[Insight-users] Composite filter

[Cory Quammen]

Hi Baldmonkeey,

I would suggest looking at the implementation of
itk::ConvolutionImageFilter and itk::ConvolutionImageFilterBase for
which methods you should override. In fact, you could almost use the
itk::ConvolutionImageFilter as is, but there is unfortunately no
mirror pad boundary condition type. If you wanted to contribute a
mirror pad boundary condition class, subclassed from
itk::ImageBoundaryCondition, to ITK, it would be more than welcome :-)

Hope that helps,
Cory


On Mon, May 28, 2012 at 1:03 AM, bala <baldmonkeey at gmail.com> wrote:
> Hi,
> I am trying to implement a simple convolution filter with symmetric padding.
> My composite filter contains a Mirror padding filter followed by a
> convolution filter which is then followed by a RegionofInterest filter ( for
> cropping the central portion); What methods from  (such as
> GenerateInputRequested region,
> GenerateOutputInformation,EnlargeInputRequested Region) do I have to
> re-implement? Do I have to explicitly pass the negative indices produced by
> the mirrorpadding filter to the subsequent filter.
> thanks in advance!
> ~p
>
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-- 
Cory Quammen
Research Associate
Department of Computer Science
The University of North Carolina at Chapel Hill