On 6 Sep 2001, at 14:59, Tim Lambert wrote:
> "Rebecca J. Walter" <[EMAIL PROTECTED]> writes:
> > it might be useful if the color to alpha filter could a) interact
> > with
> That reminds me:  I'd like to use the color to alpha filter for
> chroma-keying.  That is, stand the subject in front of a blue screen
> and use color-to-alpha to remove all the blue.  However, the filter
> removes too much blue -- the resulting colour is as saturated as
> possible, even if the original colour wasn't so saturated.  I'm
> thinking that it would be handy if the color-to-alpha had a preview
> and slider that went from 0 to 1, where 0 = "do nothing" and 1 =
> current behaviour and 0.5 gives a result half way between that for 0
> and 1. 
> Does this seem useful?  Is there a better way to do this?

Color to alpha does not seem to be in the Windows distribution of 
GIMP (?), so I have no way of comparing. (So my apologies if I talk 

Does <image>/Select/By Color what you want?

branko collin
Gimp-developer mailing list

Reply via email to