59 lines
1.5 KiB
Nix
59 lines
1.5 KiB
Nix
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self: with self; ''
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echo "$@"
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DUPLEX=,Duplex
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removeempty="true"
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[[ $1 == "-s" ]] && {
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DUPLEX=""
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removeempty=false
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shift
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}
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[[ $1 == "-a" ]] && {
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DUPLEX=,Duplex
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removeempty="true"
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shift
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}
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[[ $1 == "-d" ]] && {
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DUPLEX=,Duplex
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shift
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}
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cleanup() {
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echo finalizing pdf file.
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${img2pdf}/bin/img2pdf --pdfa --output /tmp/scan2paperless_$$.pdf /tmp/scan2paperless_$$_*.png && \
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rm -f /tmp/scan2paperless_$$_*.png
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scp /tmp/scan2paperless_$$.pdf pub-solar@paperless.faenix.eu:~/.local/share/scandir \
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&& rm -f /tmp/scan2paperless_$$* \
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|| echo upload failed, retaining file /tmp/scan2paperless_$$.pdf >&2
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}
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trap 'cleanup; exit 1' EXIT
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${sane-backends}/bin/scanimage --device 'brother5:bus1;dev5' --format=png --resolution 300 --batch=/tmp/scan2paperless_$$_%d.png --AutoDeskew=yes --batch-start=10 --source="Automatic Document Feeder(left aligned''${DUPLEX})" -x 210 -y 297
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if $removeempty
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then
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threshold=99
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images=( )
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values=( )
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for f in /tmp/scan2paperless_$$_*.png
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do
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images[''${#images[@]}]=$f
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values[''${#values[@]}]=$(${imagemagick}/bin/convert "$f" -fuzz 02% -fill black +opaque white -fill white -opaque white -format "%[fx:100*mean]" info:)
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done
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for ((i=0;i<''${#images[@]};i++))
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do
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if [[ $(echo "''${values[i]} > $threshold" | ${bc}/bin/bc -l) == "1" ]]
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then
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# bc will output 1 if the comparison is true, 0 otherwise
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echo image "''${images[i]}" was found to be mostly white, removing.
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rm "''${images[i]}"
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fi
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done
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fi
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''
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