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Light Pollution Procedure for LRGB Images

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 momo
(@mo-mo)
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Joined: 5 years ago
Posts: 127
Topic starter  

Hello everyone

I am currently working on the first LRGB image.
Light pollution processing was performed on each image of L, R, G, and B.
In the monochrome image, it appeared to be a gentle uniform.
After that, I combined the LRGB image, but the light and dark and color were uneven in the color image.

My question is that light pollution processing is performed on each image of L, R, G, B and should then be combined,  or should use light pollution process after combine.

Thank you

 

 



   
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(@Anonymous 174)
Joined: 9 years ago
Posts: 5702
 

Ah yes, so light pollution correction happens on each mono integration, but each mono integration will vary amongst each other regarding the background. So combining those will still create variation. It's best to just combine them first and then do the light pollution correction. It doesn't matter if you do it twice though, it doesn't hurt the data.



   
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 momo
(@mo-mo)
Neutron Star
Joined: 5 years ago
Posts: 127
Topic starter  

@vincent-mod

A Happy New Year!

And thank you for an answer!
I was taught that there was not an advantage to perform the same processing again.
I will do the light pollution correction in future after having unified LRGB.

Thank you



   
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(@Anonymous 174)
Joined: 9 years ago
Posts: 5702
 

Happy newyear as well! 😉 There is little to no advantage indeed, but it won't hurt it either. Best to just do it on the final image.



   
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