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Flip not recorded in log

Posted: Sat Dec 03, 2022 8:20 pm
by LuckyEddie
As per subject title, it appears that the flip action is not recorded in StarTools.log
Therefore if this is used early on in the workflow then subsequent actions that use either a ROI or mask can not be correctly rerun by ST Replay.
I often use flip as ST seems to read the .fits produced by Siril upside down - I don't know if that's a Siril or ST issue.

Re: Flip not recorded in log

Posted: Mon Dec 05, 2022 2:43 am
by admin
LuckyEddie wrote: Sat Dec 03, 2022 8:20 pm As per subject title, it appears that the flip action is not recorded in StarTools.log
Therefore if this is used early on in the workflow then subsequent actions that use either a ROI or mask can not be correctly rerun by ST Replay.
Thank you for reporting this. I will add this for 1.9.
I often use flip as ST seems to read the .fits produced by Siril upside down - I don't know if that's a Siril or ST issue.
Siril is technically doing it right (the FITS specification specifies the data is stored flipped), though a number of applications (e.g. Deep Sky Stacker) don't store FITS files like this and store data like any other image format. As a post-processing app trying to import the resulting data, you're sort of "damned if you do, damned if you don't". And this is even less of clear-cut issue, given the differences in optical trains that may mirror/flip the image anyway.

Re: Flip not recorded in log

Posted: Mon Dec 05, 2022 9:02 am
by LuckyEddie
Thanks Ivo