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๐Ÿ’ž FairScan > Syncthing > Paperlees-ngx (feddit.org)
submitted 6 months ago* (last edited 6 months ago) by to c/selfhosted@lemmy.world
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It's perfect! Do you guys already do this?

I open a letter, I take it's picture with FairScan. The FairScan-folder on my android device gets syncthinged to the ingest folder for Paperless-ngx on my "server". Paperless imports it, deletes the file and sets the new documents tag to inbox. I decide if the document goes to the binder for important stuff, or if I just toss it in a binder with all the paper I most likely will never touch again. Next time I look at Paperless, I edit all documents with the inbox tag and remove the tag.

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[โ€“] 6 points 6 months ago (1 child)

Its a hacked together shell script. I wanted to learn shell scripting, but I should've probably programmed it in python.

But it basically does this:

  1. scan pages as png via scanimage in gray scale
  2. convert the image into a high contrast b/w one with image magick
  3. sort pages if I have to combine two scans (front and back side)
  4. create a single pdf of all the document pages via image magick
  5. move pdf to the paperless folder

I won't share it because it's really ugly and some of the functionality can be done with paperless native, like combining the pages of two scans. Which would've been easier.

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  • [โ€“] 1 point 6 months ago (1 child)

    Thanks! And that's ok, I'm more interested in the steps than the code itself. Do you apply any optimizations with image magik in step 2?

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  • [โ€“] 1 point 6 months ago

    Yeah, I do this:

    magick "$file" -limit memory 1GiB -limit map 2GiB -threshold 60% -define connected-components:area-threshold=5 -define connected-components:mean-color=true -connected-components 8 output.png

    It makes the scan 1-bit black and white. It mostly removes bright background images, if there are any on the pages. I think it works quite well for basic black and white documents, but color graphics and graphs aren't preserved.

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