Undo last stack

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roelb
Posts: 93
Joined: Wed Mar 08, 2017 11:36 pm

Undo last stack

Post by roelb » Fri Sep 21, 2018 11:30 pm

It would be interesting to have the possibility to undo the last stack.
Thanks.
Roel
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39N84W
Posts: 13
Joined: Sat May 19, 2018 4:02 pm

Re: Undo last stack

Post by 39N84W » Tue Mar 12, 2019 8:56 pm

Yes it would. Sometime a satellite or plane goes through the frame during live stacking. "Undo Stack" !

roelb
Posts: 93
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Re: Undo last stack

Post by roelb » Mon Aug 05, 2019 10:26 pm

I have not received a reply to this topic?
Roel
Celestron Nexstar Evolution 8 - Celestron Nexstar 6 SE - OTA 5 SE - StarSense
Starlight Xpress Lodestar X2 Mono -- ATIK Infinity Colour -- ZWO ASI290MM -- ZWO ASI224MC

JimsShed
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Joined: Sat Feb 24, 2018 7:25 am

Re: Undo last stack

Post by JimsShed » Sun Aug 11, 2019 1:42 am

As suggested, I'm assuming you'd want to do this to remove bad subs.
Also you don't say whether your use case is EAA or acquisition for later processing.
For the latter, you just need to tick the box to save every image and manually sort through the set during processing.

For EAA, yes it can be annoying to see your 20 minute accumulation scarred by a satellite etc.
The only workaround I can see at the moment is, as a contingency, to tick that box to save every image, then if it goes bad, stop auto-stacking, get into the file system and remove the bad subs, then re-stack the good subs using the File Monitor "camera". Unfortunately, I don't think you can then bring that newly stacked image back into a continuation of the live stacking process.
Jim

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admin
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Re: Undo last stack

Post by admin » Sun Aug 11, 2019 7:14 pm

The other option right now is to use the sigma clipped stacking option which will reject things like satellite trails after the first 10 frames or so because the bright pixels on the trail are statistically too different to the pixel values built up so far in that position .

I do like the idea of the undo option however, so it might make it for a future version.

Cheers, Robin

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