[Insight-users] Seed Value for CollidingFrontsImageFilter

[Dan Mueller]

Hi Bryn,

The seed value is used by the underlying
FastMarchingUpwindGradientImageFilter. The output of a
FastMarchingImageFilter is an arrival function, which specifies at
what "time" the expanding front reaches a given point. The seedValue
is used as the initial front, so changing this value changes the time
the front reached the seedPosition. Changing this value will result in
a (slightly) different arrival function (most likely it will be offset
by the value you assigned, eg. 500).