Hi,
Previously in iChat the "Recent Pics" were stored and shown in the Drop down in the Buddy list.
The place was ~/Library/Images
In Mountain Lion it appears that the Drop Down shows "Recent Pics" but is pulling them from several sources.
The Messages Drop down
The Recent Picture Folder has these:-
Some Match and some don't.
~/Library/Caches/com.apple.AddressBook holds the Zebra and copies of my Sig and thre Union Flag.
At present I cannot find the ones the System Preferences > User and Groups > your account has as Pic are stored.
Some of the pics are the Apple Default ones. (Hardrive Name/Library/User Pictures)
You can also take a Snap Shot on Macs with cameras and I guess it is this that you are after ?
10:13 PM Thursday; November 22, 2012
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
iMac 2.5Ghz 5i 2011 (Mountain Lion 10.8.2)
G4/1GhzDual MDD (Leopard 10.5.8)
MacBookPro 2Gb (Snow Leopard 10.6.8)
Mac OS X (10.6.8),
Couple of iPhones and an iPad
"Limit the Logs to the Bits above Binary Images." No, Seriously