These "scanners" basically look like a webcam mounted on an arm atop an
upside-down letter "L" (or Greek capital letter gamma).
They look like the best option for scanning old books that don't require
laser-printer quality resolution.
One such scanner is reviewed by CNX software:
https://www.cnx-software.com/2023/07/23/czur-et24-pro-book-scanner-review-with-ubuntu-22-04-linux/
The author notes that the scanner practically identifies itself as a
webcam ("UVC"). So in theory it should "work" on any GNu/Linux computer,
with only the Windows/Mac user software as the major difference.
I've also seen in various online platforms (e.g. AliExpress) similar,
but much cheaper no-brand models. So my question is, does anybody here
have such a device? Is it reasonable to assume that all scanners of this
type are UVC-compatible devices?
https://en.wikipedia.org/wiki/USB_video_device_class
If these devices are indeed all UVC, my idea is to have ffmpeg take JPEG
or PNG snapshots of the material I'm scanning. Or otherwise simply take
one continuous video and later simply pause and screenshot individual
frames.
Note: I've searched the sane backends page:
http://www.sane-project.org/sane-backends.html#VIDEO
I can't find any reference to UVC-device support
