[Insight-developers] RecursiveMultiResolutionPyramidImageFilter

[Matt McCormick]

Hi Sam,

Except for certain situations, resampling an image will result in an
apparent shift in piecewise constant boundaries.

Thanks,
Matt

On Wed, Jul 17, 2013 at 3:15 PM, sgerber <sgerber at cs.utah.edu> wrote:
> Hi
>
> RecursiveMultiResolutionPyramidImageFilter behaves significantly different
> when using UseShrinkImageFilterOff() vs. UseShrinkImageFilterOn(). The
> default, UseShrinkImageFilterOn(), uses for subsampling a single pixel ("top
> right" corner) which results, for piecewise constant images, in image
> gradients being shifted in physical space. Is this intended? It's not the
> behaviour I expected when I used this filter. It is also not documented in
> the PyramidFilter documentation or the ShrinkImageFilter that this is the
> subsampling method used.
>
> Thanks
> Sam
> _______________________________________________
> 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