Sib tham txog cov ntawv nyeem software OCR
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 khoom ntawv, cov ntawv me, cov ntawv nplaum, tag nrho hom tshwj xeeb ntawv xim luam tawm khoom, kev ua si cardand li ntawd.
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Kev ua hauj lwm ntawm Suav paub txiaj ntsim software yog kawm txog kev ua kom lub computer "nyeem ntawv". Cov txheej txheem feem ntau siv cov cuab yeej hluav taws xob hloov yees duab los hloov cov lus Suav los yog lo lus ntawm lub thawv rau hauv ib qho hluav taws xob, thiab xa mus rau lub computer, uas tau lees paub thiab nyeem los ntawm lub computer, yog li ntawd nws yog hu ua qhov muag. Optical Character Recognition (OCR).
OCR kev txhim kho profile
Lub tswv yim ntawm OCR yog thawj zaug xa los ntawm tus kws tshawb fawb German Tausheck hauv xyoo 1929. Tom qab, American Handel Handel kuj npaj tswv yim ntawm kev siv technology los nrhiav cov lus. Qhov kev tshawb fawb ua ntej ntawm kev paub txog cov ntawv sau tau Suav yog Casey thiab Nagy ntawm IBM. Nyob rau xyoo 1966, lawv luam tawm thawj tsab xov xwm ntawm Suav paub txog kev ua cim, uas siv cov qauv kev sib raug zoo los txheeb xyuas cov cim 1000 tawm Suav. Nyob rau xyoo 1970, Japanese kws tshawb fawb pib kawm Suav paub txog tus xeeb ntxwv thiab tau ua haujlwm ntau heev. Kev tshawb fawb ntawm Suav paub txog kev paub hauv Suav teb tau pib lig dhau lawm, thiab cov kev tshawb fawb ntawm OCR pib hauv xyoo 1970s. OCR software thaum ntxov ua tsis tau raws li cov cai tiag tiag vim muaj ntau yam xws li kev pom zoo thiab kev tsim tawm. Nyob rau tib lub sij hawm, vim yog tus nqi siab ntawm cov cuab yeej kho vaj tse thiab qeeb ceev ceev, nws tsis tau mus txog ib qho kev ua tau zoo. Tsuas yog qee lub tuam tsev, xws li cov ntaub ntawv chaw, xov xwm thiab cov ntawv tshaj tawm, siv OCR software. Tom qab xyoo 1986, Tuam Tshoj txoj kev tshawb fawb OCR tau ua tiav zoo, thiab nws tau ua kom muaj kev sib tw nyob rau hauv Suav ua cim tus qauv thiab kev paub txog. Nws tau ua tiav cov ntsiab lus hauv kev tsim kho thiab kev tsim kho kev tsim kho. Muaj ntau qhov chaw tau pib ua cov tshuaj OCR khoom ua ke. Tom qab xyoo 1990, nrog rau ntau qhov kev sib tham ntawm platform scanners thiab qhov nrov tshaj plaws ntawm cov ntaub ntawv siv hluav taws xob thiab cov chaw ua haujlwm automation hauv Suav teb, txoj kev loj hlob ntxiv ntawm OCR tshuab tau zoo heev, thiab qhov OCR tau raug lees paub, cov neeg siv. Kev thov.
Tam sim no, muaj ntau ntau nrov OCR software. Tus OCR uas yog OCR, Hanwang OCR, Zhongjing Shangshu OCR, Danqing OCR, thiab Mengyu OCR. Txawm tias muaj ntau npaum li cas ntawm cov cim suav thiab cov ntawv sau, OCR tshuab tau loj hlob. Muaj ntau OCR software tsis tuaj yeem paub txog xim dub thiab dawb cov ntawv sau ua lus Suav, tab sis kuj pom cov xim grayscale thiab cov xim suav. Kev paub ceev ceev yog ceev thiab qhov tseeb ntawm tus neeg muaj txiaj ntsig yog tshaj 99%. Nws tuaj yeem paub txog ntau yam ntawv xws li Nkauj, Npau Siav, thiab Scorpion. Tsoos; tuaj yeem paub txog ntau yam kev sau ntawv, hom ntawv sib txawv me ntsis; qee qhov OCR software kuj tuaj yeem teev cov duab, cov lus. Tib lub sijhawm, tau ua tiav ntawm kev kawm ntawm kev sau lus Suav txhais lus, thiab qhov tseeb tau txais txiaj ntsig tau ntau tshaj 70%.
OCR software daim ntawv thov
Hauv kev lag luam scanner, muaj ntau hom chaw ua haujlwm thiab tsev luam coj mus muag nrog OCR software. Piv txwv, cov duab cwj pwm violated nrog OR, violet scanner yog nruab nrog Shangshu OCR, thiab Mustek scanner yog nruab nrog Danqing OCR. Lub tshuab scanner thiab OCR software qhia tag nrho cov txheej txheem ntawm cov tswv yim ntawm daim ntawv rau cov ntawv nyeem.
Cov ntaub ntawv thaij siv feem ntau siv nyob rau hauv qhov chaw ua haujlwm. Cov ntaub ntawv muaj feem xyuam nrog cov ntawv tshaj tawm hauv ntawv xov xwm, cov ntawv xov xwm, thiab lwm yam. Luam tawm los ntawm lub tshuab scanner, thiab tom qab ntawd OCR qhia txog, lossis muab khaws cia ua ib qho file file, tom qab OCR tau lees paub, thiab cov ntaub ntawv duab tau hloov mus ua cov ntawv nyeem. Cov ntaub ntawv lossis lo lus xa tseg cia.
Tsis tas li ntawd, kev cia thiab kev sib kis ntawm cov ntaub ntawv tsis yog cov nqi qis xwb, kev ua haujlwm zoo, tab sis tseem yoog raws li kev xav tau ntawm kev sib tw thiab kev sib txuas network. Tam sim no, muaj ntau daim ntawv khaws nyiaj zoo xws li cov phau ntawv, ntawv xov xwm, ntawv xov xwm thiab sab nraud hauv Suav teb, thiab nws yog ceev hloov lawv mus rau hauv cov ntaub ntawv hauv xov tooj. Piv txwv, tsim kom muaj cov ntawv nyeem hauv koos pij tawj tau hais tias cov ntawv yuav muab luam tawm los ntawm nplooj ntawv, thiab qhia txog OCR software ntau qhov kev qhia ntawm phau ntawv sau, uas ua rau luv sij hawm nkag, txo kev siv zog, txuag lub zog thiab txo nqi. Txhim kho qhov tseeb ntawm kev nkag teb chaws, kev ua hauj lwm zoo thiab niaj hnub chaw ua haujlwm automation.
Tam sim no, OCR cov software thiab scanners tau muab los siv rau ntau lub tswv yim ntawm cov ntaub ntawv hnub nyoog, xws li cov tsev qiv ntawv, cov ntawv qhia txog ntau yam, thiab kev txheeb xyuas cov ntaub ntawv tiv thaiv kev lag luam thiab cov nqi se. Nrog txoj kev loj hlob thiab kev sib koom ntawm lub network thiab cov ntaub ntawv, nws daim ntawv thov yuav ua ntau dua thiab ntau dua.
Muaj pes tsawg leeg ntawm OCR lawv
Kev ua haujlwm ntawm Suav paub txiaj ntsim suab paj nruag software OCR yog kom paub txog ntau yam graphics los yog cov duab ntawm txhua tus Suav ua cim sau tseg rau hauv Suav cov ntawv, luam tawm los yog txhais tes ntawm lub computer, thiab kos cim cov cim Suav. Yog li no, suav paub lub suab qiv yog thaum kawg qhov teeb meem duab pom. Vim ntau ntau cov cim suav, txawv fonts, fonts, thiab cov txheej txheem, cov txheej txheem ntawm Suav cim paub yog qhov nyuaj heev. Schematic daim duab ntawm OCR software workflow, raws li qhia hauv qab rooj nram qab no:
Cov ntaub ntawv cov ntaub ntawv → scan input → duab ua haujlwm → layout faib → ntawv nyeem → text editing → document storage
Vim yog qhov chaw thiab kev siv cov scanners thoob plaws, OCR software tsuas xav muab ib qho kev sib tshuam nrog lub tshuab thiab siv cov software tsav scanner. Yog li, OCR software yog tsim los ntawm kev ua duab ua qauv, ib qhov kev faib qhov nruab nrab, ib phau ntawv nyeem cov ntawv nyeem, thiab phau ntawv kho lus.
1. Cov duab ua duab
Cov duab ua module ua tau muaj xws li cov ntaub ntawv xa khoom, duab scaling, thiab cov duab hloov duab. Tom qab cov tswv yim los ntawm lub tshuab luam ntawv, cov ntaub ntawv tsim cov ntaub ntawv duab, thiab cov duab ua qauv yuav ua kom daim duab tshem cov xim thiab khawb. Yog hais tias daim duab tsis hloov kom raug, daim duab yuav raug hloov los ntawm kev siv tus kheej los yog cia li, kom tsim tau cov neeg mob zoo rau cov ntawv nyeem. Cov nyiaj tau txais txiaj ntsim zoo dua.
2. Module Layout division
Qhov nruab nrab ntawm qhov kev faib qhov kev faib sab nraud yog muaj qhov sib faib khoom faib thiab hloov division, uas yog, kev nkag siab ntawm qhov tsim, lo lus cais, kev hloov cev, thiab lwm yam kev xaiv lossis qhov kev xaiv yuav raug xaiv tau. Lub hom phiaj yog qhia OCR software los cais cov khoom, ntxhuav, thiab lwm yam hauv tib qho kev teeb tsa, kom lawv tuaj yeem ua haujlwm tiav thiab ua li cas.
3. Ntawv Vas Thiv ID
Cov ntawv nyeem Vocabulary yog qhov tseem ceeb ntawm OCR software, ib qho yooj yim ntawm cov ntawv nyeem cov txheej txheem, raws li qhia hauv qab no. Cov ntawv nyeem cov ntawv nyeem ua tau ua "nyeem" rau ntawm cov lus Suav lus, tab sis nws tsis tuaj yeem ua ntau kab thiab yuav tsum tau hla kab ntawm kab. Rau cov cim Suav, nws yog feem ntau pom los ntawm ib lo lus thiab ib lo lus, uas yog, tib lub ntsiab lus paub, thiab ces ua haujlwm zoo. Cov ntawv nyeem cov ntawv nyeem tawm cov qauv ntawm cov qauv sib txawv ntawm cov ntawv suav, ua tiav cov txiaj ntsig, nws yuav pom cov lus txawv, thiab muaj lub luag haujlwm xws li ua ntej thiab tom qab lub koom haum.
Luam theej duab tswv yim thawj → kab txiav → lo lus txiav txim → paub txog haiv neeg → paub txiaj ntsim paub → paub lo lus ┐ ┐
└- → Ua ntej qhov kev faib tawm feature extraction → Feature qiv (phau ntawv txhais lus) → Kev tawm tswv yim
4. Cov ntawv kho cov ntawv nyeem
Cov ntawv kho lus tseem ceeb hloov thiab kho cov ntawv OCR uas tau pom zoo. Yog lub tshuab pom tau tias nws tsis yog lawm, cov ntawv nyeem yuav muab tso rau hauv liab liab los yog xiav, thiab muab cov ntawv zoo sib xws rau kev xaiv, thiab xaiv tus editor rau cov zis.
Yuav siv OCR software li cas
Txawm hais tias muaj ntau ntau hom OCR software, lawv siv zoo sib xws. Thawj kauj ruam yog luam ntawm daim ntawv thiab ua kom OCR paub txog. Kev siv OCR software yog raws li nram no:
1. Daim ntawv luam xa
Yuav kom siv OCR software rau cov ntawv nyeem, cov ntaub ntawv tuaj yeem raug luam tawm ncaj qha rau hauv OCR software. Tom qab khiav OCR software, OCR software interface yuav tshwm.
Muab cov ntawv pov tseg rau ntawm sab iav ntawm lub tshuab scanner kom lub sab yuav tsum tau luam tawm ntsej muag rau sab iav sab ntawm lub tshuab luam yeeb nrog sab saum toj kawg ntawm daim ntawv sau cia, mus ua ke nrog tus ntug ntawm tus pas ntsuas, thiab tom qab ntawd ces lub scanner them rau kev npaj rau kev luam. Nias lub khawm ntawm "Scan" hauv lub qhov rai kom nkag mus rau lub tshuab luam ntawv software rau kev luam theej duab. Kev soj ntsuam yuav tsis piav qhia ntawm no. Txawm li cas los xij, nws yuav tsum raug sau tseg tias qhov kev daws teeb meem tuaj yeem teev cia ntawm 200 ~ 400dpi. Rau cov ntawv luam cov ntaub ntawv, nws tseem ceeb heev kom kho txoj kev ci ci.
2. OCR pom zoo
Rau kev yooj yim ntawm kev lag luam, xaiv kev xaiv los ntawm cov zaub mov thiab ntau lub icons tshwm rau sab laug ntawm lub qhov rais.
Rau kev siv zoo, xub qhia cov cim rau sab laug ntawm qhov screen los ntawm sab saum toj mus rau nram qab kawg:
"Zoom hauv" lub cuab tam: kom loj hlob cov duab; "zoom tawm" lub cuab tam: kom txo cov duab; "teeb tsa thaj tsam Vocabulary": qhov kev teeb tsa thaj chaw Vocabulary; "teeb tsa kev txiav txim siab txog kev pom zoo" cuab tam: kev teeb tsa qhov kev paub txog kev paub; Rho tawm Vev-xaib Cheeb Tsam Thaj Chaw: tshem tawm thaj chaw Vam Meej; "Lawm duab nrov" cuab yeej: tshem tawm thaj chaw hauv daim duab; "Rotate Image" cuab tam: tig cov duab 90 °, 180 ° lossis 270 °; Tilt Correction cuab yeej: Rau kev ceev cov duab hauv phau ntawv.
Cov kauj ruam rau OCR yog:
(1) Tom qab daim ntawv teev cia, cov ntawv nyeem yuav tsum lees paub tias tshwm hauv qhov rais yog qhov tsawg heev. Ua ntej, xaiv "Zoom hauv" lub cuab tam kom tsim tsa daim duab kom cov duab zoo dua. Yog tias tsim nyog, koj tuaj yeem xaiv qhov "zoom out" cuab tam kom txo qhov luaj li cas ntawm qhov screen.
(2) Yog hais tias qhov kev tshuaj ntsuam yuav tsum tau tig los ntawm 90 °, 180 ° lossis 270 °, siv cov cuab yeej duab Rotate los hloov cov duab. Yog tias lub vijtsam text yog tilted, xaiv lub Tilt Correction tuam kho qhov screen.
(3) Xaiv qhov "Lees Teeb Thaj Chaw" cuab tam thaum lub sij hawm paub txog, thiab kos duab cheeb tsam kom paub txog tus cwj pwm ua cim. Hauv qhov no, ntau qhov chaw muaj peev xwm ua tau raws li qhov xwm txheej. Yog hais tias cheeb tsam ntawm cheeb tsam tsis yog lawm, koj tuaj yeem siv Tus Xov Tooj Chaw Pov Hwm Them Nias kom rho tawm qhov chaw uas raug xaiv.
(4) Yuav kom txhim kho tau tus neeg tau txais txiaj ntsig, yog tias qhov chaw xaiv tsa muaj suab nrov los yog duab tsis zoo, tus "Lwv Cov Nruab Nrab" cuab tam tau xaiv los tua cov suab nrov me ntsis. Yog tias koj xav tau lwv ua ib daim, koj tuaj yeem xaiv qhov Wip Image Block cuab yeej.
(5) Nias qhov "Recognize" icon, ces OCR cov zaub yog ua cov ntawv nyeem, thiab xa mus rau "Lub Suab Paj Nruag", thiab cov ntawv nyeem yuav raug muab tso tawm kauj ruam los ntawm kauj ruam, thiab mam li xa mus rau "Daim Ntawv Pov Ntawv Tawm" pom.
Muaj ntau cov OCR software muaj cov kev hloov kho cov ntawv nyeem uas pom cov ntawv nyeem uas tej zaum yuav yog erroneous, tshwm nyob rau hauv cov xim tseeb, thiab tuaj yeem hloov kho.
(6) Khaws cov ntaub ntawv raug lees paub tias yog cov ntaub ntawv (TXT) lossis ib qho ntaub ntawv sau cia RTF.