Which RecognitionRegionType of OCR?

Questions, comments and suggestions concerning VintaSoft Imaging .NET SDK.

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wittaya@Wac
Posts: 16
Joined: Wed Mar 06, 2019 7:54 am

Which RecognitionRegionType of OCR?

Post by wittaya@Wac » Wed Jul 10, 2019 6:57 am

Hi, Alex

Which "Vintasoft.Imaging.Ocr.RecognitionRegionType" I have to use because I found problem about OCR Thai language.
Image

This is image file Image

p.s. I use Thai & English language for OCR

Best Regard
Wittaya WAC

Alex
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Posts: 1730
Joined: Thu Jul 10, 2008 2:21 pm

Re: Which RecognitionRegionType of OCR?

Post by Alex » Wed Jul 10, 2019 11:57 am

Hi Wittaya,

For understanding your problem we need to reproduce your problem on our side. Please send us (to support@vintasoft.com) a small working application, which allows to reproduce your problem.

Best regards, Alexander

wittaya@Wac
Posts: 16
Joined: Wed Mar 06, 2019 7:54 am

Re: Which RecognitionRegionType of OCR?

Post by wittaya@Wac » Thu Jul 11, 2019 6:53 am

Hi, Alex

I fixed out myself by re-download tessdata for eng and tha,
its work now, but ocr with Thai and English correct around 70% both.

Best Regard
Wittaya WAC

Alex
Site Admin
Posts: 1730
Joined: Thu Jul 10, 2008 2:21 pm

Re: Which RecognitionRegionType of OCR?

Post by Alex » Thu Jul 11, 2019 12:03 pm

Hi Wittaya,
its work now, but ocr with Thai and English correct around 70% both.
What resolution do your document images have? Tesseract OCR provides good text recognition results if document image has resolution 300 dpi or higher.

Best regards, Alexander

wittaya@Wac
Posts: 16
Joined: Wed Mar 06, 2019 7:54 am

Re: Which RecognitionRegionType of OCR?

Post by wittaya@Wac » Thu Jul 11, 2019 12:57 pm

Hi, Alex

I use 200 dpi.

Best Regard
Wittaya WAC

Alex
Site Admin
Posts: 1730
Joined: Thu Jul 10, 2008 2:21 pm

Re: Which RecognitionRegionType of OCR?

Post by Alex » Thu Jul 11, 2019 2:08 pm

wittaya@Wac wrote:
Thu Jul 11, 2019 12:57 pm
I use 200 dpi.
Increase image resolution and I think you will have better OCR results.

Best regards, Alexander

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