Alpha Channel from B&W layer

LF
Posted By
Lesley_Flanigan
Apr 30, 2004
Views
170
Replies
2
Status
Closed
I know how to create an alpha channel and paint in your mask using black and white. My question is this: How can you take an already black and white layer, and convert its detailed information into an alpha channel? I can do this in After Effects pretty easily, but can’t find a way to do it using Photoshop 7.

Thanks for any ideas…
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alpha channel layer

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EH
Ed_Hannigan
Apr 30, 2004
If CMYK turn off all other layers and duplicate the Black channel. If RGB any of the channels will do. If Grayscale duplicate Gray.
J
jonf
Apr 30, 2004
Are copy the b/w layer, create a new alpha channel, and paste. The possibilities are endless.

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