[Insight-users] Obtain overlapping pixel volume

[Jonathan Wong]

Hi. The 3d images I have already are segmented and are therefore binary. If
i wanted to compare the the overlapping number of voxels how would i do
this? I've been looking around on the ITK mailing list and someone has tried
to use the SpatialObjecttoImageFilter, adding two images together and then
counting the number of pixels with intensity 2, and used the
LabelImageStatistics filter.

The LabelImageStatistics filter does not work for me (it compiles but the
LabelImageStatisticsFilter Test fails), and I'm running it off of CVS. Also
the SpatialObjectImageFilter and iterating through the volume give me
different results.

I don't really know what the spatialObjectImageFilter does and would like to
know how it works.

Also what modifications would i have to make, if i were comparing images of
the same size, but different resolutions also pre-segmented to be binary?

Thanks
-Jonathan Wong
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