"When you work with large amounts of photos, it can get tiresome
to have to manually manage the file and directory structures. To
help resolve this, many people use photo managers such as Picasa,
DigiKam, and iPhoto. There are several options for Linux, so we've
decided to check out each of the major photo management options for
Linux to see exactly what each one offers. Today we'll be comparing
Picasa, F-Spot, Shotwell, DigiKam, and Geeqie.
"Google's answer to the problem of photo management is Picasa.
Some of the notable features include facial recognition, search
capability, automatic photo correction, and a reasonable amount of
image editing options. There's even a I'm Feeling Lucky button
which does a surprisingly good job of adjusting colors and lighting
to improve photos."