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.

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