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alpha channel

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paule
alpha channel
on Mar 9, 2006 at 5:28:27 pm

Hello everyone,
I have problem with seeing an alpha channel...
I exported a picture from after effects as a straight unmatted file. When I open it in photoshop it sees the alpha channel in the channels but my RGB CHANNEL has a red backgroud. I don't know how to apply the alpha channel to my actual layer.
If you could help it would be great thanks.


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maverick13
Re: alpha channel
on Mar 11, 2006 at 10:30:26 am

It sounds like you have Quick Mask turned on. This shows your alpha channel to you as a red mask over your picture. Try hitting "Q" to turn it off. Regardless, to select the alpha channel, control-click it in the Channels palette. You should see the marching ants around it to indicate it's been selected. At this point you can apply it to another layer as a mask from the menu (not sure exactly where, I use the icon) or by clicking the mask icon at the bottom of the layers palette.


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