[Insight-developers] MGHImageIO bug fix, need to get the fist propagated to both ITK and Slicer

[Matt McCormick]

Hi Kent,

My vote is of course for B) -- we can add it to ITK's release branch
soon after, and Slicer can use the updated release branch SHA.

Thanks,
Matt

On Fri, Sep 20, 2013 at 9:25 PM, Williams, Norman K
<norman-k-williams at uiowa.edu> wrote:
> If I was just proposing a change to ITK this would be a bit easier -- I'd
> just go through ITK's gerrit review system.
>
> As it is this has a few more moving parts.
>
> The problem was that MGHImageIO was writing out Image origins incorrectly.
> Eun Young Kim discovered this while using SimpleITK within Slicer to read
> and write MGZ files.
>
> I re-wrote the 'WriteHeader' code where it converts the origin from ITK
> conventions to FreeSurfer conventions, so the conversion code on the Write
> side matches that on the Read side.
>
> But getting this incorporated back into Slicer and ITK has more than one
> step.
>
> ITK:
> 1. Merge the pull request into the Slicer/itkMGHImageIO repository on
> github. The pull request is here:
> https://github.com/Slicer/itkMGHImageIO/pull/3
> 2. Get a topic through ITK Gerrit to update the SHA to match the revision
> of my change.
>
> SLICER:
>
> Slicer has an older version of MGHImageIO than the one used by ITK; I
> don't know if Slicer uses this and turns on the MGHImageIO remote module
> when it builds ITK.
> A) If Slicer uses the old code in Slicer/Libs/MGHImageIO, then this should
> be replaced by the code in the Github repository above.
> B) If Slicer uses the ITK version via the ITK remote module for
> itkMGHImageIO, then Š well there's a bit of a problem, as when the fix
> gets propogated through into ITK, it will be at the Development head for
> ITK, and be some time before it's part of a ITK Minor version release.
> Slicer no doubt picks a particular ITK version and sticks with it until a
> newer version comes along with sufficient new functionality and bug fixes
> to justify re-validating ITK all over again with Slicer.
>
> So I have the fix, I just need to know what I need to do for it to be
> pushed where it needs to be.
>
>
> --
> Kent Williams norman-k-williams at uiowa.edu
>
>
>
>
>
>
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