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[Luigi]

Hi there!

Can I ask you for tips, technique and ideas for removing halos in Gimp? How soft a brush? what kind of tools to use ? anything you can post will help me and probably some others.

thanks!
Luis

[jgsack]

Perhaps you could tell more about this particular halo effect. What causes them; maybe post a small example.

..umm, surely you are not talking about halos resulting from oversharpening, are you? If that were the case, then you shouold listen to the doctor who says "if it hurts when you do that, then don't do that"   

..jim

[Rolf]

An example would be nice.

I try to avoid them.... ;-)

[Luigi]

This is an example:
(photo below in another post)

[Rolf]

"THIS PHOTO IS CURRENTLY UNAVAILABLE."  :-(

Set to "friends only"?

BTW, our Versace book project is not forgotten - I can't shoot what I need for that at the moment. Still got the iris inflammation.

[eBrnd]

I want to point you to the convolution matrix for that - I don't know if it's really suited for what you need, but it's a very powerful tool.

I still have making a tutorial about that on my todo-List for you mtg-people... I have lots of other stuff to do, but maybe one day it will happen - or someone else will do it first and make me miss that opportunity to contribute

[Luigi]

I don't know whats wrong with flickr... the photo is public... (very)

Lets see now:


Rolf get better from that eye and thanks for not forgetting the project!

Luigi

"THIS PHOTO IS CURRENTLY UNAVAILABLE."  :-(

Set to "friends only"?

BTW, our Versace book project is not forgotten - I can't shoot what I need for that at the moment. Still got the iris inflammation.

[Luigi]

I would love a tutorial about the convolution matrix!! please!!

I want to point you to the convolution matrix for that - I don't know if it's really suited for what you need, but it's a very powerful tool.

I still have making a tutorial about that on my todo-List for you mtg-people... I have lots of other stuff to do, but maybe one day it will happen - or someone else will do it first and make me miss that opportunity to contribute

[jgsack]

@Luigi

Could you tell what you have done to get this picture to this state? Is this the default output of your camera? Have you done _any_ in-camera or utility program manipulation or graphics editing on it?

..jim

[Luigi]

Its an HDR, made with photomatix, photomatix does have an option to reduce halos but that decreases the quality of the overall result. So I would like to get the output from photomatix and use Gimp to remove the halos. I just don't know which is the best way to do it

@Luigi

Could you tell what you have done to get this picture to this state? Is this the default output of your camera? Have you done _any_ in-camera or utility program manipulation or graphics editing on it?

..jim

[monoceros84]

Well, for having a big influence on the result I would use dodge&burn. But I just tried a quick and dirty solution and it worked quite well:



You can download the XCF here:
http://www.gedankenquirl.de/download/halo.xcf

It simply a second layer on top in overlay mode with inverted and desaturated colours. To avoid a contrast reduction in the whole image it has a black layer mask with white parts in the halo areas. To get even stronger results, the layer is duplicated again.

Could you live with that?

[Luigi]

Thanks Mathias I think that works very well and is simple to do in most pictures, exactly what I needed.

Thanks a lot!
Luigi