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OCR PDF Mafunso Ofala
Kodi OCR PDF imasintha bwanji sken kuti ikhale mawu?
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M’njira yoti, tsamba lililonse limatulutsidwa, limayenda m’njira ya Tesseract yozindikira malemba m’zinenero zoposa 100, ndipo mawu odziwika amalembanso m’njira yosaoneka bwino yokhala ndi malemba opanda malire ophatikizidwa m’chithunzi choyamba – choncho tsambali limawoneka ngati silisintha koma limatha kufunidwa ndi kusankhidwa. Chithunzicho chimakhalabe chofanana ndi momwe chilili – malemba odziwika bwino amawoneka ngati saoneka m’mbuyo mwa chithunzicho, motero kufunsira ndi kusankha kumagwira ntchito popanda kusintha mawonekedwe.
Kodi ndi zilankhulo ziti zomwe zingadziwe?
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Kuposa 100, kuphatikizapo Latin, Cyrillic, Greek, Arabic, Hebrew, Chinese, Japanese, Korean ndi Indian scripts.Kunena kuti ndi mtundu uti woyembekezera kumawonjezera kulimba mtima kuposa kulola kuti aganizire.
Kodi mtundu woyamba umakhudza kuzindikira?
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PDF imakonza tsambalo: fonts, vector, raster images ndi text coordinates zimathamangitsidwa kuti aliyense wowerenga aone mawonekedwe ofanana. Momwe tsambalo limasungira limasankha zomwe chisankho ndi zithunzi zazithunzi zomwe wodziwa ayenera kuchita.
Chomwecho chokhacho cha PDF pano?
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Yes — PDF ndi graph ya chinthu, si chithunzi cha tsamba, choncho malemba amakhala osankhika ndipo ma vector amakhala owoneka bwino ngakhale kuti zinthu za raster zilimo. Zimakhudza zimene wodziwazo angaone.
Kodi ndi yoyenera bwanji?
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Pa 300 DPI yoyera yosindikizidwa, yokwanira kuti zifukwa zikhale zosadziwika komanso makamaka m'mawu odziwika bwino. Kuyenera kudziwika kuti kudalirika kumagwa kwambiri ndi kuwonekera kotsika, kuzungulira, zithunzi kuchokera pakamera ya foni, mafonti osadzipereka ndi kulemba - kulemba kwamanja sichinthu chomwe chimachitika.
Kodi ndiyenera kuyang'ana pa zotsatira zabwino?
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300 DPI mu grayscale ndi malo abwino. Pambuyo pa 200 DPI, mawonekedwe azithunzi amayamba kuwonongeka; pamwamba pa 400 DPI simupeza chilichonse ndipo mumalipira ndalama za fayilo ndi nthawi yogwiritsira ntchito.
Kodi ndingapeze bwanji OCR PDF?
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PDF iliyonse yovomerezeka, kuphatikizapo zomwe zapangidwa ndi scanner, ndi wolemba mawu kapena ndi wosindikiza. Fayilo ndi mawu achinsinsi a mwini amene amaletsa kusintha kokha amayang'aniridwa; fayilo yomwe ikufuna mawu achinsinsi a wogwiritsa ntchito kuti itsegulidwe siyiyang'aniridwa, ndipo sitifuna kuchotsa kusungika.
Kodi pali malire a kukula kwa fayilo pa OCR PDF?
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Yes: ndalama zaulere zimatha kusamalira mafayilo mpaka 25 MB, zomwe zimakhudza zambiri zamalamulo ndi mabizinesi koma sizovuta kwambiri kujambula fayilo pa 600 DPI; Ghostscript ndi qpdf amachita ntchito. Scanned PDFs ndi chinthu chofala chomwe chimapitilira, ndipo kutsitsa fayiloyo kumakhala kokwanira kuti muyibwezeretse pansi.
Kodi OCR PDF idzachepetsa khalidwe la ma PDF anga?
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Malemba ndi ma vector a m'mabuku ndi zinthu zosaoneka bwino, choncho amawoneka bwino kwambiri pa zoom iliyonse ngakhale kuti zinthu zitha kuchitika. Ndi zithunzi za raster zophatikizidwa zokha zomwe zingakhudze, ndipo ndi ngati ntchito yomwe mwasankha idzazisintha.
Kodi ndingagwiritse ntchito OCR PDF pa ma PDF angapo pamodzi?
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Yesani - kutsitsa set ndi iwo amachita m’njira yofanana pansi pa set imodzi ya zosankha, zomwe ndi zofunika kuchita ntchito yolemba ntchito pano kuposa kuwonekera mwa desktop wowerenga.
Kodi mabuku olemba, maulalo ndi mafomu adzakhalabe?
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Kuwala, maulalo amkati ndi ma annotations amasungidwa pamenepo ntchito imalola. Digital signatures ndi kulephera: chilichonse kusintha kwa fayilo mwangozi kulepheretsa chitsimikizo, chifukwa chomwe chitsimikizo ndicho choyenera.
Kodi OCR PDF imawononga chiyani?
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OCR PDF ndi ufulu popanda akaunti, ndipo palibe chowonjezera kwa deta. Upload ndi zotsatira zimathetsedwa mwamsanga za 24 maola pambuyo ntchito, zomwe zimasiya nthawi yotsitsa zotsatira.
