Binning -- I'm sure...
 
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Binning -- I'm sure I'm missing something obvious  

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(@rickwayne)
Main Sequence Star Customer
Joined: 2 years ago
Posts: 38
June 7, 2021 00:59  

So I heavily weighted my last two sessions to luminance, and it occurs to me that if I bin the R, G, and B, I'll get rid of some chrominance noise without losing any detail. But for the life of me, I can't figure out how to do that in APP. I see this helpful thread, but that looks as if it would actually reduce the image size so that it no longer registers with the L channel -- I want to leave the L channel alone. Do I have that correct? Or is there another way to accomplish this?


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(@vincent-mod)
Universe Admin
Joined: 4 years ago
Posts: 3550
June 7, 2021 11:54  

You can still register to the luminance channel, APP will automatically change the resolution to match.


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(@rickwayne)
Main Sequence Star Customer
Joined: 2 years ago
Posts: 38
June 7, 2021 23:13  

Ah, OK, thanks Vincent! But will APP upscale the "binned" (downscaled with interpolation) RGB data, or downscale the luminance to match? What I want is a full-scale luminance image with the lower-resolution RGB informing each pixel's color.


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(@vincent-mod)
Universe Admin
Joined: 4 years ago
Posts: 3550
June 8, 2021 09:02  

I think it automatically goes for the bin 1 as that is usually also the best quality, so it should upscale then.


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(@rickwayne)
Main Sequence Star Customer
Joined: 2 years ago
Posts: 38
June 8, 2021 17:30  

COOL! Well, I will definitely have to try that. For the particular image I was working on, the question is mostly moot -- I just went out and doubled my integration time :-). But I'll certainly want to have that technique in my toolbox. BTW I got all bound up in this Markarian's Chain image and left the Leo's Triplet one by the wayside (the one whose color balance we were discussing in another thread). I'll get back on that and resume that chain. Thanks again for your help with that, and this.


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(@vincent-mod)
Universe Admin
Joined: 4 years ago
Posts: 3550
June 9, 2021 05:31  

No worries, always here to assist when possible. 😉


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