problem with removing light pollution

[Terry Snapp]

Sometimes when I use the tab "removing light pollution", I will see ribbons of different color show up all across my screen.  They seem to come out of the background, though I am not sure.  Sometimes it happens when I put in just the required  5 boxes, sometimes it happens when I add more boxes.  How do I get rid of them?  The only way I have found, is to move the black point and make the field much darker to cover them up.  I suspect there is a better way.

 

Thanks

[Scotty Bishop]

Can you post screenshots of it? I'd like to see your before and after if you don't mind and what kind of image you are running into this on.

[Terry Snapp]

On 12/20/2023 at 9:41 PM, Scotty Bishop said:

Can you post screenshots of it? I'd like to see your before and after if you don't mind and what kind of image you are running into this on.

This shows green and purple bands in left corner and in upper you can see a fainter red band.  These just showed up after I used the reducing light pollution button.   Put in 5 boxes.   This doesn’t always happen but when it does it doesn’t make sense to me

[Terry Snapp]

Here is the before  pix showing none of the color ribbons that are not evident onl the after pix.  I used the remove light pollution button and added 5boxes

[Scotty Bishop]

What you want to do before you do any light pollution removal is to use the batch crop function and then crop out all of the stacking artifacts because otherwise it will not compute a good background. Go ahead and do that first, and also make sure you have the neutralize background box checked on your preview.

You should have something similar to this:

[Scotty Bishop]

Here is the finished product. I have no idea why I haven't processed this one yet. https://telescope.live/gallery/rcw-2-1