Create 3D Photos Red Green Blue Channels

#!/bin/bash
######################################################################
#Copyright (C) 2020  Kris Occhipinti
#https://filmsbykris.com

#This program is free software: you can redistribute it and/or modify
#it under the terms of the GNU General Public License as published by
#the Free Software Foundation, either version 3 of the License, or
#(at your option) any later version.

#This program is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#GNU General Public License for more details.

#You should have received a copy of the GNU General Public License
#along with this program.  If not, see <http://www.gnu.org/licenses/>.
######################################################################

[[ "$#" -lt 2 ]] && echo "Usage: $0 <left img> <right img>" && exit 1

#get seperate color channels
echo "Generating Color Channel Images"
convert "$1" -channel BG -fx 0 /tmp/imageOut_L.jpg
convert "$2" -channel R -fx 0 /tmp/imageOut_R.jpg

#create file with layers
convert /tmp/imageOut_L.jpg /tmp/imageOut_R.jpg /tmp/output.tif

#open in gimp
echo "Opening GIMP"
gimp /tmp/output.tif

sleep 5
read -p "Press Enter to Delete temp files and continue"
rm /tmp/imageOut_L.jpg /tmp/imageOut_R.jpg /tmp/output.tif
echo "RED over LEFT EYE"