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May 27 2026 APP 2.0.0-beta45 has been released !

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Something not right - RGB Combine tool

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 Tony
(@tonymacc)
Neutron Star
Joined: 9 years ago
Posts: 110
Topic starter  

Am struggling to use the rgb combine tool, it should be simple right? there must be something I done wrong along the way but this is what I got after clicking the calculate button.

20180524 223339


   
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(@mabula-admin)
Universe Admin
Joined: 9 years ago
Posts: 5260
 

Dear Tony @tonymacc,

Think about it, if you only assing the 2 channels to G and B, then the Red channel in the composite is 0 everywhere. You will need to assing it to the red channel as well to be able to get a normal grey sky background.

So perhaps you should try this, start RGB combine tool and:

  1. assign Ha to green
  2. assign 03 to blue

just like you did, and then

3. mix the Ha data in the red channel as well, by applying Ha to red as well for 100%. That should give you an initial starting point with a grey sky background.

Let me know if this helps and clarifies the green/blue result that you showed.

Kind regards,

Mabula



   
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