[Insight-users] Local Otsu and Region Splitter

[Richard Beare]

If your region can be defined by a mask there is a MaskAdaptor you can use.

http://hdl.handle.net/1926/575

More flexible than hypercubes, but possibly not what you're after.

I thought that the OtsuThresholdImageCalculator has a SetRegion
method, which should do something along the lines of what you want.
However you'll need to apply the threshold separately.

On Wed, Jun 8, 2011 at 9:02 AM, Neil Panjwani <paniwani at gmail.com> wrote:
> Hi,
> I need to split my image region into several subregions (hyper cubes) to
> compute a local otsu threshold. I tried using
> the ImageRegionMultidimensionalSplitter, but it is buggy and produces
> invalid subregions. My test image is 512x512x5 but the filter returned an
> index of 0,0,6.
> I'm using ITK 3.20.0. I noticed in ITKv4 that this filter was changed. When
> trying it in ITKv4, however, I ran into another error in that I was unable
> to read my dicom series (GDCMImageIO...: Cannot read requested file).
> How do I get around these pesky problems? I do not want to move all my code
> to ITKv4 in the fear that even more will break and require hours and hours
> of debugging...
> Does someone have code to compute a local otsu threshold?
> Thanks,
> Neil
>
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