[vtkusers] vtkImageInterpolator -> gradient
david.gobbi at gmail.com
Mon Jun 13 08:00:43 EDT 2016
On Mon, Jun 13, 2016 at 4:17 AM, Martin Genet <
martin.genet at polytechnique.edu> wrote:
> I was wondering: has there been any progress on this side? It would quite
> useful. Any thought on the implementation? Thanks!
No progress, it's still just an idea. When I wrote that wiki page, I was
thinking the gradient would be useful if these interpolators were used for
either isosurfacing or ray casting. What were you thinking of using the
The computation of derivatives for b-spline interpolation is currently
implemented in the vtkBSplineTransform class, which uses the derivatives to
provide the Jacobian matrix for the transformation:
Computing a gradient would be similar, but would need only three
derivatives instead of nine.
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