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Home > Resource > PDF > paub Optical cim Vocabulary (OCR)

Tej kev paub cov Optical ua cim Vocabulary (OCR)

OCR yog dab tsi?

Optical cim Vocabulary, feem ntau yog abbreviated rau OCR, yog cov neeg kho tshuab los yog hauv txhais cov lus scanned dluab ntawm handwritten, typewritten los yog tsab ntawv rau hauv cov ntawv nyeem lub cav-encoded.

Vim li cas ho siv OCR?

Plhuav OCR yuav muab siv mus siv tau ntau yam ntaub ntawv, xws li scanned ntawv tej ntaub ntawv, PDF ntaub ntawv los sis cov dluab yuav los ntawm ib cov koob yees duab hauv editable thiab koj cov ntaub ntawv. Nyob rau hauv tej kev tej kev kawm (xws li tau qiv, chaw ua hauj lwm), phav phav phau ntawv thiab cov ntaub ntawv yog scanned xwm yeem rov thiab archive. Muaj scanner pawg yuav siv tau ntawm cov thawj ntawv cov ntaub ntawv, uas ua rau cov duab-raws li scanned ntaub ntawv hom PDF duab. Qhov loj qhov teeb meem zauv thiab storing tej loj tagnrho scanned ntaub ntawv uas yog tus cev tsis mus nrhiav kom tau ib kab lus hais los yog lub npe nyob rau hauv ib daim ntawv. Kuj tsis muaj ntawv yuav tau highlighted, tau theej, los sis hloov, vim tias cov ntaub ntawv no muaj ib daim duab loj as opposed to tus ntawv cim.

OCR Sample

Ua ntej yuav ua tau zoo OCR, thaj tsam nyob rau sab tas nrho yog xaiv thiab highlighted thiab tsis muaj ntawv yuav tau nrhiav thiab edited.

Tom qab ua tau zoo OCR, phau ntawv nyob rau sab yuav tau xaiv uas xaiv tuam, koj yuav mus nrhiav thiab hloov ua cim, lo lus, thiab paragraphs tau yooj yim.

Ua Wondershare PDF OCR cov cuab yeej pab koj li cas?

Wondershare PDF OCR cov cuab yeej pab tau koj paub txog cov ntawv luam ntawm scanned PDF sai thiab meej lawm thiab khaws cia qhov txheeb xyuas tau kuaj pom yog nyob rau hauv ntau editable tawm tswv yim.

Wondershare PDF Editor Pro for Mac: nrog koj OCR neeg thiab hom ntawv preservation, pab kom koj mus nrhiav, kho, thiab luam ntawv nyob hauv lub scanned lossis duab kuas PDF ncaj qha rau ntawm Mac. Nws kuj yuav ua rau koj export scanned PDF rau cov formatted ntawv nyeem raws li lo lus, Excel, PowerPoint, EPUB, HTML, thiab tawm tswv yim los ntawm phau ntawv.

Wondershare PDF Converter Pro: cim tau cov ntawv luam ntawm scanned PDF uas koj raug OCR thiab yuav siv ntau scanned PDFs tau mus raws li ntawv lo lus, Excel, PowerPoint, EPUB, HTML, thiab phau ntawv nev qhov rai.


Wondershare PDF Converter Pro for Mac: cim tau cov ntawv luam ntawm scanned PDF uas koj raug OCR thiab yuav siv ntau scanned PDFs tau mus raws li ntawv lo lus, Excel, PowerPoint, EPUB, HTML, thiab phau ntawv nev nyob Mac.

Yuav ua li cas rau OCR Vocabulary zoo?

OCR Vocabulary zoo yog nyob ntawm qhov zoo tshaj ntawm cov duab, uas heev nyob rau hauv tej chaw siv lub sij hawm daim ntawv xa txoj kev lom zem ntau. Xav tau zoo OCR Vocabulary zoo koj cov ntaub ntawv scanned, ntawm no yog ib co tswv yim kom xa daim ntawv:

Font yog tsawg heev
Kom tau kev pom Vocabulary, luam theej duab sau hauv me me fonts ntawm ntau dua qhov uas yuav kho cov ntaub ntawv.
Koj yuav qhia cov rooj yam nyob rau hauv lub rooj khoom teejtug uas yog tus tsav haus dejcawv ScanSourceSettings .


Qhov duab Daws pom zoo
Reader 300 tawm dpi rau raug sav (luam tawm nyob rau hauv fonts muaj raws li cov 10 pt lossis loj)
Reader 400-600 dpi rau cov ntawv luam tawm hauv me fonts (9pt los yog me)

Nyob Brightness
Koj yuav tsum tau kho qhov chaw ntawd brightness thaum PP nyob rau hauv hom black-and-white. Koj yuav qhia cov brightness yam nyob hauv lub Brightness khoom teejtug uas yog tus tsav haus dejcawv ScanSourceSettings . Tus nqi nruab nrab ntawm 50% yuav tsum suffice feem ntau.
Yog tus duab resulting muaj ntau "torn" los yog "daig" together ntawv, troubleshoot siv cov lus hauv qab no.

Koj cov duab zoo li no Tswv yim
Good Quality Cov duab no yog tsim rau Vocabulary
Very Light
cim yog "torn" los yog pom pom
  • Txo tus brightness yuav ua rau cov duab ib tsos tsaus tsawv.
  • Luam theej duab nyob hauv grayscale. Brightness yuav tau tuned ua tau.
  • Very Dark
    cim distorted heev, yog tua ua ke, los yog ua
  • Nce lub brightness cov duab ua zog
  • Luam theej duab nyob hauv grayscale. Brightness yuav tau tuned ua tau.
  • Sau tau zoo
    Tsis zoo ua ntaub ntawv "suab" (i.e. random dub dots los yog speckles), nrog rau ntawv qhov muag plooj thiab sis tsis ncaj, los skewed kab thiab ciam teb rau lwm lub rooj los yog tshwm tau kev xa tej chaw. Piv txwv li, no fax mus thiab xov xwm:

    Print Quality

    Ntaub ntawv uas tsis zoo yeej zoo scanned hauv grayscale. Thaum xa hauv grayscale, qhov kev pab yuav xaiv kev noj brightness tus nqi txiav.
    Hom Grayscale tseem muaj feem los yog xav paub ntxiv txog cov ntawv nyob rau hauv cov ntawv nyeem scanned after Vocabulary zoo tau thaum pom txiaj muaj ntaub ntawv ntawm nruab nrab rau qhov tsis zoo.


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