Store a lot of Images in PersistentDict?

I have a large Image (dimension). I would like to split the image in a set of large number of partial areas. Its all done with PIL and no Problem. Can/Should i store the the "Pieces" as Annotation on the NamedBlobImage in a Persistent Dictionary? Does it make sense?
My Goal: I would like provide an url to use the image with the specific clipping area. I know the add-on, but i dont need the whole functionality. I would like split and cropping the image once. I don't need a solution, only ideas, opinions, experiences.
best regards, Jan

No, this makes no sense. Store any binary data using because the ZPublisher can efficiently handle their delivery to the browser rather than building something yourself.