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52 lines
1.7 KiB
Bash
52 lines
1.7 KiB
Bash
#!/bin/bash
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# 2022 Dave Bechtel
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# Create an index .jpg with thumbnails for images in multiple subdirs, one index jpg per subdir
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# REF: https://ostechnix.com/how-to-create-a-montage-from-images-in-linux/
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# CD to where you need to be b4 running
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# cd $HOME/Pictures $ $0
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# REQUIRES: imagemagick , findutils , parallel
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# del existing montage jpg first so we dont do Inception
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outfile=0montage.jpg
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set -u # abort on uninit var
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echo "Precleaning $outfile in this dir tree"
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find . -name "$outfile" -print -delete
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set +u
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if [ "$1" = "" ]; then
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echo "Single tasking"
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time find . -type d -print -exec montage -geometry 192x192\>+1+1 -set label '%f\n%wx%h' {}/\* {}/$outfile \;
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else
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echo "Using multi-cpu"
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time find . -type d -print \
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| parallel -I@ --max-args 1 \
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montage -geometry 192x192\>+1+1 -set label '%f\n%wx%h' @/\* @/$outfile
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# WARNING be aware that montage can use MULTIPLE GIGS OF RAM
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fi
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# ^ Find directories starting in this dir (and processing current directory
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# as well), print what it finds to somewhat track progress, run montage on
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# the files in that dir (you need to escape the star to avoid bash
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# autocomplete) with resulting output file named 0montage.jpg in the found dir.
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# PROTIP Prefacing the filename with 0 should sort it to the top in a file manager
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date
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exit;
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To open all the resulting index files (on OSX):
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for f in $(find . -name 0montage\*); do open $f; done
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# ^ Adapt to your Linux filemanager or you can use imagemagick ' display '
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Use "find * " to only process subdirs, not curdir
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REF: https://opensource.com/article/18/5/gnu-parallel
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$ find . -name "*jpeg" | parallel -I% --max-args 1 convert % %.png
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-I% creates a placeholder, called %, to stand in for whatever find hands over to Parallel.
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