I pushed an initial copy of Subaru's crosstalk code to this branch.

It makes way more sense to split this into three tickets. That way they can be worked on by more than just one person. Since Colin Slater already pushed crosstalk to this branch, I'm going to capture the crosstalk work here. DM-5462 will be the linearity work. DM-5924 will cover the overscan work. DM-5925 will handle porting the fringe correction code from obs_subaru to ip_isr.

Can we say that this work is likely to produce a description of the crosstalk correction algorithm and its dependencies (required calibration inputs and required predecessor steps) during this cycle that we could then share with the Camera group so they can evaluate the effort/feasibility of implementing it in the Camera DAQ system?

To what extent is this work a duplicate of DM-11268? I note that :

• It's not clear from the description above whether this is supposed to cover intra-CCD crosstalk, inter-CCD, or both;
• Simon Krughoff suggested to me OOB that this issue is "basically done" after Paul Price's work;
• DM-10299 seems to relate both to this and to DM-11268; Meredith Rawls may have opinions on what she actually needs to complete that ticket.
• It's unclear if the information Gregory Dubois-Felsmann requested has ever been provided to the Camera Team.

Thoughts? Simon Krughoff in particular — do you feel you have any work still to do here?

I think this can probably be called done. DECam crosstalk is funny and should be handled in obs_decam. The thing that's missing, as you point out, is inter-CCD crosstalk. We definitely need that, but we could have another ticket to specifically add that.

Ok. Let's close this as a duplicate of DM-11268. Gregory Dubois-Felsmann, I'm not sure how current your request for input to the Camera Team is — perhaps you could open another ticket (or just discuss with me directly) to make sure you have what you need.