Downsample as first step, not last step.
-rw-r--r-- 40 .gitignore
drwxr-xr-x - doc
-rw-r--r-- 10184 gimp_passport.py
-rwxr-xr-x 2731 gimp_passport_plugin.py
-rw-r--r-- 4280 test_gimp_passport.py
-rw-r--r-- 2503527 test_image.jpg