From a generic point of view I'd assumed based on the appetite for imagery data there'd be a way to 'get' the recorded imagery and meta data into an image analyst workstation post mission and then do your post processing there then distribute it to reference libraries and where ever else from thence?
Great idea but no. There is no system on-board that records the meta, ephemeral or indeed any type of underlying data. The US are nuts when it comes to locking-down everything with crypto and anti-tamper systems - everything on F-35 sits in a walled garden. The only exception is for trials where a crate is carried in the righthand bay but everything remains locked down and the system does not work normally with the crate sucking point-to-point data from the fibre.
The US have worked very hard and spent lots of money to ensure no nation has the ability to do the stuff that we would really like to do with the jet. On the plus side, should one be left in an unfriendly state the capability is not compromised.