RGB stacks clipping blackpoint

Image processing, astrometry, photometry, etc.
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woldsstargazer
Posts: 2
Joined: 25 Aug 2022, 20:19

RGB stacks clipping blackpoint

Post by woldsstargazer » 25 Aug 2022, 20:23

My RGB stacks in Astroart have started to clip the blackpoint prior to any processing.
Luminance stacks are fine. Trying to understand what the issue is. Any suggestions welcome.

fabdev
Posts: 461
Joined: 03 Dec 2018, 21:43

Re: RGB stacks clipping blackpoint

Post by fabdev » 26 Aug 2022, 21:07

Hello, verify if the dark frames are the correct ones (duration, temperature) of each R,G,B sequence.
As a test, try disabling the option "Remove negative pixels" in Preprocessing.

woldsstargazer
Posts: 2
Joined: 25 Aug 2022, 20:19

Re: RGB stacks clipping blackpoint

Post by woldsstargazer » 28 Aug 2022, 18:01

Thanks for the negative pixels tip. Will try that. Darks all matched ok.

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