab kev daws teeb meem, thiab hauv txoj kev xav nws muaj peev xwm muaj qhov kawg ntawm qhov me me. TIFF hom ntawv encoded, graycale, CMYK hom, indexed xim hom, los yog hom RGB. Nws muaj peev xwm tau txais kev cawmdim rau hauv ob qho tib si sib ntau thiab tsis muaj kev tawm tswv yim. Yuav luag txhua daim ntawv sau npe uas muaj kev siv cov khoom bitmaps hauv lawv txoj haujlwm ua tau haujlwm TIFF cov ntaub ntawv tawm suab-seb lawv puas tau tso, luam, txiav, lossis kho. Nyob rau hauv TIFF cov ntaub ntawv, tsis muaj cov cuab yeej muaj kev ntsuas cov lus qhia. Ntsuas ua yog tshuaj los ntawm ib qhov kev pab cuam uas luam tawm TIFF cov ntaub ntawv. Yog hais tias koj xav khaws cov lus qhia ua cov ntaub ntawv thaum txuag lub bitmap, koj yuav tsum siv cov ntaub ntawv EPS. Tab sis TIFF hom tau lis txoj kev khoob, thiab QuarksXPress thiab PageMaker kuj nyeem tau txoj kev clipping thiab thwj tawm tom qab.
EPS ntaub ntawv hom ntawv
EPS encapsulated PostScript (Encapsulated PostScript) hom tsev yog Adobe Cov nplooj ntawv piav qhia hom lus uas lub tuam txhab tsim los luam cov ntaub ntawv rau txhua lub tshuab luam ntawv uas txhawb nqa cov lus PostScript. EPS cov ntaub ntawv hom ntawv siv tau los ntawm kev siv cov pixel dluab, ntawv, thiab vector graphics. Yog tias EPS tsuas yog siv rau cov duab pixel xwb, cov ntaub ntawv qhia tawm thiab cov ntawv luam tawm cov ntaub ntawv yuav muab khaws cia rau hauv cov ntaub ntawv, thaum TIFF tsis tso cai rau cov ntaub ntawv no. Vim tias cov ntaub ntawv EPS tiag tiag yog ib phau ntawm PostScript cov lus, nws sau tau ntau txoj hauv kev luam ntawv PostScript. Software uas tsim los yog tsim kho EPS cov ntaub ntawv muaj peev xwm txhais tau cov peev xwm, kev daws teeb meem, kev ua ntu zus, thiab lwm yam kev sau ntawv thiab luam ntawv. Cov ntaub ntawv no yog kos nyob rau hauv EPS cov ntaub ntawv thiab mam li nyeem thiab ua tiav los ntawm lub tshuab luam ntawv. Muaj ntau pua tus tshuab luam ntawv uas txhawb PostScript cov lus, nrog rau tag nrho cov duab layout systems siv hauv kev lag luam desktop publishing. Yog li no, hom ntawv EPS yog ib hom ntaub ntawv siv los ntawm cov kev tshaj tawm thiab cov luam ntawv.
JPEG ntaub ntawv hom ntawv
JPEG yog hom ntau hom compressed duab. Rau cov ntawv sau cov duab tseeb tsis siab thiab ntau tus duab cov ntaub ntawv yuav tsum tau muab khaws cia (lub website), JPEG yog qhov kev xaiv zoo tshaj plaws. Tab sis nco ntsoov tias JPEG yog hom ntaub ntawv los sis compressed file. Yog ib qho piv txwv (duab zoo npaum li cas) thaum txuag. Yog tias koj xav tau cov duab zoo, thov xaiv qhov zoo siab (High 8 los yog siab tshaj) cov duab compression mode, daim duab yuav muaj peev xwm siab. Loj; ntawm qhov tsis yog, cov ntaub ntawv loj me me, tab sis cov duab zoo zoo heev txo. Nyob hauv Hom Ntawv Muaj peb qho kev xaiv ntawm Option: Txuj, Optimization, thiab Progressive. Cov txheej txheem hnyav yog rau cov nplooj ntawv web site, peb tuaj yeem npaj theem ntawm cov khoom hnyav. Qhov loj tshaj plaws ntawm JPEG hom yog nws loj tshaj plaws zoo dua. Ntawd ces yog hais, qhov kev sib txuam los ntawm kev nplua nuj ntawm cov kev txwv JPEG rau cov hom ntawv nkaus xwb, thiab qee cov ntaub ntawv poob txhua lub sij hawm ntawm JPEG hom duab tau txais kev cawmdim. Yog li, nws yog feem ntau tsuas yog tsim nyog yuav tsum khaws cov duab hauv JPEG hom ntawm theem kawg ntawm creation.
PDF hom ntawv
PDF yog ib daim ntawv teev lus Portable Lub npe ntawm daim ntawv, uas yog tus tswv ntawm daim ntawv electronic, yog siv dav hauv kev xaib thiab cia hauv Internet cov ntaub ntawv. PDF hom ntaub ntawv muaj kev txuam nrog (JPEG, TIFF LZW thiab CCITT fax tawm tswv yim), uas feem ntau yog plaub qho, uas yog, kab taub, cov ntaub ntawv lub cev, lub cev khaub lig (rooj sib tshuam), thiab cov ntaub ntawv tail. PDF ntaub ntawv tam sim no tau tsim nyob rau hauv ntau txoj hau kev, xws li Adobe's PDF Writer lossis Acrobat pob. Siv tsev av Distiller, ua ke nrog cov ntaub ntawv luam tawm cov ntawv luam tawm ntawm tib lub npe, hloov PS tsab ntawv rau hauv PDF cov ntaub ntawv luam tawm ncaj qha. Tag nrho cov ntaub ntawv nyob rau hauv PDF ntaub ntawv, xws li cov duab tha xim, cov duab nrawm tas li, cov duab monochrome, thiab cov ntawv nyeem thiab cov vector graphics, tuaj yeem siv cov ntaub ntawv sib txawv, uas txhais tau hais tias cov ntaub ntawv PDF feem ntau yog me dua cov ntaub ntawv cov ntaub ntawv thiab cov ntaub ntawv duab. me me.
nyob rau hauv xaus
Muaj ntau ntau lwm cov tswv yim rau kev siv scanner. Nov yog qee cov lus ceeb toom rau kev sojntsuam rau kev sojntsuam ntau hom qauv. Nyob rau hauv tib txoj kev, tus txheej txheem ntawm txuag cov dluab tseem ceeb heev. Raws li lub hom phiaj ntawm daim duab, qhov tseeb cia hom ntawv yuav tsum xaiv kom muaj kev cuam tshuam cov txiaj ntsig zoo thiab qhov zoo ntawm lub tshuab. Tsuas yog los ntawm kev txawj siv cov kev txawj no tuaj yeem luam theej duab thiab cov duab zoo tag nrho.