Move all files with low resolution to backup location

move-image-by-size.sh

function mvImgBySize
{
  minX=128
  miny=96
  xres=`identify -format "%[fx:w]" "$1"`
  yres=`identify -format "%[fx:h]" "$1"`
  if [ $xres -lt $minX ] || [ $yres -lt $minY ]
  then
    mv "$1" /path/to/backup/location/
  fi
}

export -f mvImgBySize

find /path/to/basedir/with/pictures/ -iname "*.png" -o -iname "*.jpg" -o -iname "*.jpeg" -o -iname "*.resOriginalRes" -o -name "*.HEIC" -exec bash -c 'mvImgBySize "$0"' "{}" \;