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INDI Library v2.0.6 is Released (02 Feb 2024)

Bi-monthly release with minor bug fixes and improvements

Call for SEP testing

In KStars 2.9.3, I worked on initial integration of SEP . You can think of SEP as a Sextractor Library. So the primary purpose of SEP in KStars is to aid with photometry work that I yet have to start in the future, but it has other purposes as well. In v2.9.3, you can select SEP as one of the detection algorithms in the focus module.

I'd like to get feedback on that. How reliable is SEP in detecting stars? is the red circle accurate?
The following user(s) said Thank You: nMAC, Radek Kaczorek, Eric, Teseo, Jose Corazon
6 years 6 days ago #24413

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I don’t have a motor focuser but this still sounds interesting. Could you explain a bit more about the other uses?
6 years 6 days ago #24421

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Replied by Jasem Mutlaq on topic Call for SEP testing

It will be used to do photometric measurements in KStars, i.e. aperture photometery..etc later on.
6 years 6 days ago #24422

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OK thanks for the wuick reply. In that case I won’t be able to help testing the module for now.
6 years 6 days ago #24424

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Replied by Greg on topic Call for SEP testing

Will give it a shot tonight if the wx holds.
6 years 6 days ago #24425

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Replied by Eric on topic Re:Call for SEP testing

My roll-away should be...rolling beginning of April, so for sure I'll be giving this a try. I hope it will properly recognize galaxy cores as what they are :)

-Eric
Last edit: 6 years 5 days ago by Eric.
6 years 5 days ago #24456

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Replied by Davy HUBERT on topic Call for SEP testing

Hey sounds great !
I'll give a try to this new module as soon as the weather is good.

Davy
6 years 5 days ago #24482

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I haven't check that part yet, but I should test it soon enough. I integrated yesterday to Guide module as well.
6 years 4 days ago #24496

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Replied by Jose Corazon on topic Call for SEP testing


Are you planning to expand this to the point where it can be used for detecting exoplanet transits?
That would be cool! Can't wait!

I'll check it out next time we have good weather here. According to the weather frogs, that's not going to happen for another week, though.
6 years 3 days ago #24510

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Replied by Jasem Mutlaq on topic Call for SEP testing

That's a long way off... I'm not sure if SEP is suitable for that.
6 years 3 days ago #24511

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Replied by Greg on topic Call for SEP testing

Finally, after spring break (kids), work travel, and terrible weather I got a clear night and a bit of time. I did some basic testing of SEP in the focus module that comprised of running the focus module both with the default of gradient detection and SEP. Gradient worked and selected a star. SEP did not. Instead it either found a hot pixel or a blank area and the focus module continued with attempting to focus. Obviously it failed.

Looking at the red circles in the focus module I see that SEP does find a couple of stars but also hot pixels.

Logs and a full-frame fits image, logs, and a couple of screen shots here:

www.dropbox.com/sh/btcc25a8gfl0xes/AAAbU...5ssa2dOYViq_Jca?dl=0
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Last edit: 5 years 11 months ago by Greg.
5 years 11 months ago #24643

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Replied by Jasem Mutlaq on topic Call for SEP testing

Right, I already found issues with SEP and fixed them in KStars GIT. I will use your frames to see if it still holds, thanks for providing the frames that's a tremendous help!!
5 years 11 months ago #24653

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