NGC55 repro

[DiscoDuck (Paul)]

I had a go at reprocessing an image of NGC55 from a couple of months back. This time I used deconvolution in PixInsight, which I haven't used successfully much before, having this time read a tutorial first (yes, when all else fails, read the *@#$ manual ).

Though I think it is much sharper, the colour balance is very different this time around. Not sure which is the more "correct" - the older balance looks more pleasing to me, but that's not enough reason to go with that!!

Links to old and new images on Astrobin. (New and old images also attached). And original thread is here.

Thanks for looking and for any comments.

Paul

[alpal]

Not bad.
I think you may have sharpened hot pixels as there are
many extra stars now?

cheers
Allan

[Atmos (Colin)]

I prefer the older one over the new. The colour balance in the old is definitely better (the new one needs a SCNR for green reduction) and the stars look nicer. The new one looks like it has a lot more noise reduction done to it also.

My goes to the original which I do like

[DiscoDuck (Paul)]

Had another play. Difficult to recreate the old colour balance exactly, so I cheated and took luminance from the new image and the RGB channels from the old

Result is here.

[Geoff45 (Geoff)]

Ver good Paul. This is quite a difficult galaxy to image. You really have to get good detail and contrast to make it interesting and I think you've nailed it pretty well.
Geoff

[DiscoDuck (Paul)]

Thank you Geoff.

[PeterSEllis (Peter)]

I wouldn't worry too much about the color, from a scientific view point, I can see many more stars in the Galaxy (and they are not hot pixels). I will have to give pixinsight deconvolution a try.
Well done.

Cheers
Peter

[DiscoDuck (Paul)]

Originally Posted by PeterSEllis

I wouldn't worry too much about the color, from a scientific view point, I can see many more stars in the Galaxy (and they are not hot pixels). I will have to give pixinsight deconvolution a try.

Thanks Peter. The final (well, latest ) version (version F in Astrobin) has the colour rebalanced anyway - with, based on advice from others, a slight blue reduction and also a slight blurring applied to make the overly sharpened stars appear a bit less, well, sharp! The blurring I did with a convolution in PixInsight. Seemed odd going to all that trouble to pull out detail and then to blur it - but I think it makes it look a bit less overdone.