Splitting OSC chann...
 
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2022-05-29: APP 2.0.0-beta2 has been released !

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windows 2.0.0-beta2

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Splitting OSC channels

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(@regpratt)
Main Sequence Star Customer
Joined: 2 years ago
Posts: 44
Topic starter  

Hello, I'm new to APP and am trying to split OSC data into RGB channels. How do I go about doing this?


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(@vincent-mod)
Quasar Admin
Joined: 5 years ago
Posts: 4856
 

There is a split channels option in tab 2, all the way down in the options list. Then press “save calibrated frames”.


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(@regpratt)
Main Sequence Star Customer
Joined: 2 years ago
Posts: 44
Topic starter  

Second question on a similar note. I'm trying to see if it is possible to combine OSC data with true mono data. I thought I could extract Ha and Oiii but those processes result in stacked ha and oiii files. Is it possible to exract Ha and Oiii into un-stacked subs so I can stack them with mono subs?


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(@vincent-mod)
Quasar Admin
Joined: 5 years ago
Posts: 4856
 

Yes, when you select to “extract Ha” and then load the data, it should automatically produce light frames that are Ha only. So no need to do anything else and those are the unstacked frames.


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(@regpratt)
Main Sequence Star Customer
Joined: 2 years ago
Posts: 44
Topic starter  

@vincent-mod Interesting, I must be doing something wrong because when I select extract Ha then load subs nothing happens until I integrate at which time I am given a stacked HA tiff file.

 


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(@vincent-mod)
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Joined: 5 years ago
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Mmm, ok let me check that to be sure I didn't give you wrong advice here. 😉


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(@regpratt)
Main Sequence Star Customer
Joined: 2 years ago
Posts: 44
Topic starter  

@vincent-mod Much appreciated!


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(@vincent-mod)
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Joined: 5 years ago
Posts: 4856
 

Yes, so I checked to be 100% sure. When I select the "extract Ha" in the demosaic algorith and then load in the lights, I immediately get the Ha mono data loaded. This is not the case for you then? Check the histogram on the top right, it should show a mono histogram.


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(@regpratt)
Main Sequence Star Customer
Joined: 2 years ago
Posts: 44
Topic starter  

@vincent-mod I already had the lights loaded when I selected extract Ha. Am I to understand that it matters that you select extrac Ha BEFORE loading the lights? I will try it right now.


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(@vincent-mod)
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Yes definitely, when you load them, tab 0 is executed basically. So if you loaded them and then change it, it doesn't work.


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(@regpratt)
Main Sequence Star Customer
Joined: 2 years ago
Posts: 44
Topic starter  

@vincent-mod I tried it and it worked. Thank you! And I can see that if i also want to extract oiii I have to remove the lights from APP, change tab 0, and reload them with the master calibration frames.


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(@vincent-mod)
Quasar Admin
Joined: 5 years ago
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Excellent, hope you can process that data further and please share the results. 🙂


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 Davm
(@davm)
Main Sequence Star Customer
Joined: 4 years ago
Posts: 38
 
Posted by: @regpratt

And I can see that if i also want to extract oiii I have to remove the lights from APP, change tab 0, and reload them with the master calibration frames.

Have I been doing it wrong all this time...I extract Ha and then jump to tab 0 and change the algorithm to extract OIII without reloading!! 😯 

Dave


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(@astrobackyardutah)
Hydrogen Atom Customer
Joined: 2 years ago
Posts: 3
 

So I tried this and then tried to combine my mono and HA extracted OSC data and got these error message.

E148715A C4EA 415A A8AA FBAAD1CC7262
B38B5746 B9C6 4B1A BC1E 02A33D47DC8A

Not sure where to go.


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(@regpratt)
Main Sequence Star Customer
Joined: 2 years ago
Posts: 44
Topic starter  

Whats the difference between extracting ha/oii and just splitting RGB channels?


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(@vincent-mod)
Quasar Admin
Joined: 5 years ago
Posts: 4856
 
Posted by: @regpratt

Whats the difference between extracting ha/oii and just splitting RGB channels?

APP does some more clever (I have no idea exactly what internally) processing when extracting the Ha signal. It gives a cleaner result, keeps the sensor resolution intact, etc. So you’re getting a better image back basically.


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(@vincent-mod)
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Joined: 5 years ago
Posts: 4856
 

@astrobackyardutah

I’m afraid I can’t read what’s on the screenshot. You do have to be careful you’re not combining RGB and mono and try to normalize that, that doesn’t work as it’s 3-channel broadband data versus 1-channel mono. So the split R, G and B is required first and then you can process those together with the mono data.


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(@astrobackyardutah)
Hydrogen Atom Customer
Joined: 2 years ago
Posts: 3
 

@vincent-mod Thank you for the advice. I am new to APP, so can you give me a details work flow to extract my HA and OIII data from my OSC camera & filter and then combine it with my mono HA and OIII pictures please?


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(@vincent-mod)
Quasar Admin
Joined: 5 years ago
Posts: 4856

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(@astrobackyardutah)
Hydrogen Atom Customer
Joined: 2 years ago
Posts: 3
 

@vincent-mod Thank you for this! Do you have one that would help with combining the LEnhance with Mono Narrowband data?


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