[Insight-developers] query/suggestion: adjustable tolerance in ImageToImageFilter

[Williams, Norman K]

If no one volunteers I could take this on in a few weeksŠ depending on the
ITK release schedule of course.

https://itk.icts.uiowa.edu/jira/browse/ITK-2955


--
Kent Williams norman-k-williams at uiowa.edu






On 8/28/12 7:01 PM, "Richard Beare" <richard.beare at gmail.com> wrote:

>Hi,
>I thought I'd mention a problem I just came across that may have a fix
>I missed. If not then perhaps it can go into a feature request.
>
>I was performing a mask operation and received an error saying that
>images weren't in the same space. The relevant code is in the
>ImageToImage filter base class where the orientation matrices are
>checked. There doesn't seem to be a way of adjusting the tolerance or
>turning this check off. My problem image was produced by the spm8
>coregistration procedure, and the difference in orientation matrix
>introduced by rounding  (I assume) was only just greater than the hard
>coded tolerance. I've fixed the problem by explicitly copying the
>geometry in the input nifti files using the fslcpgeom tool, but I
>suspect there should be some ITK specific option to deal with this
>inside a filter. Obviously image information can be copied inside ITK
>code too. Not sure if there is a "right" way to deal with this issue.
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