Page 2 of 2

Re: AP Processing Challenge No. 11 - The Helix Nebula

Posted: Wed Nov 11, 2020 4:10 am
by bobharmony
I took a crack at HOO to see what a more natural color scheme might be. Because I can't throw anything away, I used the nii as a luminance frame. Very similar process in StarTools as I used for the SHO version last week.
Helix HOO.jpg
Rob, did you drizzle this data in the calibration process. Or do you really have that large a sensor in use? Thanks for letting us get our hands on it!

Bob

Re: AP Processing Challenge No. 11 - The Helix Nebula

Posted: Thu Nov 12, 2020 6:33 am
by Graeme1858
Good one Bob. You have really brought out the nebulosity!

Regards

Graeme

Re: AP Processing Challenge No. 11 - The Helix Nebula

Posted: Sat Nov 14, 2020 5:32 am
by yobbo89
my retailer has helped me on removing the leaked transmissions for the nii and ha filters via pixel maths, pm and i can give you the equation , if it works i might write a short tutorial .

Re: AP Processing Challenge No. 11 - The Helix Nebula

Posted: Sat Nov 14, 2020 10:14 pm
by carastro
I've never used Nii, I gave it a try but could not come up with anything I liked, so I did HOO.

Image

Re: AP Processing Challenge No. 11 - The Helix Nebula

Posted: Sun Nov 15, 2020 6:57 am
by Graeme1858
That's a nice variant Carole. You have some fine detail in the iris.

So you won't be wanting an Nii filter for Christmas then? :)

Regards

Graeme

Re: AP Processing Challenge No. 11 - The Helix Nebula

Posted: Sun Nov 15, 2020 4:00 pm
by Graeme1858
I posted a link to this challenge on Eileens Lounge. Here's one of Ken's goes at it using Ha -->Red | Nii -->Green | Oiii -->Blue and then applying a Technicolor effect with Affinity Photo, which involves inverting the colours in each channel R-->G, G-->M, B -->Y.

Capture.PNG

I like it!

Regards

Graeme

Re: AP Processing Challenge No. 11 - The Helix Nebula

Posted: Sun Nov 15, 2020 4:06 pm
by carastro
Thanks Graeme.
So you won't be wanting an Nii filter for Christmas then? :)
I have hardly seen anyone use one and when they do it seems a very odd coloured result as did this when i tried to process it. So no, it is not on my Christmas present list.
You have some fine detail in the iris.
Yes I did concentrate on that area to get some nice detail.

Carole