[Insight-users] Using filter with an Image with scalars of type short doesn't compile

[Jim Miller]

The documentation for this filter says the output image type must be a
floating point image (float or double).

This requirements is because the filter is iterative and calculates
gradients.  If the output type is short, there will be considerable
round-off, overflow, and round-off accumulation which could produce
substantial artefacts.

To process your image of shorts, you should be able to instantiate the
filter with an input of an image of shorts and an output of an image of
floats.

If you want the final result to be an image of shorts, then used a
CastImageFilter after the curvature flow filter.

Jim


On 5/6/06, Chase Yarbrough <vergil at gmail.com> wrote:
>
> It has been fixed in itkMinMaxCurvatureFlowFunction.txx, but now I am
> getting the same problem in itkLevelSetFunction.txx.  Any ideas?
>
> Thanks,
> Chase
>
>
> On 4/17/06, Karthik Krishnan <Karthik.Krishnan at kitware.com> wrote:
> >
> > Are you in CVS ?
> >
> > I think this was fixed in CVS a year ago:
> > http://www.itk.org/cgi-bin/viewcvs.cgi/Code/Algorithms/itkMinMaxCurvatureFlowFunction.txx?root=Insight&r1=1.22&r2=1.23
> >
> >
> > -karthik
> >
> > Chase Yarbrough wrote:
> >
> > > Hello,
> > >
> > > I want to use the filter itkMinMaxCurvatureFlowFilter on an image that
> > > has scalars of type short.  I am compiling with the Visual Studio .NET
> >
> > > 2003 compiler.  I am getting the error that a call to std::sqrt inside
> > > of the filter is ambiguous, listing a few options with double or float
> > > parameters.  Do I need to convert all of my scalars to double or
> > > float, or is there another way around this?  If I do have to convert
> > > them all, how can I do that?
> > >
> > > Thanks,
> > > Chase Yarbrough
> > >
> > >------------------------------------------------------------------------
> >
> > >
> > >_______________________________________________
> > >Insight-users mailing list
> > >Insight-users at itk.org
> > > http://www.itk.org/mailman/listinfo/insight-users
> > >
> > >
> >
>
>
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