This is my attempt with Pixinsight of the Pelican Nebula.
http://www.albireo.gr/astrogallery/n...0/Pelican.html
I did my best to process this image but what I don't like is the purple color gradient at the bottom of the image.
This problem appeared probably because I did something wrong with DBE, background neutralization, color calibration on the RGB frame.
Another explanation could be some bad calibration applying the FLATs...
Do you know how I can get rid of this purple gradient?
I am interested to remove this on the final image, and not go back and do processing from the beginning (make RGB , add L, Ha...)
This is the final FIT image you can download it here if you want to play
https://www.dropbox.com/s/goqy6fyuro...final.fit?dl=0
Thank you