Luminous Landscape Forum

Raw & Post Processing, Printing => Digital Image Processing => Topic started by: sniper on February 05, 2013, 04:30:04 am

Title: trying to create colour fringing in photoshop?
Post by: sniper on February 05, 2013, 04:30:04 am

I'm trying to add a colour fringing effect with photoshop but not having much luck, I've tried the lens correction panel and playing with the various sliders but I can't get a strong enough effect, any ideas on a way to do it?  I did consider splitting the chanels but can't work out how to move them slightly out of register after.

Thanks

Title: Re: trying to create colour fringing in photoshop?
Post by: Lightbox on February 05, 2013, 06:55:34 am

All you need to do is click on one of the original channels in an image and use the arrow keys to shift a particular channel...

Title: Re: trying to create colour fringing in photoshop?
Post by: sniper on February 05, 2013, 11:28:33 am

Quote from: Lightbox on February 05, 2013, 06:55:34 am

All you need to do is click on one of the original channels in an image and use the arrow keys to shift a particular channel...

Oh for heavens sake, I never thought of that, I assumed they were locked untill split.
Job done.

Thank you Lightbox.  

Title: Re: trying to create colour fringing in photoshop?
Post by: Lightbox on February 06, 2013, 06:23:19 am

No worries, some things can be simple in photoshop :)

Title: Re: trying to create colour fringing in photoshop?
Post by: Ken Bennett on February 06, 2013, 07:13:45 am

Or you could open the image in Camera Raw and use the chromatic aberration tool to add the fringing. Magenta/green fringing would be easy.

Title: Re: trying to create colour fringing in photoshop?
Post by: sniper on February 09, 2013, 07:16:54 am

I tried that but I couldn't get enough fringing that way sadly, would have been easier.
 I have hit another snag though, if I create a duplicate layer I can't move the channels in that (but can in the background layer) I can work around it by creating a duplicate image and editing that with the effect, but I'd prefere to add the effect on a duplicate layer if possible.  Any ideas on moving the channels in a duplicate layer?

Thanks for the replies.
Wayne

Title: Re: trying to create colour fringing in photoshop?
Post by: hugowolf on February 09, 2013, 08:00:41 am

Duplicate the image. Perform the channel movements on the duplicate. Select and copy the duplicate (ctrl+A and ctrl+C), then paste (ctrl+V) this onto the orginal image (it will paste in as a layer).

Brian A

Title: Re: trying to create colour fringing in photoshop?
Post by: sniper on February 09, 2013, 12:37:23 pm

Thank you Brian, that should do the trick.