Re: [GTALUG] CZUR scanners under Linux
On 2022-11-10 02:21, D. Hugh Redelmeier via talk wrote: | Is there any support for it in VueScan? I don't know VueScan. It is similar in idea to XSane. It supports a lot of (old/obsolete) scanners. I can't use XSane to scan slides on my HP G4010 because it doesn't turn on the light in the lid. VueScan does. The downside to VueScan is that is more of a commercial product. There are versions you can use for free but it may add a watermark to the scanned images. To use it for scanning slides without watermarks I would need to play $149. -- Cheers! Kevin. http://www.ve3syb.ca/ | "Nerds make the shiny things that https://www.patreon.com/KevinCozens | distract the mouth-breathers, and | that's why we're powerful" Owner of Elecraft K2 #2172 | #include | --Chris Hardwick --- Post to this mailing list talk@gtalug.org Unsubscribe from this mailing list https://gtalug.org/mailman/listinfo/talk
Re: [GTALUG] CZUR scanners under Linux
On Mon, Nov 14, 2022 at 12:25 PM Peter King via talk wrote: > > One of the ways in which OCR contributes real value is if you have a large > number of documents that are idiosyncratic in the same way ... If anyone > knows of anything open-source that works reasonably well, I'd love to hear > about it. > For all that Tesseract is a mass-ingestion OCR tool, it can be fine tuned. Whether there are tools for training it that are user-friendly, I don't know. I'd really like a tool that would stop tesseract on matches lower than a certain confidence threshold, and allow manual control of what was stored in the text. A few years ago tesseract was used to create a searchable archive of all available documentation from the Free City of Danzig, the short-lived city state that existed from 1920-1939 in what is now Gdańsk, Poland. Most of the paperwork (and there was a *lot*: very big on public participation in deciding on how they were going to be run) was printed in Fraktur (aka blackletter, gothic or textura). Tesseract was trained to read this script, and now the parameters live in the 'tesseract-ocr-frk' package for all to use. I wish they could have done the same for the then-contemporary written script of Sütterlin, one of the great "go home you're drunk" cursives. For very automatic OCR on Linux, the ocrmypdf tool is quite amazing. Great way of stress-testing your hardware, too. Stewart --- Post to this mailing list talk@gtalug.org Unsubscribe from this mailing list https://gtalug.org/mailman/listinfo/talk
Re: [GTALUG] CZUR scanners under Linux
I'm very grateful to this thread -- I was getting ready to order a CZUR scanner in the expectation that it would work reasonably well under Linux. So much for those expectations. One of the ways in which OCR contributes real value is if you have a large number of documents that are idiosyncratic in the same way -- then you can teach it how to recognize the characters. I have lots of old books with such oddities, and OCR that is optimized for mass use -- read: business paperwork -- just doesn't cut it. If anyone knows of anything open-source that works reasonably well, I'd love to hear about it. On 11/14/22 10:54, Alvin Starr via talk wrote: On 2022-11-14 08:40, Stewart C. Russell via talk wrote: On 10/11/2022 02.21, D. Hugh Redelmeier via talk wrote: Apparently the scan under MacOS (and probably under Windows) has better OCR than under Linux. Grr. We're probably stuck with Tesseract, which — while it's much better than it used to be — is now optimized for mass "good enough" recognition of simple pages. Omnipage dropped its Linux support years ago, and Abbyy Finereader's Linux support is only for ($$$) enterprise. Adobe's now the monster of OCR, but of course it's only built into its rented Acrobat Pro platform. It's a shame that Linux users don't get the nice things that come with hardware that we buy. The page remapping and finger editing-out sound very handy. There are a number of cloud OCR solutions. I have not tested them but I would bet they are of good quality. Of course the trade off is that your making your data available for the cloud provider to monetize along with analyzing by the worlds various security services. A few years ago I tested various text to speech solutions and in the end the only ones of quality that were not insanely expensive were the cloud providers. Initially I was using the google TTS that was bundled into chrome but that got closed down so I ended up with the fee based service. Still the quality was way better than anything we could buy. My guess is that OCR will go that way. The hardware manufacturers will bundle some white labeled cloud service that is somehow limited or hobbled and subject to upsell. -- Peter King peter.k...@utoronto.ca Department of Philosophy 170 St. George Street #521 The University of Toronto (416)-946-3170 ofc Toronto, ON M5R 2M8 CANADA http://individual.utoronto.ca/pking/ = GPG keyID 0x7587EC42 (2B14 A355 46BC 2A16 D0BC 36F5 1FE6 D32A 7587 EC42) gpg --keyserver pgp.mit.edu --recv-keys 7587EC42 OpenPGP_0x1FE6D32A7587EC42.asc Description: OpenPGP public key OpenPGP_signature Description: OpenPGP digital signature --- Post to this mailing list talk@gtalug.org Unsubscribe from this mailing list https://gtalug.org/mailman/listinfo/talk
Re: [GTALUG] CZUR scanners under Linux
On 2022-11-14 08:40, Stewart C. Russell via talk wrote: On 10/11/2022 02.21, D. Hugh Redelmeier via talk wrote: Apparently the scan under MacOS (and probably under Windows) has better OCR than under Linux. Grr. We're probably stuck with Tesseract, which — while it's much better than it used to be — is now optimized for mass "good enough" recognition of simple pages. Omnipage dropped its Linux support years ago, and Abbyy Finereader's Linux support is only for ($$$) enterprise. Adobe's now the monster of OCR, but of course it's only built into its rented Acrobat Pro platform. It's a shame that Linux users don't get the nice things that come with hardware that we buy. The page remapping and finger editing-out sound very handy. There are a number of cloud OCR solutions. I have not tested them but I would bet they are of good quality. Of course the trade off is that your making your data available for the cloud provider to monetize along with analyzing by the worlds various security services. A few years ago I tested various text to speech solutions and in the end the only ones of quality that were not insanely expensive were the cloud providers. Initially I was using the google TTS that was bundled into chrome but that got closed down so I ended up with the fee based service. Still the quality was way better than anything we could buy. My guess is that OCR will go that way. The hardware manufacturers will bundle some white labeled cloud service that is somehow limited or hobbled and subject to upsell. -- Alvin Starr || land: (647)478-6285 Netvel Inc. || Cell: (416)806-0133 al...@netvel.net || --- Post to this mailing list talk@gtalug.org Unsubscribe from this mailing list https://gtalug.org/mailman/listinfo/talk
Re: [GTALUG] CZUR scanners under Linux
On 10/11/2022 02.21, D. Hugh Redelmeier via talk wrote: Apparently the scan under MacOS (and probably under Windows) has better OCR than under Linux. Grr. We're probably stuck with Tesseract, which — while it's much better than it used to be — is now optimized for mass "good enough" recognition of simple pages. Omnipage dropped its Linux support years ago, and Abbyy Finereader's Linux support is only for ($$$) enterprise. Adobe's now the monster of OCR, but of course it's only built into its rented Acrobat Pro platform. It's a shame that Linux users don't get the nice things that come with hardware that we buy. The page remapping and finger editing-out sound very handy. Stewart --- Post to this mailing list talk@gtalug.org Unsubscribe from this mailing list https://gtalug.org/mailman/listinfo/talk
