In a view we can display icons and image ressources.
However we cannot display a picture which is stored directly inside of the document.
It would be nice to have this option for displaying thumbnails of attachments, photos of users , ....
PS: And it should be easily possible, because it is already in the "Business Card"-view in the "Contacts" (Personal Addressbook) database. There you can see the photo of your contact. It is done through comuting a url which looks like this "docattach:notes:///C1257638002C9D96/DB71FB46F903224CC125764E005A6F20?OpenElement=ContactPhoto×tamp=13.10.2009%2018%3A53%3A34"