NGC1365 repro with a colour boost

gregbradley · #1 25-02-2014, 02:34 PM

After using the Lab colour boost technique on 2 other galaxy images I thought it would be worth checking how it went with this NGC1365 image.

To me this is the best galaxy image I have gotten recently and among my favourite images I have taken so far.

I think it gave a nice boost without a noise hit.

http://www.pbase.com/gregbradley/image/153645565/large regular size

http://www.pbase.com/gregbradley/ima...45565/original large

I'll be adding to this image next year and bring it up to a 25-30 hour job as its one of those targets that's worth the effort. Its currently at 11 hours 50 minutes.

Greg.

alpal · #2 25-02-2014, 02:42 PM

Wow - that looks great Greg.

IanP · #3 25-02-2014, 03:58 PM

Aaaarrgghh!

Nuff said!

Outstanding !!!

Bassnut (Fred) · #4 25-02-2014, 06:11 PM

I like the colour and detail Greg, top work. Even with the data you have, you could process noise out more without affecting detail.

allan gould · #5 25-02-2014, 06:34 PM

Looking really good there Greg. Love the detail and colour.
Allan

Rod771 (Rod) · #6 25-02-2014, 07:23 PM

Very nice Greg! Great detail

gregbradley · #7 25-02-2014, 09:48 PM

Quote:

Originally Posted by alpal

Wow - that looks great Greg.

Thanks Allan. Yes this one turned out better than normal. I guess its brighter but I also had a patch of good seeing.

Quote:

Originally Posted by IanP

Aaaarrgghh!

Nuff said!

Outstanding !!!

Cheers Ian. Glad you liked it.

Quote:

Originally Posted by Bassnut

I like the colour and detail Greg, top work. Even with the data you have, you could process noise out more without affecting detail.

Thanks Fred. Yes I did have one version that did show less noise. I'll work on that a bit more. You're right I should be able to get that lower with what I have.

Quote:

Originally Posted by allan gould

Looking really good there Greg. Love the detail and colour.
Allan

Cheers Allan.

Quote:

Originally Posted by Rod771

Very nice Greg! Great detail

Thanks Rod. Its one of the best southern galaxies.

Greg.

strongmanmike (Michael) · #8 25-02-2014, 10:27 PM

I like it...but you said recently in the LAB discussion thread "I like saturated colours as long as they are natural"...soooo whatch ya talkin bout Willis..?? do you like saturated colours or not

Mike

astroron (Ron) · #9 25-02-2014, 11:19 PM

Nice image Greg

Is the blue dot in your image a hot pixel or the remnant of Supernova 2012fr.

See APOD image by Martin Pugh.
http://apod.nasa.gov/apod/ap121124.html.
Looks to me to be in the same place.

I would be interested in your thoughts.

Cheers

gregbradley · #10 26-02-2014, 01:50 AM

Quote:

Originally Posted by strongmanmike

I like it...but you said recently in the LAB discussion thread "I like saturated colours as long as they are natural"...soooo whatch ya talkin bout Willis..?? do you like saturated colours or not

Mike

Ah no, I must be conflicted!

Quote:

Originally Posted by astroron

Nice image Greg

Is the blue dot in your image a hot pixel or the remnant of Supernova 2012fr.

See APOD image by Martin Pugh.
http://apod.nasa.gov/apod/ap121124.html.
Looks to me to be in the same place.

I would be interested in your thoughts.

Cheers

It may well be. Funny you point that out as it was brighter than that in the image and stood out more and I toned it down.

I'll check the masters and see if its in each one or only blue.

It doesn't quite look like an artifact.

Greg.

Astroman (Andrew Wall) · #11 26-02-2014, 07:11 AM

Looks very nice Greg. Great detail in the galaxy.

gregbradley · #12 26-02-2014, 10:42 AM

Quote:

Originally Posted by Astroman

Looks very nice Greg. Great detail in the galaxy.

Thanks Andrew. It shows more detail than I normally see with this setup but then again its a fairly large galaxy for Southern Skies.

Greg.

gregbradley · #13 26-02-2014, 06:00 PM

I did some judicious noise reduction on selected areas. It looks more polished now.

Same links.

Greg.

E_ri_k (Erik) · #14 26-02-2014, 06:06 PM

Thats beautiful Greg. Lovely wispy arms

Erik

gregbradley · #15 26-02-2014, 06:08 PM

Quote:

Originally Posted by E_ri_k

Thats beautiful Greg. Lovely wispy arms

Erik

Thanks Eric. Its one of my favourite images now. Some just work out well.

Greg.

tilbrook@rbe.ne (Justin Tilbrook) · #16 26-02-2014, 06:21 PM

Lovely image Greg!

The colour boost really makes some of those fainter detail pop.

Cheers,

Justin.

gregbradley · #17 26-02-2014, 06:37 PM

Quote:

Originally Posted by E_ri_k

Thats beautiful Greg. Lovely wispy arms

Erik

Quote:

Originally Posted by tilbrook@rbe.ne

Lovely image Greg!

The colour boost really makes some of those fainter detail pop.

Cheers,

Justin.

Thanks Justin. Its a good technique as it boosts the colour without increasing the noise which is unusual.

Greg.

Geoff45 (Geoff) · #18 26-02-2014, 07:09 PM

Nice one Greg. I like the colour boost. I'm starting to like quite a bit of saturation--strong but not lurid. My one reservation is that the stars may be a bit hard-edged.
Geoff

alpal · #19 26-02-2014, 08:12 PM

Quote:

Originally Posted by ghsmith45

Nice one Greg. I like the colour boost. I'm starting to like quite a bit of saturation--strong but not lurid. My one reservation is that the stars may be a bit hard-edged.
Geoff

I agree but it takes less than 1 minute to adjust that:
In Photoshop:
select colour range, highlights,
modify, expand, feather, blur by 1 to 2 pixels.

So it's not really a problem.

cheers
Allan

gregbradley · #20 26-02-2014, 11:45 PM

Quote:

Originally Posted by ghsmith45

Nice one Greg. I like the colour boost. I'm starting to like quite a bit of saturation--strong but not lurid. My one reservation is that the stars may be a bit hard-edged.
Geoff

I softened them a tad. Probably came from some deconvolution early on.

Quote:

Originally Posted by alpal

I agree but it takes less than 1 minute to adjust that:
In Photoshop:
select colour range, highlights,
modify, expand, feather, blur by 1 to 2 pixels.

So it's not really a problem.

cheers
Allan

Took 55 seconds! Done, they were a tad harsh.

Greg.