[ITK] [ITK-users] ShapeLabelMap Roundness/Perimeter Calculation Issue

[Dženan Zukić]

You have found a bug, great! Now share
<https://itk.org/Wiki/ITK/Git/Develop> the patch with the rest of us the
world.

If you get stuck, please let us know.

Thanks,
Dženan

On Fri, May 13, 2016 at 5:28 PM, ebasafa <ehsan.basafa at gmail.com> wrote:

> Thank you for the pointer! After fiddling with the hxx file for a couple
> hours, I traced the issue further and found out the method vnl_math_abs()
> called on line 537 (which seems like in the repository has been replaced by
> itk::Math::abs() but not implemented in the stable release), provides
> different answers for absolute values in debug and release. Surprisingly,
> for example, this method reports -1 as absolute value of -1 in release!
> Replacing that with std::abs() resolves the issue and now roundness and
> perimeter are the same and (seemingly) correct. I think a bug fix, if not
> already done via itk::Math as I mentioned, is in order.
>
>
>
>
> --
> View this message in context:
> http://itk-insight-users.2283740.n2.nabble.com/ShapeLabelMap-Roundness-Perimeter-Calculation-Issue-tp7588837p7588841.html
> Sent from the ITK Insight Users mailing list archive at Nabble.com.
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