Blue Ten

Sorry for reviving an old thread, but I've finally found out how to get the result I was looking for. Select Color Range always caused too much loss of image data for me... and I wasn't quite sure how to pull off the vector mask trick. Thanks for the suggestions though, I think they pointed me in the right direction.

If you have a grayscale image (scanned line art, etc), navigate to the Channels palette and ctrl+click any of the channels. Then go to Select>Inverse, create a new layer, and Fill with black. Delete the old layer, and you've 'converted the grayscale image to alpha'.

This has worked perfectly for me each time without messing up the image or leaving behind solid bits of grays and whites.

To the custom Actions it goes :D.

I may have been unclear about what I was trying to do originally -- so I apologize if that was the case ^^;.