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.


Sign in to follow this  

What's the green colouration on my photo?

Recommended Posts

A couple of months ago I got 100 images of the moon, stacked them and brought out the saturation to reveal the colours. I think that the brown is iron deposits and the blue is titanium but I have no idea what the green is. Is that just how it is when the terminator shows like that?

DSC_0212_lapl4_ap42011111.dng (4).jpg

Share this post

Link to post
Share on other sites

The black colour balance was slightly off during capture (quite normal) so your unprocessed image would have had a slight green cast in the blacks. Before doing heavy stretching (levels or saturation) you need to ensure the black and white points of your image are actually colour neutral, if possible. Your background is clipped to zero so the background cast is clipped off and is only visible in the dark areas above level zero. It's best to ensure that the offset or brightness in your image when capturing is set such that the background is not clipped. You can then easily see any colour cast present and neutralise it before stretching. If you wish you can set the background to zero when you've finished processing.


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.

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.

Sign in to follow this  

  • 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.