her photos in the Piwigo web GUI, so it really seemed necessary to fix the
images "in place" on the Piwigo server. The first problem with that is that
as you upload photos to the server, they are assigned unique filenames on
-disk based on the upload date and time plus a random has, and the original
+disk based on the upload date and time plus a random hash, and the original
filename becomes just an element of metadata in the Piwigo database. Piwigo
scans the Exif data at image import time and stuffs the database with a
number of useful values from there, including the image creation time that is