NAPS2 ( https://www.naps2.com/ ) is also a similar open-source app with OCR built in.
What OCR engine does it use and is it any good? (I see tesseract mentioned in the dependencies?)
Show HN: OpenScan – open-source document scanner app
31–40 of 40 posts
Re: Show HN: OpenScan – open-source document scanner app
#32A related open source library for iOS. https://github.com/wetransfer/wescan
Btw: The Apple Notes application has this functionality built-in if you are just interested in scanning.
And in the files app, long tapping gives the option to scan a document, which works great. I’m trying to retain fewer pieces of paper and this is super convenient.
Re: Show HN: OpenScan – open-source document scanner app
#33NAPS2 ( https://www.naps2.com/ ) is also a similar open-source app with OCR built in.
That one appears to be for the desktop; is there an Android link that I overlooked?
Re: Show HN: OpenScan – open-source document scanner app
#34User Experience: This app does not open scan dialog immediately, annoying. Features: This app does not fix perspective distortion. Office Lens ( https://play.google.com/store/apps/details?id=com.microsoft.... ) is so much better, I get rectangular image without any hints, to say nothing about manually selecting anything. Office Lens really creates this https://play-lh.googleusercontent.com/AgErNUVn_Jg41jSQO2p2CF... f…
If it doesn't fix perspective distortion then in what sense is it a document scanner and not just a camera app?
Re: Show HN: OpenScan – open-source document scanner app
#35Earlier quoted context omitted.
Btw: The Apple Notes application has this functionality built-in if you are just interested in scanning.
And in the files app, long tapping gives the option to scan a document, which works great. I’m trying to retain fewer pieces of paper and this is super convenient.
Wohooo! And: What is it with Apple and not documenting features?
Re: Show HN: OpenScan – open-source document scanner app
#36User Experience: This app does not open scan dialog immediately, annoying. Features: This app does not fix perspective distortion. Office Lens ( https://play.google.com/store/apps/details?id=com.microsoft.... ) is so much better, I get rectangular image without any hints, to say nothing about manually selecting anything. Office Lens really creates this https://play-lh.googleusercontent.com/AgErNUVn_Jg41jSQO2p2CF... f…
I always wanted a tool to place a polygon (even just four corners) and ability to set an aspect ratio (custom or preset like 4:3, 16:9 and A-series) and have perspective fixed image or just move vertices around (just like you expect by having a textured polygon). I would like to have this tool as a part of GIMP and a standard around light image editing tools like many viewers are. Perspective correction tools are eit…
I made a simple GUI in python which essentially wraps OpenCV's getPerspectiveTransform/warpPerspective. It let's you select the four corners, chose an aspect ratio and do some simple postprocessing. I was working on edge detection, but it's not working well right now.
I will try to put it on github. EDIT: https://github.com/Dobatymo/dewarp Few years old and very unpolished though
Re: Show HN: OpenScan – open-source document scanner app
#37User Experience: This app does not open scan dialog immediately, annoying. Features: This app does not fix perspective distortion. Office Lens ( https://play.google.com/store/apps/details?id=com.microsoft.... ) is so much better, I get rectangular image without any hints, to say nothing about manually selecting anything. Office Lens really creates this https://play-lh.googleusercontent.com/AgErNUVn_Jg41jSQO2p2CF... f…
If it doesn't fix perspective distortion then in what sense is it a document scanner and not just a camera app?
(Disclaimer, I have not used the app)
Presumably it outputs multiple images combined as a pdf/word as opposed to just images.
Re: Show HN: OpenScan – open-source document scanner app
#38User Experience: This app does not open scan dialog immediately, annoying. Features: This app does not fix perspective distortion. Office Lens ( https://play.google.com/store/apps/details?id=com.microsoft.... ) is so much better, I get rectangular image without any hints, to say nothing about manually selecting anything. Office Lens really creates this https://play-lh.googleusercontent.com/AgErNUVn_Jg41jSQO2p2CF... f…
I've been using the Adobe equivalent, and it seems to work pretty well. It's not quite as good as a flatbed scanner, but it does a good-enough job with nothing more than my existing phone.
Still, if there were a better one, I'd use it. Its interface is slightly clunky and it's only so-so with documents that have been folded. Is the MS one any better?
Re: Show HN: OpenScan – open-source document scanner app
#39User Experience: This app does not open scan dialog immediately, annoying. Features: This app does not fix perspective distortion. Office Lens ( https://play.google.com/store/apps/details?id=com.microsoft.... ) is so much better, I get rectangular image without any hints, to say nothing about manually selecting anything. Office Lens really creates this https://play-lh.googleusercontent.com/AgErNUVn_Jg41jSQO2p2CF... f…
I've been using the Adobe equivalent, and it seems to work pretty well. It's not quite as good as a flatbed scanner, but it does a good-enough job with nothing more than my existing phone. Still, if there were a better one, I'd use it. Its interface is slightly clunky and it's only so-so with documents that have been folded. Is the MS one any better?
Tried both, Adobe Scan and Office Lens, and liked MS one more, because its default “auto” filter produced more legible documents (better contrast and brigthness) than the Adobe’s “auto”, IMO.
Re: Show HN: OpenScan – open-source document scanner app
#40Earlier quoted context omitted.
I've been using the Adobe equivalent, and it seems to work pretty well. It's not quite as good as a flatbed scanner, but it does a good-enough job with nothing more than my existing phone. Still, if there were a better one, I'd use it. Its interface is slightly clunky and it's only so-so with documents that have been folded. Is the MS one any better?
Tried both, Adobe Scan and Office Lens, and liked MS one more, because its default “auto” filter produced more legible documents (better contrast and brigthness) than the Adobe’s “auto”, IMO.
Thanks for the tip!