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HA processing experiment , what do you think ?

Processing H-alpha LRGB Deep Sky
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James avatar
James avatar
Hi all , I was looking for a way to get pure Ha and color stars , so I came up with this after some time , it might be something stupid, but I like the result 

I shot LRGB and Ha with a mono camera .

I processed Ha as normal streched,  removed stars and converted to RGB . to that  I added color stars I had  removed from a RGB version  and applied  L  .
 I tweaked the image in curves  then removed stars and reduced them .
here is what I got ,

What do you think , is it any good , is it rubbish, perhaps its a common way of processing , I don't know but i never saw it before

cheers and clear sky  !! 

https://astrob.in/94xown/0/

Ashraf AbuSara avatar
Ashraf AbuSara avatar
I really like the result, but don't follow the process. Can you elaborate more on your on how you converted the monocrhome Ha frame to RGB?
James avatar
James avatar
Hi , sorry , here I go :

1 Ha mono image , process as normal , remove stars . and convert to RGB, you get an B&W image of Ha

2 add to the B6W RGB Ha the color stars from a normal RGB composition , you get your B6W image with color stars and tainted colour Ha
 
3 saturate with curves and tweak as you like 

4 add Luminance to your image ( I has shot L R G Boo the same image )

5 remove stars , tweak and add stars again 

hope that's easier to understand 

cheers 

James
James avatar
James avatar
Just was curious to know if anyone else had tried, I was expecting to get a B&W image with color stars I thoughtcould look nice ;-)
Frank Alvaro avatar
Frank Alvaro avatar
James:
Just was curious to know if anyone else had tried, I was expecting to get a B&W image with color stars I thoughtcould look nice ;-)

Coincidently,  I was trying the same thing yesterday with a boring RGB image of a Sharpless nebula which looks much more interesting as just a  monochrome Ha image. I didn't go very far with it, but maybe I should try again to get the RGB stars combined with it.
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