[vtkusers] center position coordinates

[jose beotegui]

Hello users,
I'm using VTK 4.0 and Tcl/Tk.
I have a BMP image of white circles over a black
background.
I want to get the center pixel coordinate of every
circle (to convert them in a grid of vtkPoints) but I
don't know how to do it.
How can I get the center position of the circles?

Thanks in advance.


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