[Insight-users] What is the *correct* way to downsample an image with ITK?

[Joel Schaerer]

Hi Dan,

Thanks for your answer. I've already looked at that paper, but it only
considers the choice of the interpolation function. My understanding is that
for image downsampling, regardless of the interpolation function you use,
you have to apply a low-pass filter to the image prior to resampling in
order to avoid aliasing effects. My question is about this low-pass
filtering step, not the interpolation function.



Dan Mueller-2 wrote:
> 
> Hi Joel,
> 
> You may be interested in the following paper:
> 
> http://www.imagescience.org/meijering/publications/download/miccai1999.pdf
> @inproceedings{Meijering1999a,
>    Author = {E. Meijering and W. Niessen and J. Pluim and M. Viergever},
>    Title = {Quantitative Comparison of Sinc-Approximating Kernels for
> Medical Image Interpolation},
>    Booktitle = {Proceedings of Medical Image Computing and
> Computer-Assisted Intervention (MICCAI)},
>    Page = {210--217},
>    Publisher = {Springer},
>    Volume = {1679},
>    Year = {1999}
> }
> 
> 
> 

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