[Insight-developers] Extrapolating vector images

[Kwame Kutten]

Ok, I submitted a report:

http://www.itk.org/Bug/view.php?id=11185

----- Original Message -----
From: Bill Lorensen <bill.lorensen at gmail.com>
Date: Monday, August 30, 2010 7:38 am
Subject: Re: [Insight-developers] Extrapolating vector images
To: Tom Vercauteren <tom.vercauteren at m4x.org>
Cc: Kwame Kutten <kkutten1 at jhmi.edu>, Luis Ibanez <luis.ibanez at kitware.com>, insight-developers at itk.org


> I agree with Tom. Most if not all of the itkVectorXXX classes are
> candidates for removal (maybe not actually removed, but made trivial
> subclasses of their non-vector relatives.)
> 
> Bill
> 
> On Mon, Aug 30, 2010 at 7:11 AM, Tom Vercauteren
> <tom.vercauteren at m4x.org> wrote:
> > Hi Kwame and Luis,
> >
> > My feeling is that the ExtrapolateImageFunction should work with
> > vector images. If not, I would consider this to be a bug.
> >
> > As far as I understand it, the "Vector" versions of the
> > Interpolate/ExtrapolateImageFunctions only exist for historical
> > reasons (lack of partial template specialization on VS6). Now that VS6
> > is gone, I'd rather get rid of all these "vector" classes as proposed
> > in the ITK 4.0 wish list:
> > 
> >
> > Just to make my point, you may look at the
> > LinearInterpolateImageFunctionTest unit test that uses the standard
> > LinearInterpolateImageFunction to interpolate vector images:
> > 
> >
> > Kwame: If anything really forbids the use of vector images in
> > ExtrapolateImageFunction, could you please file a bug report:
> > 
> >
> > Thanks,
> > Tom
> >
> > On Sat, Aug 28, 2010 at 22:04, Luis Ibanez <luis.ibanez at kitware.com> 
> wrote:
> >> Hi Kwame,
> >>
> >>
> >> Great,
> >>
> >> I hope you are planning on submitting
> >> this code to the Insight Journal.
> >>
> >>
> >>      Thanks
> >>
> >>           Luis
> >>
> >> ------------------------------
> >> On Sat, Aug 28, 2010 at 2:54 PM, Kwame Kutten <kkutten1 at jhmi.edu> wrote:
> >>>
> >>> I've just finished doing that (See attached file)
> >>>
> >>> Thanks for your help.
> >>>
> >>> ----- Original Message -----
> >>> From: Luis Ibanez <luis.ibanez at kitware.com>
> >>> Date: Saturday, August 28, 2010 2:02 pm
> >>> Subject: Re: [Insight-developers] Extrapolating vector images
> >>> To: Kwame Kutten <kkutten1 at jhmi.edu>
> >>> Cc: insight-developers at itk.org
> >>>
> >>>
> >>> > Hi Kwame,
> >>> >
> >>> > I would think that you should  write a class
> >>> >
> >>> >      itkVectorExtrapolateImageFunction
> >>> >
> >>> >
> >>> > similar to the current
> >>> >
> >>> >      itkVectorInterpolateImageFunction
> >>> >
> >>> >
> >>> >
> >>> >
> >>> >     Luis
> >>> >
> >>> >
> >>> > -------------------------------
> >>> > On Sat, Aug 28, 2010 at 11:04 AM, Kwame Kutten <kkutten1 at jhmi.edu>
> >>> > wrote:
> >>> >
> >>> > > I've written some new image extrapolators
> >>> > > (ConstantExtrapolateImageFunction
> >>> > > and PeriodicExtrapolateImageFunction) derived from the
> >>> > > ExtrapolateImageFunction class template.  They work with scaler
> >>> > images but
> >>> > > will not accept vector images because the base class was designed
> >>> > for scalar
> >>> > > images (
> >>> > >
> >>> > >
> >>> > > Is there a way to modify the ExtrapolateImageFunction to work 
> with
> >>> > > vector
> >>> > > images, or should I write a new vector-specific class (e.g.
> >>> > > ExtrapolateVectorImageFunction ) ?
> >>> > >
> >>> > > Thanks
> >>> > > _______________________________________________
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> >>
> >>
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> >>
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