[Gimp-user] transparency puzzle

[Roy_Pittman <forums gimpusers com>]

> I am presently unable to do something I have done many times. It is
> embarrassing but:
> 1) I have a scan that is in grayscale. I want to keep the black "text"
> and make the white background transparent.
> 2) I t has only one layer.
> 3)I have added an alpha channel.
> 4) The "color to alpha" remains grayed out!
> 5) I am stuck here. I want to send the background color (approximately
> white) to alpha channel.
>
> I have sent a screenshot. I am obviously missing something. Any
> suggestions?


I found the problem.  Apparently no alpha channel in grayscale mode. Made it RGB
and it became workable!
Who knew? I didn't but do now. 

-- 
Roy_Pittman (via www.gimpusers.com/forums)