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Comment on 💞 FairScan > Syncthing > Paperlees-ngx

No, I use a printer/scanner combo for scanning my files. I trigger a shell script via HomeAssistant which starts the scanner, cleans and fixes the order of the pages for two sided documents, and then puts them into the paperless folder.

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RazzleDazzle@discuss.tchncs.de ⁨1⁩ ⁨month⁩ ago
would you mind to elaborate more on the script? Also, what output format do you use from the scanner?

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- llii@discuss.tchncs.de ⁨1⁩ ⁨month⁩ ago
  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:
  
  scan pages as png via scanimage in gray scale
  
  convert the image into a high contrast b/w one with image magick
  
  sort pages if I have to combine two scans (front and back side)
  
  create a single pdf of all the document pages via image magick
  
  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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  - RazzleDazzle@discuss.tchncs.de ⁨1⁩ ⁨month⁩ ago
    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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    llii@discuss.tchncs.de ⁨1⁩ ⁨month⁩ 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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