How to extract edge from a watersheded image?

[Stéfan van der Walt]

Hi Zetian

On Wed, Mar 27, 2013 at 5:07 AM, Zetian Yang <zetian.yang at gmail.com> wrote:
> I have been trying the watershed algorithm in the skimage package and it is
> really fantastic. Recently I have a problem where the edge of one segmented
> image is need. Is there a convenient way to extract edges of the watersheded
> result?

I'm glad you find the package useful!  Do you need the edges as
coordinates, or do you need a bitmap of the edges?  We have marching
squares for contour finding, edge detection, etc.

Stéfan