Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

Z3roCool

How to process bloat/halos?

Recommended Posts

Hi there, just wondering if there is a good way of processing images to help with star bloat or halos, not sure which it is in the below 2 images. Is it just something I just put up with, using DSLR (7D Mk1) and 400mm Canon lens. 

Any pointers to processes etc would be greatly appreciated.

Thanks,

Tommy.

P.S I know the processing, colour in Orion is way off :D...just an example.

 

Orion1.jpg

Pleiades.jpg

Share this post


Link to post
Share on other sites

There are various techniques in P'Shop to reduce stars, usually the more you stretch them the worse they get so best done separately from the rest of the image.

Dave

  • Like 1

Share this post


Link to post
Share on other sites

I use Aip4win to do almost all my processing but , like Dave stated there are multi ways to reduce your star size or remove halos . Astronomy tools is a plug-in for Ps that is dedicated to astrophotography and I highly recommend it for any astro -photographer. 

  • Like 1

Share this post


Link to post
Share on other sites

In the case of big bad bloaters this is good in Photoshop:

Make one copy layer.

Use feathered eraser of the right size to remove in one click the bloater and its halo from the top layer. You won't see anything happen because the copy layer is underneath.

Bottom layer active, both layers visible. Open curves. Pin the curve at the level of the background or nebulosity just outside the halo. Put a fixing point or two below that. Pull the curve down just above the original 'background' point.

Olly

  • Like 2

Share this post


Link to post
Share on other sites

Thanks for replies guys...sorry for the delay...been away a while.

Will give these a go.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.