[Insight-users] Extracting surface normals of 3D binary object

[siqi chen]

I would smooth the binary field with GaussianFilter and compute the
gradient, this will give you an approximated normal direction.

On Sat, Feb 27, 2010 at 3:06 PM, J. Pura <puraj at mail.nih.gov> wrote:

>
> Hello,
>
> I would like to know if there is a convenient way in itk to extract the
> surface normal of a 3D binary object at a specific point, or even for a
> small neighborhood of points.
>
> Thank you,
>
> John
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