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Outline Video
Is there as simple way to create an outline from an alpha matte? I have a video of a person cut out from the back ground… how may i apply a outline to this video [image sequence] in ae?
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2 Replies
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Okay, I think this will work. duplicate the layer, after it has been cut out, scale one of the two layers up so that the other one fits inside it, make the inside layer into an alphpa matt, a sillowete alpha transform layer. Precomp, maintaining layer properties. now you should have just the outline of the layer you scaled up. make that into an alpha matta and you should have it …
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What you most likely want to do is use your alpha matte layer as a track matte for the original footage.
have your alpha video layer(or whatever) above the footage layer you want trackmatted in the timeline. Select the trackmatte checkbox for the footage layer and select your alpha layer from the drop down menu.
That should be it. This only works if you have a seperate alpha layer video and your seperate footage layer. But if you have other configurations there are always many different ways… so play around with it.
peace,
Michael
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