After some search, I found Gpaste for my desktop.
But a feature is missing, the preview of copied images.
So I decided to write by myself a simple frontend (about 190 lines of code).
Here is the screenshot:

(The link: http://i64.tinypic.com/34zng9e.png)
Ok, the image is too big

I can empty the history, delete each item and of course choose any item.
What do you think?