M51 redone...

[UlteriorModem]

I had kind of promised to re-visit this data. The data is quite good and was able to get results from it.

Managed to stifle the low scale noise and still keep a lot of the nebulosity of the galaxy visible. Had a little fun with the color too

Pass 2 by Tom Whit, on Flickr

[Mac]

I had kind of promised to re-visit this data. The data is quite good and was able to get results from it.

Managed to stifle the low scale noise and still keep a lot of the nebulosity of the galaxy visible. Had a little fun with the color too

Very very nice Tom. Tell us your secrets to reduce noise

[TheButcher]

Excellent Tom, Great Job!

[UlteriorModem]

I had kind of promised to re-visit this data. The data is quite good and was able to get results from it.

Managed to stifle the low scale noise and still keep a lot of the nebulosity of the galaxy visible. Had a little fun with the color too

Very very nice Tom. Tell us your secrets to reduce noise

I use pixinsight careful use of range mask + star mask (in pixel math) to create a mask that covers the stars and hopefully most of the object. Then hammer at it with MLT.

Getting the mask right is the trickiest part. Lots of trial and error there because every set of data is different

[Don Quixote]

Very nicely done, Tom.

[Mac]

I use pixinsight careful use of range mask + star mask (in pixel math) to create a mask that covers the stars and hopefully most of the object. Then hammer at it with MLT.

Getting the mask right is the trickiest part. Lots of trial and error there because every set of data is different

Thanks Tom... I haven't done much with masks in PI, the next step in my editing evolution.

[UlteriorModem]

It's fairly easy once you get the hang of it using PI's Range mask, and Star mask. Like I said a good deal of trial and error is required to get the results you want as every set of data is different.

What I do is create a range mask, and a star mask, then 'merge' the two using pixel math to make a 'master template'. The idea is to protect the stars and target data while you manipulate the background.

Watch the 'fuzziness' of the masks you dont want them too sharp, if you do you will see some weirdness after altering the background.