Where are the 'Recents' user pictures saved?

Question

I have set a user picture for my user account.

I can see it when selecting the user picture in the system preferences Users & Groups and in the tab recents.

Where are the user picture saved on my mac on mavericks?

Answer 1

I found it at

/Users/grafvonmalotky/Library/Containers/com.apple.ImageKit.RecentPictureService/Data/Library/Images/Recent Pictures

There are the original and the cropped version of every image, very cool.

The default ones are at

~/Library/User Pictures