Gradients in alpha channels

[Troy Pearse]

My alpha channel contains a white circle in the middle which then fades (gradient) out to black around the edges(like a greyscale sun).
When I use this alpha channel as a selections is does not pick up all the gradient part of the channel.
I want to use the gradient part of the channel to make those pixels more or less transparent as it fades from black to white.
Hope this makes sense.
Cheers
Troy

[Thomas Madsen]

Troy Pearse wrote:

> When I use this alpha channel as a selections is does not pick up
> all the gradient part of the channel.

Where your gradient is white you'll have 100 % selected and where
it's black you'll have 0 % selected. All in between is more or less
selected but you can't see the marching ants in a selection where
there's less than 50 % of the pixels selected. It's there, but you
just can't see it.

--
Regards
Madsen.

[Thomas Madsen]

Thomas Madsen wrote:

> but you can't see the marching ants in a selection where
> there's less than 50 % of the pixels selected. It's there, but you
> just can't see it.

I forgot to mention that you can turn on Quick Mask Mode (Q) when you
have made a selection out of your alpha channel. Then you can see how
it works.

--
Regards
Madsen.