Apply isis command spice to cube created from jp2

Hello, David!
Thanks a lot for your reply.

What I want to do is to coregister pairs of HiRISE images and then feed this images to AI pipeline that will detect changes. For this the best data source is *_RED.JP2 files that have great resolution and are obviously RDR data.

My original problem I described here Batch coregistering of HiRISE images - #4 by mikita87
Suggested approaches required ISIS involvement and when I started digging into ISIS world in many places I saw the step of applying spiceinit to the cube.

Since I want to use many pairs of JP2 files my plan was to do with ISIS something like this

And again, here is is mentioned

“Autoseed requires the success of ISIS3’s spiceinit , footprintinit and findimageoverlaps applications”. So, spiceinit is a prerequisite.

As I inderstand, spiceinit should be applied to the cubes regardless of how they were produced (from EDR. or RDR), so I was wondering how to work with spice for RDR.