I don't think. Photographic memory, I perceive, visualize everything, no matter if I want to or not. I never delevoped much of a control over not perceiving. I'd hate to limit my perception.
"Beware the Jabberwock, my son!
The jaws that bite, the claws that catch!
Beware the Jubjub bird, and shun
The frumious Bandersnatch!"