Hello everybody.
I'm a real fan of skimage,
and use it for numerous image processing stuf.

I'm stuck in a segmentation problem: I have an old Paris map, and I try to separate the streets and the buildings.
I have rough street axis.
This looks like a watershed problem, but sme of the building footprints are not closed, so the watershed starting in streets is bleeding in the buildings.

To avoid that, I was thinking of snake, starting conservatively in the streets, then make them balloon .

I can't find the parameters so the snake balloons.
Is this possible,
would you have any advice?