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Activity Forums Adobe Photoshop masking the subject causes undesired halo effect

  • masking the subject causes undesired halo effect

    Posted by Isaac Kumer on July 4, 2011 at 11:26 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.

    Isaac Kumer replied 14 years, 10 months ago 2 Members · 2 Replies
  • 2 Replies
  • Andy Baumgartner

    July 5, 2011 at 8:38 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.

  • Isaac Kumer

    July 6, 2011 at 7:07 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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