On 6 Sep 2001, at 14:59, Tim Lambert wrote: > "Rebecca J. Walter" <rjp@xxxxxxxxxxxx> 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 nonsense.) Does <image>/Select/By Color what you want? -- branko collin collin@xxxxxxxxx
