[Community] [Insight-users] Resampling: defining the output size at 'runtime' (Update-time) relative to the input size

[Mike Chinander]

Check out the following example:
http://www.itk.org/Wiki/ITK/Examples/ImageProcessing/ScaleTransform


On Wed, Oct 16, 2013 at 9:10 AM, Vaaksiainen <vaaksiainen at gmail.com> wrote:

> Hi folks,
>
> itk::ResampleImageFilter requires size being set before Update() so far
> that I've understood it.
>
> That being said, I'd wish to implement resize image filter (derivative for
> before mentioned) which samples the image based on scaling parameter
> relative to its input size e.g.
>
> newWidth = scaling * oldWidth
>
> which I figure out at GenerateData() and yet, I'd wish to be able to put
> this filter in the pipeline not knowing the size of the input image, e.g.
>
> Reader -> Filter#1 -> ResampleImageFilterEx -> Filter#2 -> Writer
>
> How PropagateRequestedRegion() works and how its implemented in
> itk::ResampleImageFilter I'm not sure if I can do this at all.
>
> Please, any advice?
>
> Best,
> -Vaaksiainen
>
>
>
>
>
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