You can vibrate Kenaz + Ansuz 66 times in your 6th chakra. (Kenaz is a Torch in this case which highlights memory and makes it vivid)
Then 3x: vibrate Satanas, "I have a photographic memory", vibrate AUM in your 6th chakra
Close with : Hail Satan!
Use visualization exercises from this manual, as it's really related to "photographic memory".
those who need to improve visualization just replace affirmation with "I have perfect /vivid visualization"