Batch image resample

batch_image_resample.sh

#!/bin/sh

# This script allows to resample images from whatever DPI to 75 DPI (screen resolution)
# in batch. I use it to prepare smallsize images of scans of my IDs, etc...

cd path/to/collections/base/dir
for fi in $(/bin/ls -1 image_collection_600dpi/*)
do
  fo="$(echo $fi | sed 's/_[[:digit:]]\+dpi//g')"
  echo convert-im6 $fi -units PixelsPerInch -resample 75 $fo
done

# Oneline
cd ~/org/id
for fi in $(/bin/ls -1 passeport_600dpi/*); do fo="$(echo $fi | sed 's/_[[:digit:]]\+dpi//g')"; echo convert-im6 $fi -units PixelsPerInch -resample 75 $fo; done