Selecting layers from a flattened image

[SeniorS]

I don't know what method you use.
I was talking about making that mask. If you use channel kinda selection then in this picture it isn't 0 white, it have light small but color. And muliplay makes it only darker and darker.
Look at your mask. I bet it isn't white tree on black background but light tree on greyish background.

[strawb]

Thanks for your help guys.

I sound like I know what i'm talking about Paul, but alas, I do not. However I couldn't quite get to grips with the method to remove it from the rasterized image.

After you said it was similar to hair extraction. I remember reading about that a while back and ended up using the Filter > Extract... tool and it worked a dream. Thanks for steering me in the right direction.

I'll stick around and see if I can help others out with my limited knowledge.

John.