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masking the subject causes undesired halo effect

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Isaac Kumer
masking the subject causes undesired halo effect
on Jul 4, 2011 at 11:26:47 am

I have a person standing with a background that I want to blur to eliminate recognizable features such as people signs etc...

I masked the person on a new layer, applied a gaussian blur to the previous layer.... because the background layer has the person in it - they too get blurred and cause a ghosting or halo effect around the masked person.

My solution. Clone the background areas to cause the the person on the blurred background to shrink so to speak.... is there a better way?

Thanks for any insights you might have.


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andy baumgartner
Re: masking the subject causes undesired halo effect
on Jul 5, 2011 at 8:38:44 pm

If cloning doesn't work you could also try eliminating the background person with content aware fill/delete. Making the person slightly larger might also work.


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Isaac Kumer
Re: masking the subject causes undesired halo effect
on Jul 6, 2011 at 7:07:00 am

thanks for your response.

my solution is as follow.

mask the subject that I want to keep in focus.
invert the mask.
turn the mask off.

create a lens blur on the image (not the mask)
assign source: layer mask.

modify controls to my liking.
render.

viola.
works great.


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