Write occlude.sh to help with card creation
John Smith commited on 2022-295 17:09:45
Showing 1 changed files, with 23 additions and 0 deletions.
occlude.sh, given an image, generates a set of images with rectangular regions occluded, which assists the user to create image-memorisation cards.
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+#!/bin/sh |
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+# occlude - generate a set of images with rectangular sections occluded |
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+# usage: occlude img |
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+# Displays img in iv and generates a numbered occluded image |
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+# for every two middle-clicks (which select a position in the image). |
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+ |
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+IFS=', ' |
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+BFN="${1%.*}"
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+FE="${1##*.}"
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+CTR=1 |
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+'/usr/local/bin/iv' "$1" | while read X Y |
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+do |
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+ if [ -n "$SX" ] |
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+ then |
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+ magick "$1" -fill black -draw "rectangle ${SX},${SY} ${X},${Y}" "${BFN}_${CTR}.${FE}"
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+ SX='' |
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+ SY='' |
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+ CTR="$((CTR+1))" |
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+ else |
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+ SX="$X" |
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+ SY="$Y" |
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+ fi |
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+done |
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