[Insight-users] Fwd: Seed Value for CollidingFrontsImageFilter

[Dan Mueller]

Forward to Insight-users (with attachments removed to avoid bounce).

---------- Forwarded message ----------
From: Dan Mueller <dan.muel at gmail.com>
Date: 2009/2/12
Subject: Re: [Insight-users] Seed Value for CollidingFrontsImageFilter
To: blloyd at vision.ee.ethz.ch
Cc: Insight-users at itk.org

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).