[Insight-users] Regarding arbitrary region extraction

[Luis Ibanez]

Hi Xuanaux,

You could compute the bounding box of the contours
by converting their physical coordinates to indexes.

Then use the bounding box region as input to the
RegionOfInterestImageFilter, in order to extract the
rectangular region containing the image regions
that is relevant to the contours.

For details on how to convert physical points to
indexes, please look at the ITK Software Guide

     http://www.itk.org/ItkSoftwareGuide.pdf



    Regards,


           Luis


------------------------------------------------
On Fri, May 21, 2010 at 10:15 PM, xuanaux <xuanaux at gmail.com> wrote:
>
> I have a problem of extracting a region in a 3-D image defined by contours
> loaded from DICOM RT structure file. Basically, I have a cloud of points
> which define the boundary of a certain organ. I want to extract the region
> inside the boundary and apply further process. RegionOfInterestImageFilter
> can only extract a cuboid, but I really want to get rid of the image outside
> the boundary. I tried to create 2-D polygons using those points slice by
> slice. But I have no idea what can I do next. Could anyone give me some
> advices? Thanks!
> --
> View this message in context: http://itk-insight-users.2283740.n2.nabble.com/Regarding-arbitrary-region-extraction-tp5086963p5086963.html
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