Any tips for combin...
 
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Any tips for combining an Ha and a color panel?

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(@mcbbcn)
Red Giant
Joined: 6 years ago
Posts: 43
Topic starter  

Hi,

I watched the mosaic videos but I don’t think what I’m trying to do matches that.

I have an Ha integrated panel of the butterfly nebula which I took with my mono ccd, and I have a color integrated panel of the same nebula which I took with a color ccd.

What are the steps for overlapping these 2 images and bringing them together into one?

Thank you,

Miquel


   
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(@wvreeven)
Quasar
Joined: 6 years ago
Posts: 2133
 

Hi Miquel,

Go to tab 9) Tools and select "combine RGB". Use a small amount for the ratio of H-Alpha, like 10% or 20%, to start with and see how the image changes. Too much might upset the colour balance.

 

HTH, Wouter


   
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(@mcbbcn)
Red Giant
Joined: 6 years ago
Posts: 43
Topic starter  

Hi,

Thanks for the tip. I know my color shot and my Ha shot are slightly different in size. If "combine RGB" can take care of that slight difference in size, it would be great. I will give it a try.

Best,

Miquel

 


   
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(@wvreeven)
Quasar
Joined: 6 years ago
Posts: 2133
 

Hi,

You may need to register the two images first to make sure they are aligned.

 

Wouter


   
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(@mcbbcn)
Red Giant
Joined: 6 years ago
Posts: 43
Topic starter  

Hi Wouter,

I will do that. Thank you!


   
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(@mcbbcn)
Red Giant
Joined: 6 years ago
Posts: 43
Topic starter  

Hi Wouter,

I used the RGB combine and I mapped my Ha fame to Hydrogen Alpha but I'm a bit confused about how I map my color image. I tried to select custom for my color image, but then it is asking me to map R, G, B and I don't have R,G and B frames. I just have a color image. So, how I do map my color image?

Best,

Miquel


   
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(@kijja)
Black Hole
Joined: 6 years ago
Posts: 149
 

Hi Miquel,

You need to create 3 monochrome R G &B files from a color image This will be done by loading the color image then go to 2 calibration tab, in the very end of sub menu check split channels for saving calibration frames. Then you can go on loading Ha and the mono RGB register and normalize them if they were not from the same optics. You then can combine these files in combine rgb tool. 

Clear skies, 

Kijja

 


   
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(@mcbbcn)
Red Giant
Joined: 6 years ago
Posts: 43
Topic starter  

Hi Kijja,

Thanks for the tip. In the end, I loaded the image as custom and click ok for the same image to be used with red, blue and green and it worked ok.

Best

Miquel

 

 


   
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(@mcbbcn)
Red Giant
Joined: 6 years ago
Posts: 43
Topic starter  

Hi again,

I have a question about ‘RGB Combine’ as it sounds like a pixel math operation but when I increase the Ha signal, it seems to be the same percentage for all the channels (R,G,B).

if I wanted to apply 80% of the Ha signal to the red channel, then 20% of the Ha signal to the blue channel and 20% of the Ha signal to the green channel, how would I do that?

Best,

Miquel


   
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