[Insight-developers] FastMarching with negative speed constant?

[Arnaud GELAS]

Hi all,

It seems to be unusual to set negative speed constant for 
itk::FastMarchingImageFilter, but it is possible. In such a case, 
resulting image should be wrong (due to inversion of min / max, and the 
quadratic solution is different).

Should we constrain the speed constant to be positive? or should we 
rather fix it for the general case?

Best,
Arnaud