Getting rid of colo...
 
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UPDATE FROM MABULA

I have had a very rough 2 months unfortunately health wise. I was struck 3x in a row with bacterial infections. The second infection occurred  after a routine hospital checkup and I became very sick. I had to rest and take a lot of antibiotics. Once I was recovering and restarting work 1 month ago, I again became sick. The infection was not yet gone, so even more antibiotics and rest was needed. Needless to say, it took a lot of my energy and I needed a lot of rest.

 

Finally, the infection is really gone and my energy is coming back step-by-step now and I have started work again. I am terribly sorry to have kept you waiting for support. I will address all outstanding questions and e-mails step-by step and will be on the forum daily from today.

 

APP 2.0.0-beta47 will come soon as well, a lot of work was already completed before I became very ill, so the release is also nearly ready for you. Beta47 will be much faster actually. Many workflows will be more than 2x faster, mosaics can even be 10x faster than before because registration really received a major boost... all compared to beta46.  Before I release it, I will make sure that everything is working properly and then I will release it.

Getting rid of colour gradients caused by camera Led lights

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(@nsousa)
White Dwarf
Joined: 4 years ago
Posts: 5
Topic starter  

Hi,

 

I just realised my flats are ruined because of my camera's red LED lights when using the Hyperstar. I used to have them covered with black tape, but had to remove the tape and forgot to put it back, ruining 3 nights of perfect conditions to photograph M101's supernova (rookie mistakes, which I'm prone to make a lot of).

 

So, when I stack I get these horrible colour gradients in my photos. A gree hue on the left hand side and a purple hue on the right hand side.

 

Can I get rid of them?

 

Here's an example: https://drive.google.com/file/d/1oW6anLUyrcN1z3asrk5p9yPmgCx7rFHI/view?usp=sharing



   
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(@mabula-admin)
Universe Admin
Joined: 9 years ago
Posts: 5379
 

Hi Nelson @nsousa,

I would think that it can be correct mostly with the Remove Light Pollution Tool, an explanation is here:

https://www.astropixelprocessor.com/part-4-light-pollution-correction-and-background-calibration-of-the-mosaic-tutorial-milky-way-to-rho-ophiuchi-by-mabula/

Mabula



   
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(@nsousa)
White Dwarf
Joined: 4 years ago
Posts: 5
Topic starter  

Thanks for the reply, I'll test the light polution tool. Where's the best place to put the squares? Only in areas with light I want to remove? Or a few also on areas without noticeable issues? I know about the "avoid nebulosity" rule.



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

The best way to do this is to place them a bit all over the place (and I'm talking about 5-10 squares to begin with) in areas without any nebulosity. Avoid placing them directly on the problem areas, first check what the tool does. Then slowly add squares towards the problem area, checking each time the result.



   
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