hall.sh

hall.sh

#!/bin/bash

W=`identify ./large.jpg | cut -f 3 -d " " | sed s/x.*//` #width
H=`identify ./large.jpg | cut -f 3 -d " " | sed s/.*x//` #height


if [[ $W > $H ]]; then
  NW=$H;
else
  NW=$W;
fi

convert large.jpg -crop ${NW}x${NW}+$((W-NW))+$((H-NW)) cube-right.jpg
convert cube-right.jpg -sparse-color voronoi '%w,0 white 0,%h black'  mask-right.png;
convert cube-right.jpg \( +clone -transpose \) mask-right.png  -compose Src -composite   mirror-right.png

convert large.jpg mirror-right.png -geometry +$((W-NW))+$((H-NW)) -composite right.jpg

convert large.jpg -crop ${NW}x${NW}+0+0 cube-left.jpg
convert cube-left.jpg -sparse-color voronoi '%w,0 white 0,%h black'  mask-left.png
# I know, there is a better way than 2 "flops"
convert cube-left.jpg -flop \( +clone -transpose \) mask-left.png -compose Src -composite -flop mirror-left.png 

convert large.jpg mirror-left.png -geometry +0+0 -composite left.jpg

convert large.jpg mirror-left.png -geometry +0+0 -composite mirror-right.png -geometry +$((W-NW))+$((H-NW)) -composite render.jpg

exit 0;