[Insight-developers] RecursiveMultiResolutionPyramidImageFilter

[sgerber]

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