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UPDATE FROM MABULA

I have had a very rough 2 months unfortunately health wise. I was struck 3x in a row with bacterial infections. The second infection occurred  after a routine hospital checkup and I became very sick. I had to rest and take a lot of antibiotics. Once I was recovering and restarting work 1 month ago, I again became sick. The infection was not yet gone, so even more antibiotics and rest was needed. Needless to say, it took a lot of my energy and I needed a lot of rest.

 

Finally, the infection is really gone and my energy is coming back step-by-step now and I have started work again. I am terribly sorry to have kept you waiting for support. I will address all outstanding questions and e-mails step-by step and will be on the forum daily from today.

 

APP 2.0.0-beta47 will come soon as well, a lot of work was already completed before I became very ill, so the release is also nearly ready for you. Beta47 will be much faster actually. Many workflows will be more than 2x faster, mosaics can even be 10x faster than before because registration really received a major boost... all compared to beta46.  Before I release it, I will make sure that everything is working properly and then I will release it.

[Sticky] Ha + OIII Dual Narrowband Workflow

41 Posts
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(@anofeles)
Main Sequence Star
Joined: 8 years ago
Posts: 33
 
Posted by: @mabula-admin

 

3) Kill background color noise, select ALL pixels from 0-background + 1*noise and check the selected pixels with the show color selection button :

Background noise Pixels

The weak H-alpha emmisions will not be harmed by this selection as can be seen in the mask :-). Those faint signals are visually above the noise level and that is represented by the background + 1*noise threshold. Simply set saturation to -100 which kills the color noise on the selected pixels.

I just learned how to remove background color noise. Thanks, but I have a little problem. Mabula explains that you have to move the saturation slider to -100. Is that only possible in beta 2.00? I can't install it because it doesn't run under MacOs Catalina (10.15.7) and in my version of APP (1.083.2), the saturation slider only goes from 0.00 to 0.50 and even if I move it to 0.00, I don't see any change in the background... Am I doing something wrong? Thanks in advance.



   
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(@mabula-admin)
Universe Admin
Joined: 9 years ago
Posts: 5379
 
Posted by: @anofeles
Posted by: @mabula-admin

 

3) Kill background color noise, select ALL pixels from 0-background + 1*noise and check the selected pixels with the show color selection button :

Background noise Pixels

The weak H-alpha emmisions will not be harmed by this selection as can be seen in the mask :-). Those faint signals are visually above the noise level and that is represented by the background + 1*noise threshold. Simply set saturation to -100 which kills the color noise on the selected pixels.

I just learned how to remove background color noise. Thanks, but I have a little problem. Mabula explains that you have to move the saturation slider to -100. Is that only possible in beta 2.00? I can't install it because it doesn't run under MacOs Catalina (10.15.7) and in my version of APP (1.083.2), the saturation slider only goes from 0.00 to 0.50 and even if I move it to 0.00, I don't see any change in the background... Am I doing something wrong? Thanks in advance.

Hi @anofeles,

It is the saturation slider in the HSL selective Color from the Tools menu. Not the saturation slider of the preview filter on the right side ;-).

Please read all the posts leading to that result and it will become clear 😉 It does work in the previous 1.083 version as well.

Mabula



   
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(@mike-lockwood)
White Dwarf
Joined: 5 years ago
Posts: 11
 

I learned a wealth of knowledge in this thread. Thank you @Mabula-admin for providing the utmost details in your Workflow.

That's as close to the source of "exactly how to do it" as you can get

I recently purchased your product and scratch my head on why I didn't do it sooner.....Game Changer

thank you sir



   
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(@mabula-admin)
Universe Admin
Joined: 9 years ago
Posts: 5379
 

Hi Mike @mike-lockwood,

You are most welcome, thank you for your feedback, that is highly appreciated !

Mabula



   
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(@mike-lockwood)
White Dwarf
Joined: 5 years ago
Posts: 11
 
Posted by: @mabula-admin

Hi Mike @mike-lockwood,

You are most welcome, thank you for your feedback, that is highly appreciated !

Mabula

Yes sir.... I look forward to APP 2.0.0 with a complete printable manual.

thank you again



   
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(@mkantor)
Hydrogen Atom
Joined: 5 years ago
Posts: 1
 

I'm also a "barely scratch the surface" APP user and just read this entire thread. I'm only doing EAA and mostly with an OSC and many times with a narrowband filter. Either an IDAS-NBZ or Antlia ALP-T highspeed.

The only workflow I've used so far is to load a single light which is a 16-bit FITS file live stack output from SharpCap. I'll then use the Tools to rotate, crop and light pollution/calibrate. Then I save a TIFF that I further process in Photoshop.

I would like to better understand how to implement an Ha-OIII workflow from a single narrowband light frame. I have a sample file for Sh 2-229 that might be useful in helping me better understand things.

 



   
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(@brazzo229)
White Dwarf
Joined: 5 years ago
Posts: 13
 

Hi Mabula,

the stars are relatively blue, is there a way to make them whiter or to reduce the saturation of the stars only?

The colours are otherwise great, but the very blue stars always bother me.

 

THX Sascha



   
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(@cschurch)
Main Sequence Star
Joined: 3 years ago
Posts: 17
 

First time poster and relatively new to APP.  I learned quite a bit from this thread and am working a narrowband image of the Rosette as well.

Thank you for this post!

Chris



   
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(@mabula-admin)
Universe Admin
Joined: 9 years ago
Posts: 5379
 

Hi Chris @cschurch,

Welcome to our forum ! Please share your results if you like in our gallery or let us know if you have any questions.

Mabula



   
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(@wvreeven)
Quasar
Joined: 8 years ago
Posts: 2134
 

@mabula-admin Please note that there is an issue with extracting Ha and OIII with the latest beta versions, as I posted here: https://www.astropixelprocessor.com/community/main-forum/extract-ha-and-oiii-doesnt-update-file-name-nor-filter-in-fits-header/



   
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(@mabula-admin)
Universe Admin
Joined: 9 years ago
Posts: 5379
 

@wvreeven, thanks, will work on this soon now 😉 we need some more additions and improvements clearly for these dual/triple/quad NB filter data !



   
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