"Star Shaping" Rejection Filter?

That might be possible I guess, a bit like what other apps do with a script of some sort. I guess something like this might be possible in the future when Mabula starts working on more post-processing options.

Hi Vincent,

Thanks for your reply.  It's definitely possible in post-processing.  It seemed to me it was possible in pre-processing and might be more effective there.

I agree it is a more "advanced" feature, but it could be a distinguishing one if it ended up working better before the stretch.  People spend a lot of effort trying to get nice round, tight stars and as a friend of mine said, "anything that puts the pixels back where they belong" is a big help 🙂 !

Cheers,

Rowland

Haha yes I agree, but at the same time it shouldn't affect the surrounding data too much, which is tricky I think. I do like deconvolution in PI for instance, some see that as "making up data", but it really isn't and when used on proper data it can be amazing. The rounding of stars usually degrades the data a bit it seems, in those cases I'm not a big fan of it and I just take-away I need better data. 🙂 I think it could definitely be an interesting option though.

You are right, better data is the best answer!  Deconvolution is mathematically-based and we know it is essentially undoing blurred data so I agree with you, I don't view it as "making up data."  

And yes, artifacts around stars definitely can result from shrinking the stars in later processing stages.  That's actually what led me to think about doing it early - we need some Mabula Magic (tm) :).  Some form of local normalization around the star?   

Ha! Mabula Magic, very good idea to put that in the feature list. 😉 Yes, he's the mathematics wizard so maybe there is a way (@mabula-admin ?).