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Activity Forums Adobe After Effects Keying out Black

  • Keying out Black

    Posted by Robin Lewis on April 11, 2011 at 5:27 pm

    Hi,

    I am hoping to get some advice, I have a shot of a butterfly flying that in against a black background ( this back ground is not perfect but pretty close. I want to Key out the Black so i can have the butterfly fly across my AE graphic, what would be the best way to do this?

    Thanks

    Jim Collins replied 15 years ago 3 Members · 4 Replies
  • 4 Replies
  • Robin Lewis

    April 11, 2011 at 6:28 pm

    I seem to have left my cables for my drive at home so can not check it right now! It is archive so can not reshoot :-s Yet the butterfly is white and the body brown I was hoping I could get it to see black, maybe it was a hope too far.

  • Dave Johnson

    April 12, 2011 at 6:47 pm

    This is basically the same as the Method Dave L. suggests and, therefore, has the same limitations (if there’s no black in the butterfly, which seems unlikely) … you can also an UnMult filter (like the free one from Red Giant that’s primarily intended for use with older Lens Flares that don;t have premult capability built in).

    It’s hard to to day without seeing the image or the background you want it on, as well as the quality level you need, but in some instances a blend mode might even be sufficient for a quick shot.

  • Robin Lewis

    April 12, 2011 at 8:08 pm

    Thank you all for your helped, It proved to be a hard one to do and as i am working on a tight dead line i have decited to animate a drawing of a butterfly instead. On that i have a new problem, the butterfly follows across a “s” shaped path I want this image to turn with the path rather than moving in an unnatural way. I have heard I can do this in a few clicks but unsure how.

    Any thoughts

    Thanks

  • Jim Collins

    April 13, 2011 at 6:16 pm

    You can orient to the path so the butterfly will always be orientated to line the same as you animate it along the path.

    JJC

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