[Insight-developers] image PixelType when using RegistrationMetricv4

[brian avants]

hi nick , xiaoxiao

it's the optimization framework that forced this - michael stauffer
did a pass through rewriting the optimization framework with a
template parameter but this was nixed in one of the developer
meetings.

agree that it's not ideal --- however, upside is that solutions should
be more stable/precise, to state the obvious.

b

brian




On Thu, Jan 17, 2013 at 10:55 AM, Nicholas Tustison <ntustison at gmail.com> wrote:
> Yeah, this is a legacy issue that we need to address but I don't know how
> easy it's going to be.  It's due to the fact that the transform framework
> requires
> double type which predates our work.  Brian, Michael and I will have to
> discuss this to see if we can fix it or at least minimize the places where
> double
> is required.
>
> Nick
>
>
> On Jan 17, 2013, at 10:50 AM, Xiaoxiao Liu <xiaoxiao.liu at kitware.com> wrote:
>
> Hi Nick,
>    With the recent changes in the RegistrationMetricv4, seems that the
> PixeType of an image needs to be always set to double?
>    Old registration code  that with float type fails to compile, but runs
> fine with double :
> https://github.com/InsightSoftwareConsortium/ITKv4-TheNextGeneration-Tutorial/commit/20df5ac66d43061b5d1ca3665dd1712a5986a879
>    The internal parameter measurements are using double, but is there a
> reason to require the image type to be double as well? Am I missing
> something?
>    Please give me some pointers. Thanks.
>
> -- Xiaoxiao
>
>
> ---------------------------------------------
> Xiaoxiao Liu, Ph.D.
> R & D Engineer
> Kitware Inc.
> Clifton Park, NY
> Phone: (518) 881-4924  or  (518) 371-3971 x124
>
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Kitware offers ITK Training Courses, for more information visit:
> http://kitware.com/products/protraining.php
>
> Please keep messages on-topic and check the ITK FAQ at:
> http://www.itk.org/Wiki/ITK_FAQ
>
> Follow this link to subscribe/unsubscribe:
> http://www.itk.org/mailman/listinfo/insight-developers
>