Eidetic

[Couch Potatoe]

Relating to or denoting mental images having unusual vividness and detail, as if actually visible.

[Raeanne Dimick]

Basically, [the condition] of having a [photographic memory]. Can also be used to describe any kind of advanced [memory] skill/abilty/condition (depending on the circumstances of attaining a photographic memory).

[Justin Bieber]

[Eidetic] means to have an extraordinary memory, like taking a snapshot of a long piece of text and being able to recite [it word] for word. Different to [photographic memory], where its more people just saying they can do it when they cant. Eidetic is the science; photographic is the myth.
People also tend to assume that being [eidetic] means you cheat in tests. If you are an Eidetiker (eidetic person) all I can say is get used to it. You know that game where there are ten objects on a tray, and it gets covered up after 30sec and you have to remember what was on there? We used to play that game in my family at Xmas but I was banned from playing it when I was 6 because my memory was better than anyone elses in the room, which made it unfair (apparently).