Daniel Reetz, the founder of the DIY Book Scanner community, has recently started making videos of prototyping and shop tips. If you are tinkering with a book scanner (or any other project) in your home shop, these tips will come in handy. https://www.youtube.com/channel/UCn0gq8 ... g_8K1nfInQ

SpreadPi: The new DIY Book Scanner control system.

Johannes Baiter's Spreads and SpreadPi are the latest control systems and postprocessors for DIY scanning. http://spreads.readthedocs.org
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daniel_reetz
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SpreadPi: The new DIY Book Scanner control system.

Post by daniel_reetz » 22 Mar 2014, 20:51

I'm extremely proud to show you this preview of what might be the biggest thing to happen to DIY Book Scanning since the advent of cheap cameras: Johannes Baiter's SpreadPi.



If you're interested in trying this out, you will need a Raspberry Pi and Canon Powershot A2200 or Powershot A1400IS cameras. We're looking for someone skilled in Python to write an interface for other cameras, detailed here.

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Re: SpreadPi: The new DIY Book Scanner control system.

Post by jbaiter » 23 Mar 2014, 18:21

Great video Daniel, thank you so much for taking the time :-)

Just two minor remarks:
  • The main repository for spreads is DIYBookScanner/spreads, not jbaiter/spreads. The latter has not been updated in quite a while
  • The time between the triggering of a capture and the display of the view images in the application can be greatly reduced by using a faster SD-Card in the Raspberry Pi. I myself use a Class10 card that achives ~20mb/s and while it's still not instantaneous, it matches my scanning speed (~1400 pages/hour) quite well so I don't have to wait for review images before triggering another shot.
spreads: Command-line workflow assistant

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Re: SpreadPi: The new DIY Book Scanner control system.

Post by daniel_reetz » 23 Mar 2014, 23:29

Thanks, jbaiter, should have cleared it with you first. I'll make some comments on the YT video in the next day or so to be sure people understand.

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Re: SpreadPi: The new DIY Book Scanner control system.

Post by Jay Dugger » 24 Mar 2014, 11:06

Thank you for announcing this work. I look forward to using it.

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Re: SpreadPi: The new DIY Book Scanner control system.

Post by markvdb » 28 Mar 2014, 05:44

Hi!

I take care of the raspberry pi build (spreadpi) and the http://buildbot.diybookscanner.eu build infrastructure. Any issues with those, don't hesitate to contact me.

Regards,

Mark
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Re: SpreadPi: The new DIY Book Scanner control system.

Post by kifty » 29 Apr 2014, 19:28

This is so fantastic. I've been daydreaming about the potential for Raspberry Pi + Spreads + DIY Scanner, and you guys went ahead and did it! I just picked up two A1400s and I'll let you know how it goes.

Jonathan Kift, Production Librarian, NNELS (nnels.ca)

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Re: SpreadPi: The new DIY Book Scanner control system.

Post by daniel_reetz » 30 Apr 2014, 10:38

Great news! FYI the buildbot is being repaired right now- be sure to check in when you get your stuff and we'll get you the latest image.

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Re: SpreadPi: The new DIY Book Scanner control system.

Post by spomwii » 03 May 2014, 15:39

This is so cool! I have not been able to get a fast enough SD card yet but will test as soon as I get one :)

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Re: SpreadPi: The new DIY Book Scanner control system.

Post by kifty » 06 May 2014, 13:32

OK, I have all the requisite pieces, but the "latest image" link is still broken. I grabbed the most recent image from buildbot (Apr 24) to play with, but if you have a more recent one, that would be great.

Thanks,
~Jonathan

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Re: SpreadPi: The new DIY Book Scanner control system.

Post by markvdb » 06 May 2014, 13:37

Hi,

The latest one (April 24) has some problems that I am still investigating. I fixed this temporarily for you by pointing spreadpi_latest.img.gz to an older build.

Mark
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