Getting NiftyReg $image output as R matrix

[NHPatterson]

Hello, I have done some work transforming images using RNiftyReg and don't seem to find any documentation in getting a simple matrix of the niftyreg$image as an output after registration. I've worked around this by writing the R object using WriteNifti and reading it through oro.nifti and extracted the image matrix from from @.Data in the oro.nifti class, but I must be missing something! Is there not a simple way to do this directly from RNiftyReg?

Thanks,
Heath

[jonclayden]

Hi Heath. The image component of a niftyreg object is a matrix or array (albeit with class niftiImage). You shouldn't have to do anything.

[NHPatterson]

Thanks again, I figured it out, appreciate your work in bringing imaging analysis to R!

Heath