On Thu, 8 Jul 2004, Theodore D. Sternberg wrote:
> On Thu, 8 Jul 2004, Steve Stavropoulos wrote:
> > > Imagine a picture of a person's face, but with a solid, closed, black,
> > > curve drawn over part of the face. Is there a semi-automated (e.g. like
> > > magic wand, but not like bezier or lasso where I have to trace the curve
> > > with my mouse) way to select the region inside that curve? (The curve is
> > > not an ellipse or rectangle; it can be quite convoluted but it doesn't
> > > intersect itself.)
> > >
> > You could first select just the curve with the magic wand ("select
> > continuous regions") and then Select -> Save to channel. Then on the
> > channel, select the inner area (with the magic wand again) and you
> > have your selection.
> Thank you! Unfortunately, the magic wand is unable to select the inner
> area; if I could have done that it would have solved my problem right
> there. Or is it something special about channels (I guess I don't
> understand why you advise me to save to a channel really...)?
When doing the last select you should have the channel selected in the
channels dialog and NOT any layer of the image. You save the curve in a
channel so you will be able to make any operation you want based on that
selection. You can assume that a channel is a normal greyscale image.
Gimp-user mailing list