Excellent project Stefan and an intriguing result, something different and interesting and indeed something I have aaalways wanted to do myself since way back in the day, so thank you for doing it for me
... I wonder if any of that faint stuff is part of the Magellanic steam?
Out of interest, when you are removing the described gradients in an image like this with such mega faint tenuous features spread everywhere, how do you ensure you don't remove or add structures or information..?
Mike