remove green background

duardito

New member
May 31, 2021
4
1
Hi to all,
I am trying to follow all possible tutorials across internet to get a correct background extraction , my image has a lot of light pollution.
wich approach should I follow way to get rid of this gradient?
Attached you can see my image, it is milky way, some suggestion will be appreciated.
regards
 

Attachments

pfile

PTeam Member
Nov 23, 2009
6,726
263
DBE should work, but you will need to increase the sample tolerance to make sure you capture the brightness in the lower left corner.

rob
 
  • Like
Reactions: duardito

duardito

New member
May 31, 2021
4
1
DBE should work, but you will need to increase the sample tolerance to make sure you capture the brightness in the lower left corner.

rob
thanks I am trying it but now image looks noisy and color is strange.
wich steps should I follow ? first DBE and then background neutralization , or maybe SCNR?
thanks
 

pfile

PTeam Member
Nov 23, 2009
6,726
263
on an image like that i would use DBE first. with that much LP in the image most of the signal is probably light pollution, so when you remove that, the noise that's in the actual DSO signal is revealed.

SCNR to green might remove the green cast but it won't remove the LP signal from the other channels. DBE is the right tool for that.

rob
 
  • Like
Reactions: duardito

duardito

New member
May 31, 2021
4
1
well finally I got a good result, instead of using substraction , using division.
Now it is time to remove noise.
 
  • Like
Reactions: pfile