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2023-01-19: APP 2.0.0-beta13 has been released !

!!! Big performance increase due to optimizations in integration !!!

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Combine DSLR with H Alpa in Mozaik


(@hans_van_overzee)
Main Sequence Star Customer
Joined: 6 years ago
Posts: 39
Topic starter  

Hi,

Is there a method to combine integrated H alpa with integrated DSLR color pictures with the mozaik function.

This method I use with no probem for different integrated DSLR color pictures with the mozaik function.

When I include H alpha I get with the normalisation a Java error.

I use the gray H alpha integraton picture, or should I use the red integrated picture?.

Thanks

Regards,

 

Hans 

This topic was modified 3 years ago by Hans van Overzee

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(@vincent-mod)
Universe Admin
Joined: 6 years ago
Posts: 5229
 

Yes, the issue is that you can’t normalize 3-channel RGB data with 1-channel Ha. So what you can do is make the mosaic in RGB and in Ha separately. Then, you split the RGB channels and save those. You can then load in the R, G , B and Ha as single channel data. Register and normalize those together and save the normalized frames. These can then be loaded into the RGBCombine tool.

This will become easier in a future version.

 


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(@hans_van_overzee)
Main Sequence Star Customer
Joined: 6 years ago
Posts: 39
Topic starter  

Thanks, I understand. But how do you split a combined RGB DSLR image in seperate Channels?


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 Davm
(@davm)
Main Sequence Star Customer
Joined: 5 years ago
Posts: 38
 

Hello Hans, load RGB image, tab 2 Calibrate. At the bottom, Split Channels.

Hope this helps

Regards Dave


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(@hans_van_overzee)
Main Sequence Star Customer
Joined: 6 years ago
Posts: 39
Topic starter  

Sorry I don't think this is going to work


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(@wvreeven)
Galaxy Customer
Joined: 4 years ago
Posts: 2090
 

Hans, perhaps you may explain why you think it is not going to work. With only that statement it will be very hard to help you further.

 

Wouter


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(@hans_van_overzee)
Main Sequence Star Customer
Joined: 6 years ago
Posts: 39
Topic starter  

Thanks for your comment! As far as I know with mozaiks you don't need to calibrate.

I also could not find anything about this.

May be there is an other possibility for seperate the channels.

Actually what I am looking for is a work flow for achieving this


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(@wvreeven)
Galaxy Customer
Joined: 4 years ago
Posts: 2090
 

Have you tried what @Davm suggested? Because that is the workflow for separating the channels in APP. The fact that the functionality is on the Calibrate tab doesn't mean that the images get calibrated. This only happens when you add calibration frames like flats and darks.


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(@hans_van_overzee)
Main Sequence Star Customer
Joined: 6 years ago
Posts: 39
Topic starter  

Thanks both for your comments it has been very helpfull.

I have tried it and it worked so far. For the three pictures the channels are seperated the 4th picture is in Ha. When integration I get a grey mozaik. I understand that I have to use the RGB tool to bring back the colors in the mozaik. At the moment I don't no how. Tips are welcome.

I will also watch the tutorial about HaRGB.

Hans 


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(@wvreeven)
Galaxy Customer
Joined: 4 years ago
Posts: 2090
 

That is great progress. In tab 9 choose “combine RGB” and select “HaGB 1” or “HaRGB 2” as formula. Then load the Ha, R, G and B images and press “(re-)calculate”. Note that, when you switch formula after you have loaded the images, you need to press the “new formula” button before pressing “(re-)calculate” again.

 

Succes! Wouter


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(@hans_van_overzee)
Main Sequence Star Customer
Joined: 6 years ago
Posts: 39
Topic starter  

Thanks also to Vincent! Your workflow worked perfectly. A strange thing I found is that after combining RGB I did not need to integrate. But that is no problem. The most imported thing is that it works.

COMB RGB H alpha RES 1

 

 

This post was modified 3 years ago by Hans van Overzee

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