Eidetic

   
Eidetic (pronounced eye-det-ik) is an adjective meaning of, pertaining to, or constituting visual imagery vividly experienced and readily reproducible with great accuracy and in great detail. Relating to or denoting mental images having unusual vividness and detail, as if actually visible.

The word can also be used as a noun for a person who is able to to form or recall eidetic images.

I remember that at school we envied my friend George who could read pages of a history book and recall them almost word for word - even knowning where on the page any particular fact lay.

I'm not sure if it has an antonymn but it's the opposite of what my brother, GB, experiences - he has difficulty visualising things!