#Bortle 2 Rho Ophiuchi

1 messages · Page 1 of 1 (latest)

rough osprey
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Canon 6D (4.63um)
Rokinon 135mm (130mm)
13/04/2024 ddmm

following files:

  1. "combstack" OSC broadband data "combstack" in .xisf and .tif
  2. MSGR wide reference for those using Pix (the MSGR data has really strong gradients, trying to use MSGR will be a challenge)
  3. Canon RAW file for the meteor sub. Would recommend applying at the end of post-processing
rough osprey
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@brazen walrus here it is if u still need it

brazen walrus
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Thank

rough osprey
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👍

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show me the img when u done :)))

median sapphire
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walls

rough osprey
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balls

wide onyx
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My mom told me to be whatever u want when u grow up

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Now I’m an asimc224

granite flicker
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meteor?

rough osprey
granite flicker
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very interesting but also annoying at the same time

rough osprey
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i said at the top its in the canon raw sub

rough osprey
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thought it added some balance

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ill maybe try one without it too maybe

granite flicker
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i would prefer the image to be without the meteorite but thats just my opinion

rough osprey
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thanks for letting me know your thoughts

round dagger
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@rough osprey took a crack at the data. i'm not entirely sure of this process, so let me know what you think.
crazy data btw

rough osprey
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looks nice, you did a good job especially with the gradient

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reds look a bit pushed for me, and greens look as if they were killed a bit

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if its SCNR, id recommend going lighter, or only applying to a masked darker region

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signal and background is clean

round dagger
sudden nexus
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How does it look like ❓🙂

rough osprey
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uh you could probably work on a few things

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so your stars are very oversharpened, which when zooming in overwhelms the image

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also, it washes out any fainter details that could otherwise be seen, such as the emission-dust region which was visible at the very top of the frame

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colours have quite a warm tone, which is a bit hued compared to its true colour

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the background also seems to have a orange-to-black gradient from left to right, but that could have been my misinterpretation due to the immense starfield

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if we have a look at our processed cropped into one region

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you can see the stars, together with the hued background mute out a lot of faint detail which would otherwise look quite nice

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and the stars have a dark "ringing" around them

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anyways, those are all pointers to work on, and i wouldve done a much worse processing a year ago :)

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processing is difficult, and we all start somewhere, so i wish you luck!

median sapphire
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eyjafjallajokull

polar tendon
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Have never tried processing this target, looks like fun, having a crack at it. Thanks for sharing.

rough osprey
polar tendon
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So many stars

rough osprey
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and yes this data is extremely fun (except for the gradient GL with that)

rough osprey
polar tendon
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Lol even my starless is full of stars

median sapphire
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I wanna see how much better your data is compared to my 5h of data but in b5 stock dslr

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From just looking at your process I can see more detail and less noise and more signal

rough osprey
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looks good already

rough osprey
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how

median sapphire
rough osprey
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thats B5???

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holy cow

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surely combine them or something right?

median sapphire
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Got this data like almost a year ago

rough osprey
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bro that is crazy

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but a year ago B5 is probably better than now B5

median sapphire
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I noticed when I looked at your data it had the same problem as mine

rough osprey
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i can visually see adifference in my sky now

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its actually sad

median sapphire
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The bottom right of rho starless gets mega clipped idk why

rough osprey
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wait like the dark bit?

median sapphire
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This area

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Super clipped compared to the rest just like how my data was

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It’s a pain to fix

polar tendon
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All good tho

rough osprey
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looks pretty pushed idk

polar tendon
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Oh it is lol

rough osprey
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in my final proc i added a Lr mask to that corner 😭

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(it should not have gotten to that stage lmao)

rough osprey
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it was too packed with stars to DSNR the pre-starremoval

polar tendon
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Just putting the stars back now

rough osprey
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yeah should look better then

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i actually removed the first MLT layer because my star removal left artefacts

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so rip a bit of detail

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but whos peeping anyways

polar tendon
rough osprey
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nice

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a bit saturated for my liking

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but its not bad

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stars could be a bit softer too but thats just artistic lol

polar tendon
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quick go at it, im definitely gonna put some time into a better process

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beautiful data

polar tendon
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another quick go before i go to bed

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and the starless before the final tweaks

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well kinda starless lol

sudden nexus
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2nd try 🙂

polar tendon
rough osprey
polar tendon
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Windows pc

rough osprey
# sudden nexus 2nd try 🙂

looks way better than the first one, i would still work on the gradient correction and colour calibration, but the stars have a huge improvement, and the background is closer to neutral too

granite flicker
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i dont process nebulea so i dont really know if this is good or not

median sapphire
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Such wholesome data for realz

polar tendon
rough osprey
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WOAH

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hes crazy with it

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wait do u reckon u can help process my crux image

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i cant do it right for some reason

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and i know the data is good cuz i could see so much dust in the subs

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its 2h Bortle2

rough osprey
rough osprey
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alright bet ill upload it

granite flicker
granite flicker
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but when i try it it always gives me shit results

median sapphire
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Basically any spots where there is noticeable brightness change

granite flicker
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ah so like where the blue was on my image

median sapphire
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Avoiding placement on stars helps usually

granite flicker
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on the bottom

median sapphire
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You don’t want the dbe points to be sampling stars

granite flicker
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that i know

median sapphire
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Just gradients

granite flicker
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ok thanks for help

rough osprey
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@qqq what dbe do u use

median sapphire
rough osprey
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i currently use graxpert, but the regular RBF model, cuz grax's own model is shi

median sapphire
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Never liked graxpert

rough osprey
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pix has so many parameters its actually like balls

rough osprey
median sapphire
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Agreed

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If you want a good free dbe platform just use Siril, it’s basically the same as graxpert but in my opinion easier to use

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Use similar formulas

rough osprey
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results are same

median sapphire
dreamy crown
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ah nvm now i got it working

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i literally cannot get a better background then this

median sapphire
dreamy crown
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starnet moment monkaS

median sapphire
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Well the right corner thing is normal but the image before isn’t

dreamy crown
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starnet just makes it a black void if theres to many stars

median sapphire
dreamy crown
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idk i can crop it out

median sapphire
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Crop what

dreamy crown
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the huge black void on the right

round dagger
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for me, linear starnet doesn't do that, but stretched does

round dagger
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eh, or neh? i used scnr more sparingly and toned down the stretching a bit.

median sapphire
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Only issues are the dbe and the clipping of the dark dust lanes near the centre of rho

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Otherwise that I think it’s a nice process

rough osprey
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oooh such a nice process

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the only thing is that black clipped in the middle of rho @round dagger

dull gorge
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left some gradient on the bottom🦅

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I like this framing

rough osprey
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nice process

humble light
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i shall give this a go

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ok i cant get msgr working i give up

rough osprey
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yeah i take that back, was using the older release before due to compatibility issues, now im using the newest ai and its pretty impressive

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no?

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you shouldnt be applying DBE on stretched images anyways

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background extraction should always be a linear processing step

tame ruin
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@rough ospreyinteresting result from spcc lol

indigo mist
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I'd love to get some insight on how people get this so nice. Especially the colours and the darker structures toward the bottom. @rough osprey @round dagger @median sapphire @granite flicker

rough osprey
rough osprey
indigo mist
tame ruin
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It seems like the main issues occurred during your DBE and Color Calibration steps

indigo mist
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Maybe my background selected was too starry.

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However there's not much 'un-starry' space

tame ruin
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That article shows you how to prevent the green cast as well

tame ruin
# tame ruin

Both of these images have SPCC applied with the same settings, the only thing changed is the debayering

rough osprey
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lots of information in that article though, thanks for sharing

brazen walrus
rough osprey
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ohhhhh

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i see

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thanks so much ill use that in future

indigo mist
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for a quick process

tame ruin
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Depends on the specific data, however, it's more about how you use those processes rather than the workflow. Your DBE can be improved, the same goes for color calibration. Colors are very off in your version.

indigo mist
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Agreed. However i can’t really find background spots that don’t have stars lol

tame ruin
indigo mist
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so run colour calibration first, then deep snr, then starnet and then run DBE?

tame ruin
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Yeah that could be a good workflow

indigo mist
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Alright man thanks, i’ll give this a go when I get back from work

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Also, are there any pix processes to bring out the darker structures?

tame ruin
# indigo mist so run colour calibration first, then deep snr, then starnet and then run DBE?

Typically, you run StarNet first to remove the stars and THEN apply DBE on the starless image to ensure that the stars don't interfere with the creation of the background model during DBE. However, if the gradients are too noticeable in the original image, doing it this way can introduce gradients in the star mask itself.

To fix this, temporarily duplicate your original image and apply DBE to this duplicate first, then run StarNet to generate a more gradient-free star mask. Use this star mask on the original and delete the duplicate.

This method requires a bit more work, and it's not always necessary

tame ruin
indigo mist
tame ruin
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No, always apply StarNet on the linear image.

indigo mist
tame ruin
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No lol, running StarNet on a starless image wouldn't make sense

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You can just forget about it if you feel like it's too complicated. It's just an additional step

indigo mist
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sorry i misunderstood, I get it now

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Thanks so much for your time

tame ruin
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No worries, glad I could help

median sapphire
indigo mist
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right ima give this another go

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@tame ruin Do you know why i cant image solve?

indigo mist
tame ruin
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No idea, it worked fine for me. Try

92.4mm
4.63μm

@indigo mist

indigo mist
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this fine?

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yeah didnt work

tame ruin
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you typed ophuici

indigo mist
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same thing comes up

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my pix is broken

tame ruin
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With 92mm

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It's odd that it's not working for you

indigo mist
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indeed it is

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it dosent even load it just says failed right away

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ill restard the application

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ill reduce star detection

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oh it worked

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@tame ruin Just one more question, are there specifc settings to use in PCC for best results (im on an older version so no SPCC)

tame ruin
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Not sure, haven't used PCC, only in SiriL, back when I didn't have pix yet

indigo mist
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ah okay

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thanks man

tame ruin
# indigo mist oh it worked

For future issues like this, try using SiriL's PCC first. It's less strict on the settings than PixInsight's PCC. After that, try PCC again in PixInsight. SiriL will have saved the exact astrometric solution in the metadata, so you won't need to figure out the right settings anymore.

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If that makes sense

indigo mist
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yes thats good

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god deep snr gonna take ages lol

tame ruin
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Do you have a GPU?

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Just use GPU acceleration

tame ruin
indigo mist
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I have ryzen 7 5800x3d with a 3060 how can I get this?

tame ruin
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Not sure if it's going to be as fast as this since I have a 4080 rtx, but it will still significantly speed it up.

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I'll send you a link on how to configure it

indigo mist
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cheers

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at 80% about 5mins in lol

tame ruin
indigo mist
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yeah took 7 mins

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@tame ruin best dbe setings?

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i usually use this

tame ruin
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depends solely on the specific image, I usually experiment with the settings until I have the best result

indigo mist
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@tame ruin please can you combine my stars and starless

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pixel math is making the stars weird

tame ruin
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sure

indigo mist
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its just upladoing to wetrasnfer

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its so bad though i cant get it looking clean idk how people do it

tame ruin
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I use Jimmy's pixelmath expression

indigo mist
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like this, so clean and saturated well

indigo mist
tame ruin
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How did you create this starlayer?

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The stars already look clipped

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Idk what happened, but you might need to start over entirely tbh lol

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The starless version looks all messed up as well

indigo mist
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godammit

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i give up lol

tame ruin
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Try following this guide:

indigo mist
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I'm only good at galaxies

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idk why im struggling so much

tame ruin
rough osprey
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oh yeah the equipment is 6.5um, 130mm

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and make sure uu spell ophiuchi right

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i spelt it wrong in the title

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i'll change it rq

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Bortle 2 Rho Ophiuchi

gray jolt
granite flicker
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wait i remember this

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i have to retry processing it

granite flicker
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not the ckeanest process

summer wedge
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very quick edit

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just did a colour calibration, background extraction, star removal then a very intense curve stretch

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using ps+siril

hearty plank
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Loved it, its a siriL process btw

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not much collors but many details at my image

pliant wagon
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hey awesome data how should i edit the meteor and combiine it with the image?

acoustic bridge
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@rough osprey nice data

rough osprey
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nice processing!

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dust is very much popping out

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the background seems to have a little bit of colour imbalance, but its a pretty good effort given the complex region, i assume you just used an old background correction algorithm?