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2022-05-29: APP 2.0.0-beta2 has been released !

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[Solved] Creating a mosaic from two completed images


 Davm
(@davm)
Main Sequence Star Customer
Joined: 4 years ago
Posts: 38
Topic starter  

Hi all, I have two images completely processed in APP, the top and bottom sections of the Veil Nebula. Can I just load these two images in APP to make a mosaic?

regards Dave


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(@vincent-mod)
Quasar Admin
Joined: 5 years ago
Posts: 4830
 

In theory yes, depending on the amount of overlap they have. Recommended is at least something like 10%. You also need to set a few different settings.


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 Davm
(@davm)
Main Sequence Star Customer
Joined: 4 years ago
Posts: 38
Topic starter  

Thanks Vincent, I'll give it a try

Dave


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 Davm
(@davm)
Main Sequence Star Customer
Joined: 4 years ago
Posts: 38
Topic starter  

Would the the other alternative be to load all the lights from both sessions all at once?


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(@vincent-mod)
Quasar Admin
Joined: 5 years ago
Posts: 4830
 

Yes, depending on the amount of subs, if they go above 100 or so it might tax your system a bit much and then it becomes better to first prepare seperate panels like you did already. Make sure the overlap is good and set APP to advanced mode and mosaic mode. Turn LNC on as well.


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 Davm
(@davm)
Main Sequence Star Customer
Joined: 4 years ago
Posts: 38
Topic starter  

Many thanks for your speedy reply Vincent.

It would be over the 100, so I'll try with the separate panels.

Dave


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(@vincent-mod)
Quasar Admin
Joined: 5 years ago
Posts: 4830
 

Let me know if it works out. 🙂


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 Davm
(@davm)
Main Sequence Star Customer
Joined: 4 years ago
Posts: 38
Topic starter  

Hi Vincent,

The image was made over 4 sessions/evenings, 2 using the Optolong L-eNhance filter and 2 with just the IDAS LPS P2 filter. The lights from each session were processed separately, which resulted in 4 processed images, 2 RGB and 2 extracted Ha-OIII. 

I first loaded the two completed RGB panels, top and bottom, and let APP make the mosaic.

I then loaded the two completed Ha-OIII panels, which were extracted using APP, and let APP make a mosaic of these.

I then took the 2 finished mosaic's into photoshop and did an HaRGB combine.

Hope this helps others!

Dave

VeilNebula mosaic

 


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(@vincent-mod)
Quasar Admin
Joined: 5 years ago
Posts: 4830
 

Well that looks amazing! I still remember the days when making mosaics was daaaays of manual labour. 😉


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 Davm
(@davm)
Main Sequence Star Customer
Joined: 4 years ago
Posts: 38
Topic starter  

Thanks Vincent, it's amazing wat Mabula has put together in APP!.


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 Heno
(@heno)
Red Giant Customer
Joined: 5 years ago
Posts: 114
 

@davm

Great image, and thanks for that info. I have been wondering how to do that. 🙃 


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