[vtkusers] Setting VOI in a circular manner

[David Gobbi]

Hi Hayden,

The vtkROIStencilSource can generate a circular ROI for an image that
some of the other image filters can use, e.g. vtkImageStencil can
black out all pixels that are outside of the ROI.

 - David

On Sun, Apr 21, 2013 at 8:58 AM, Hayden Smith <s_hayden_28 at yahoo.com> wrote:
> Dear VTK users,
>        I would like to know while using vtkImageReader, is it  possible to
> set VOI in a circular manner from the center of image? Current
> implementation shows setting of VOI in a rectangle.
>
> Thanks and regards,
> Hayden.