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(@mabula-admin)
Quasar Admin
Joined: 2 years ago
Posts: 2081
June 28, 2017 10:30  
Posted by: ian

hi mabula managed to get my 3 seperate  stacks of RGB,but when i put them into the combine rgb tool i get the following red image ,any thoughts and once again thanks

rgb stack

 

link to  rgb stacks 

https://www.dropbox.com/s/hmtdy029awbq6ru/St-avg-900.0s-NR-x_1.0_LZ3-NS-full-eq-add-sc_BWMV_nor-AA-RL-noMBB-1-reg.fits?dl=0

https://www.dropbox.com/s/6f1mwp43snct85l/St-avg-900.0s-NR-x_1.0_LZ3-NS-full-eq-add-sc_BWMV_nor-AA-RL-noMBB-2-reg.fits?dl=0

https://www.dropbox.com/s/24cjfspet1kq87k/St-avg-900.0s-NR-x_1.0_LZ3-NS-full-eq-add-sc_BWMV_nor-AA-RL-noMBB-3-reg.fits?dl=0

if it helps cheers

 

Hi Ian,

I have downloaded your R,G,B channels. When you start the RGB combine tool, you load the images and assign them to a name, so assing the Red data to "RED" for instance.

Then when the frames are loaded. You will need to adjust the sliders of the RGB combine tool:

app IAN RGB

The tool starts with all sliders at 0.

So for the "RED" data, assing it for 100% to Red to start with 😉

More explanation can be found in this video:

https://www.astropixelprocessor.com/lhargb-the-whirlpool-galaxy-pre-post-processing/

In the video I explain more on how to use the RGB combine tool, from minute 20 to 30 roughly.

Let me know if this helps 😉

Mabula

Main developer of Astro Pixel Processor and owner of Aries Productions


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(@mabula-admin)
Quasar Admin
Joined: 2 years ago
Posts: 2081
June 28, 2017 10:41  
Posted by: Michel

That last one is a great tutorial. I just have one question, where can a newbie like me find, WHY you make certain choices in the integration panel like median or average integration, which LNC level to pick etc....

thanks again for a great tutorial!

Thank you Michel,

Check this topic for median/average and which outlier rejection:

https://www.astropixelprocessor.com/community/faq/when-to-use-which-outlier-rejection-filter/#post-533

Regarding LNC and MBB, I still need to create a FAQ for this as well 😉

But simply said:

MBB, just enable it with 5-10%, using it will slow down the integration speed, because more data needs to be handled. But, I always enable MBB to reduce any stack artefacts.

LNC, you get the most profit from this if you combine data from different nights and/or different setups. But even on data shot with the same OTA + camera on the same night, LNC will give you an improvement of the stack over the entire field of view. Simply start with LNC 1st degree and 1 iteration and compare this to an integration without LNC. It will give you an impression on what changes in the stack due to the use of LNC.

Both LNC and MBB are new concepts in the Deep Sky image processing sphere, so I will certainly make an extensive FAQ for this with more explanation 😉

Mabula

 

Main developer of Astro Pixel Processor and owner of Aries Productions


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 ian
(@iwols)
White Dwarf Customer
Joined: 2 years ago
Posts: 12
June 28, 2017 12:38  
Posted by: Mabula Haverkamp
Posted by: ian

hi mabula managed to get my 3 seperate  stacks of RGB,but when i put them into the combine rgb tool i get the following red image ,any thoughts and once again thanks

rgb stack

 

link to  rgb stacks 

https://www.dropbox.com/s/hmtdy029awbq6ru/St-avg-900.0s-NR-x_1.0_LZ3-NS-full-eq-add-sc_BWMV_nor-AA-RL-noMBB-1-reg.fits?dl=0

https://www.dropbox.com/s/6f1mwp43snct85l/St-avg-900.0s-NR-x_1.0_LZ3-NS-full-eq-add-sc_BWMV_nor-AA-RL-noMBB-2-reg.fits?dl=0

https://www.dropbox.com/s/24cjfspet1kq87k/St-avg-900.0s-NR-x_1.0_LZ3-NS-full-eq-add-sc_BWMV_nor-AA-RL-noMBB-3-reg.fits?dl=0

if it helps cheers

 

Hi Ian,

I have downloaded your R,G,B channels. When you start the RGB combine tool, you load the images and assign them to a name, so assing the Red data to "RED" for instance.

Then when the frames are loaded. You will need to adjust the sliders of the RGB combine tool:

app IAN RGB

The tool starts with all sliders at 0.

So for the "RED" data, assing it for 100% to Red to start with 😉

More explanation can be found in this video:

https://www.astropixelprocessor.com/lhargb-the-whirlpool-galaxy-pre-post-processing/

In the video I explain more on how to use the RGB combine tool, from minute 20 to 30 roughly.

Let me know if this helps 😉

Mabula

thanks for that mabula great explanation ,cheers


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 ian
(@iwols)
White Dwarf Customer
Joined: 2 years ago
Posts: 12
June 30, 2017 01:27  

thanks for the great program/explanations how could i make the background blacker and smoother cheers

combine RGB image St


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(@mabula-admin)
Quasar Admin
Joined: 2 years ago
Posts: 2081
June 30, 2017 09:59  

Nice image Ian, looks very good already 😉 !

The first thing I would do now, is to use the "remove light pollution" tool and "calibrate background" tool. This will help you in getting the background flat by removing the gradients that are still there. A clear gradient runs from the top right corner to the bottom left. Applying backgroun calirbation will ensure that you have a neutral background.

Check this video for more explanation:

https://www.astropixelprocessor.com/post-processing-background-and-star-color-correction/

cheers,

Mabula

 

Main developer of Astro Pixel Processor and owner of Aries Productions


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(@sloz1664)
Hydrogen Atom Customer
Joined: 2 years ago
Posts: 2
July 4, 2017 22:27  

I'm struggling to pre-process fit files from my QHY8 Pro colour ccd. More importantly the de-bayering  process. I always end up with grey images - not de-bayered. I have tried the various pattern variants to no avail. Any help welcomed.

Steve


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(@mabula-admin)
Quasar Admin
Joined: 2 years ago
Posts: 2081
July 4, 2017 22:44  
Posted by: sloz1664

I'm struggling to pre-process fit files from my QHY8 Pro colour ccd. More importantly the de-bayering  process. I always end up with grey images - not de-bayered. I have tried the various pattern variants to no avail. Any help welcomed.

Steve

Hi Steve,

Have you tried the force CFA selectbox?

app forceCFA

This should force the debayering off your files.

Let me know if this helps.

Kind regards,

Mabula

Main developer of Astro Pixel Processor and owner of Aries Productions


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(@sloz1664)
Hydrogen Atom Customer
Joined: 2 years ago
Posts: 2
July 5, 2017 01:32  

Thank you Mabula that works fine 🙂

Steve

 


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(@mabula-admin)
Quasar Admin
Joined: 2 years ago
Posts: 2081
July 5, 2017 11:01  

Excellent Steve 😉

Main developer of Astro Pixel Processor and owner of Aries Productions


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(@scott_rosen)
Red Giant Customer
Joined: 2 years ago
Posts: 59
July 30, 2017 20:46  

Hi Mabula -

A month or so ago, you had posted a version 0.4 of the manual (Quick Reference Guide).  I've searched throughout the entire forum; and, for the life of me, I can't find it.  Could you please post a link to this version of the guide?  I know it wasn't complete, but it definitely had some very useful information.

Also, a suggestion - even though it's not complete, I think it would be very helpful to have an obvious link on your site to this documention.  Perhaps something like changing the Video Tutorials link at the top (between Presentations and About) to "Tutorials/Manuals" would make it very easy for users to find this helpful information?

Thanks,

Scott


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(@mabula-admin)
Quasar Admin
Joined: 2 years ago
Posts: 2081
July 31, 2017 14:34  
Posted by: Scott Rosen

Hi Mabula -

A month or so ago, you had posted a version 0.4 of the manual (Quick Reference Guide).  I've searched throughout the entire forum; and, for the life of me, I can't find it.  Could you please post a link to this version of the guide?  I know it wasn't complete, but it definitely had some very useful information.

Also, a suggestion - even though it's not complete, I think it would be very helpful to have an obvious link on your site to this documention.  Perhaps something like changing the Video Tutorials link at the top (between Presentations and About) to "Tutorials/Manuals" would make it very easy for users to find this helpful information?

Thanks,

Scott

Hi Scott,

Currently, you can find the Quick Reference Manual between your downloads, where you can also download the latest APP version. Let me know if you can find it now 😉

I am working hard on completing the documentation (and French translation as well by André Cajolais).

Yes, I'll remove the documentation from the download section soon, and will make it available through a clear menu on the main web site. So everyone will be able to download/read/study the documentation.

Thank you for your thoughts again 😉

Cheers,

Mabula

 

Main developer of Astro Pixel Processor and owner of Aries Productions


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(@scott_rosen)
Red Giant Customer
Joined: 2 years ago
Posts: 59
August 1, 2017 00:55  

Thank you, Mabula - yes, I do see it now.  I had looked there the other day, but I guess I was too busy looking at the description in the left column and never looked in the right column!

I had wanted to post a link on the DSLR-Astro Image Processing group forum, as Chuck was asking about directions on getting started.  Is there a URL that someone could use right now, or are you preferring to wait until it's complete?

Thank you,

Scott  -  http://www.astronomersdoitinthedark.com/

 


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(@mabula-admin)
Quasar Admin
Joined: 2 years ago
Posts: 2081
August 1, 2017 12:26  

Hi Scott,

I'll wait with posting it on the site for everyone to see and download until it's at least properly filled with no blanks. But you're welcome to share the pdf as you wish.

Kind regards,

Mabula

 

Main developer of Astro Pixel Processor and owner of Aries Productions


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