NVDA OCR with adobe image file
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Cearbhall O'Meadhra
Hi,
I have a scanned image in an Adobe .pdf file. I want to run NVDA’s OCR over it. When I open the document in adobe Acrobat DC I get a message that this is a blank document. I press F6 twice and press enter on the home button. Then I press NVDA+R and I hear “recognising” and below that “result document” but there is no text showing.
I know that this document is an image of scanned text because I can convert it using Abbyy Finereader.
All advice and instructions welcome!
All the best,
Cearbhall
m +353 (0)833323487 Ph: _353 (0)1-2864623 e: cearbhall.omeadhra@...
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Sean Randall
Hi Cearbhall First, are you sure the first page of the file has recognisable text? If it is a cover sheet for example, it may not be readily scannable. OCR will only work with onscreen text, rather than giving you a whole document at once. I have always performed the OCR on the alert about it being a blank document: I don’t understand the purpose of you pressing the home button before doing the OCR I’m a fraid.
Sean.
From: Cearbhall O'Meadhra
Sent: 07 November 2020 0:09 13 To: nvda@nvda.groups.io Subject: [nvda] NVDA OCR with adobe image file
Hi,
I have a scanned image in an Adobe .pdf file. I want to run NVDA’s OCR over it. When I open the document in adobe Acrobat DC I get a message that this is a blank document. I press F6 twice and press enter on the home button. Then I press NVDA+R and I hear “recognising” and below that “result document” but there is no text showing.
I know that this document is an image of scanned text because I can convert it using Abbyy Finereader.
All advice and instructions welcome!
All the best,
Cearbhall
m +353 (0)833323487 Ph: _353 (0)1-2864623 e: cearbhall.omeadhra@...
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Quentin Christensen
Try pressing NVDA+r when you first open the file and get the message about it being blank. On Sat, Nov 7, 2020 at 11:09 AM Cearbhall O'Meadhra <cearbhall.omeadhra@...> wrote:
--
Quentin Christensen Training and Support Manager Training: https://www.nvaccess.org/shop/ Certification: https://certification.nvaccess.org/ User group: https://nvda.groups.io/g/nvda Facebook: http://www.facebook.com/NVAccess Twitter: @NVAccess |
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Cearbhall O'Meadhra
Quentin,
Thanks for esponding!
As soon as I opened the file, I received no response from within the file. I pressed down-arrow and then up-arrow and I got the message “Empty document” as you suggested. I then pressed NVDA + r and got the following response: “This document appears to be empty. It may be a scanned image that needs OCR or it may be a malformed document”
The Result line shows no data at all.
Would it be possible to share this file with you and see what you observe about it? The content is Irish so I don’t expect you to validate the text but, at least, you might be able to determine why the OCR is not happening.
All the best,
Cearbhall
m +353 (0)833323487 Ph: _353 (0)1-2864623 e: cearbhall.omeadhra@...
From: nvda@nvda.groups.io <nvda@nvda.groups.io> On Behalf Of Quentin Christensen
Sent: Monday, November 9, 2020 3:04 AM To: nvda@nvda.groups.io Subject: Re: [nvda] NVDA OCR with adobe image file
Try pressing NVDA+r when you first open the file and get the message about it being blank.
On Sat, Nov 7, 2020 at 11:09 AM Cearbhall O'Meadhra <cearbhall.omeadhra@...> wrote:
-- Quentin Christensen
Web: www.nvaccess.org Training: https://www.nvaccess.org/shop/ Certification: https://certification.nvaccess.org/ User group: https://nvda.groups.io/g/nvda Facebook: http://www.facebook.com/NVAccess |
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CARLOS-ESTEBAN <carlosestebanpianista@...>
Hi all. What happen in the file when you open the PDF with a browser? Firefox, Chrome, Edge and others browsers based in Chromium (Brabe, Opera, etc.) read PDF files, and in Some cases let that NVDA detect the graphics, and you can use the OCR pressing f11 for complete screen before of NVDA+r. Regards.
Carlos Esteban Martínez Macías. Músico (pianista) y ayuda a usuarios ciegos y con discapacidad visual, con el uso de lectores de pantalla y tecnología. Experto certificado en el lector de pantalla NVDA.
Musician (pianist) and also help to the blind people with the use of screen readers and technology. Certified expert in the screen reader NVDA.
De: Cearbhall O'Meadhra
Quentin,
Thanks for esponding!
As soon as I opened the file, I received no response from within the file. I pressed down-arrow and then up-arrow and I got the message “Empty document” as you suggested. I then pressed NVDA + r and got the following response: “This document appears to be empty. It may be a scanned image that needs OCR or it may be a malformed document”
The Result line shows no data at all.
Would it be possible to share this file with you and see what you observe about it? The content is Irish so I don’t expect you to validate the text but, at least, you might be able to determine why the OCR is not happening.
All the best,
Cearbhall
m +353 (0)833323487 Ph: _353 (0)1-2864623 e: cearbhall.omeadhra@...
From: nvda@nvda.groups.io <nvda@nvda.groups.io> On Behalf Of Quentin Christensen
Sent: Monday, November 9, 2020 3:04 AM To: nvda@nvda.groups.io Subject: Re: [nvda] NVDA OCR with adobe image file
Try pressing NVDA+r when you first open the file and get the message about it being blank.
On Sat, Nov 7, 2020 at 11:09 AM Cearbhall O'Meadhra <cearbhall.omeadhra@...> wrote:
-- Quentin Christensen
Web: www.nvaccess.org Training: https://www.nvaccess.org/shop/ Certification: https://certification.nvaccess.org/ User group: https://nvda.groups.io/g/nvda Facebook: http://www.facebook.com/NVAccess
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