[vtkusers] image data pseudo-contour filter

[Randy Heiland]

Hi folks,

Is there a filter for image data that will provide *lined* "contours" equidistant between pixels of different values?  For example, given the data:
0 1 0
5 5 5

I'd like to get 3 squares (1 for each of 0,1,0) and 1 rectangle for the 555.

thanks, Randy