Reducing haloing

[Ady]

When altering curves, levels,contrast and other tweaks in PS I get the haloing effect, for example on the tops of trees sticking up into the sky. What is the best way to avoid this other than too much processing?

 

[William Petruzzo]

Can you post an example? I'm having difficulty picturing what you're describing when only making basic tweaks like curves, levels and contrast.

 

[Ady]

I have just replaced the one I had on Flickr with a slightly less processed and much reduced halo effect. I was also following a tutorial in a book regarding lasso tool for sky area and altering levels but again, this gave a halo effect on where the sky met the land. I have no uploaded pics to link to at the moment to show an example............

 

[KmH]

Then it's quite possible the haloing was caused by the lasso tool settings for edge definition/feathering.

 

[Pugs]

I think that KmH has nailed the issue.