Why not? A little processing would remove them ... unless, that is, you actually don't mind them.
Oh yeh of course...I meant they are there from the optics.
I have tried removing them in Starfire images before but was never happy with the result, always looked like they had been processed out so I just got used to them...any tips here?
I would take an identical field with the Starfire and do a HDR between the two where the stars would have very faint vestiges of the so called haloes but still have the beautiful bright nebula data from the AG12.
Bert
Quote:
Originally Posted by strongmanmike
Oh yeh of course...I meant they are there from the optics.
I have tried removing them in Starfire images before but was never happy with the result, always looked like they had been processed out so I just got used to them...any tips here?
Nicely done Mike. The main thing that stands out to me though are the haloes around the bright stars which seem a tad unsightly. Of course there are techniques for minimizing them.
I would take an identical field with the Starfire and do a HDR between the two where the stars would have very faint vestiges of the so called haloes but still have the beautiful bright nebula data from the AG12.
Bert
Quote:
Originally Posted by Stevec35
Nicely done Mike. The main thing that stands out to me though are the haloes around the bright stars which seem a tad unsightly. Of course there are techniques for minimizing them.
Cheers
Steve
You kidding me Berto ...it's a major operation setting the AG up as is..let alone having to reconfigure everything for the Starfire ..be a dream to have'em side by side on a PME in an observatory though, with two ProLines
I'll have a play with the data tonight, see if I can do anything to the brighter halos...last thing I want to do is butcher the stars and make'em worse...
I have tried removing them in Starfire images before but was never happy with the result, always looked like they had been processed out so I just got used to them...any tips here?
Mike
Would you consider this an improvement? ... Coupla minutes per halo.
Hmm yes, that looks pretty good I guess ...ok so what simple method did I ignore all this time then
Quote:
Originally Posted by multiweb
Yeah I'm interested in the processing of these too. I get heaps with my MPCC.
Start with flattened layer. Duplicate it twice. Make the top layer invisible for the moment.
Middle layer: apply strong median so that all the little stars dissappear completely and the large haloed stars still appear as a faint smudge. I used 25 pixels or so for your 50% version. Be carefull with your median radius, you can overdo and underdo it! Create a hide all layer mask. With a soft edged white paint brush on the layer mask, carefully "reveal" the median layer only over the bright halo so that it and the star are completely gone. Be careful not to hide any residual stars at the boundary of the halo.
Top Layer: Create a hide all mask for this layer as well. With a soft edged white paintbrush, paint the layer mask with a spot centred on the star. Reveal as much of the airy disk as you like. With a very fine white brush you also need to paint the mask to reveal the diff spikes as well. This last step is best done while sober.
Touch up: If the colour where the halo was isn't right, apply a circular marquee tool (feathered) to that area on the middle layer, and colour balance until it looks right. If you've hidden some boundary stars, gently paint the mask in the toplayer with a small soft white brush to reveal them.
Repeat the process using the same layers for all affected stars. Make sure you zoom right in of course so you can see what you're doing.
Start with flattened layer. Duplicate it twice. Make the top layer invisible for the moment.
Middle layer: apply strong median so that all the little stars dissappear completely and the large haloed stars still appear as a faint smudge. I used 25 pixels or so for your 50% version. Be carefull with your median radius, you can overdo and underdo it! Create a hide all layer mask. With a soft edged white paint brush on the layer mask, carefully "reveal" the median layer only over the bright halo so that it and the star are completely gone. Be careful not to hide any residual stars at the boundary of the halo.
Top Layer: Create a hide all mask for this layer as well. With a soft edged white paintbrush, paint the layer mask with a spot centred on the star. Reveal as much of the airy disk as you like. With a very fine white brush you also need to paint the mask to reveal the diff spikes as well. This last step is best done while sober.
Touch up: If the colour where the halo was isn't right, apply a circular marquee tool (feathered) to that area on the middle layer, and colour balance until it looks right. If you've hidden some boundary stars, gently paint the mask in the toplayer with a small soft white brush to reveal them.
Repeat the process using the same layers for all affected stars. Make sure you zoom right in of course so you can see what you're doing.
[QUOTE=marc4darkskies;721263]Start with flattened layer. Duplicate it twice. Make the top layer invisible for the moment.............. /QUOTE]
While I have no problem with instrument artifacts ( in a sense they give a hallmark to an image) I do have a problem with localised image manipulation.
Are you taking pictures of deep space or painting them?
Sure you can paint any picture you like, but is this reality???
As I have mentioned many times before....Cindy Crawford has a mole... yeah
right....photoshop can fix anything....except it wouldn't be Cindy.
..
...it's a major operation setting the AG up as is..let alone having to reconfigure everything for the Starfire 
..be a dream to have'em side by side on a PME in an observatory though, with two ProLines 
...ok so what simple method did I ignore all this time then 
