Deconvolution comparison (NGC6888)

[Aramcheck]

I recently posted an image of NGC6888 the crescent nebula, and have been having a play around with Deconvolution in Pixinsight to try to improve on the result.

It's a bit fiddly but worth doing methinks. Is the process best applied to the whole image, or masked? As I understand it the process of measuring the typical star shape allows for a correction to be applied, to help reduce the effects of the atmosphere. If so I presume it's best applied to the image as a whole?

Here's a comparison close-up with & without Deconvolution, and the v2 image with it applied.

Cheers
Ivor

[TerryMcK]

Masked is the way to go. Dylan O’donnell did a video a few years ago showing how he approaches it. Have a look on his YouTube channel for the video. I think it was something like a beginners guide.