19 June 2021: Our upload server https://upload.astropixelprocessor.com/ has been migrated successfully to our new office with higher upload and download speeds (nearly 10MByte/sec up/down ) ! We now have 1 general upload user called: upload with password: upload. The users upload1 - upload5 have been disabled.
31 May 2021: APP 1.083-beta2 has been released ! APP 1.083 stable will follow soon afterwards. It includes a completely new Star Reducer Tool, New File Saver Module, Improved Comet registration and much more, check the release notes here!
Binning -- I'm sure I'm missing something obvious
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?
You can still register to the luminance channel, APP will automatically change the resolution to match.
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.
I think it automatically goes for the bin 1 as that is usually also the best quality, so it should upscale then.
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.
No worries, always here to assist when possible. 😉