Is there any implementation of the N3 MRI bias correction in Matlab?

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Lu Zhao

I think Najmeh is correct, most of the tools in CIVET are not available in matlab. If you only want intensity nonuniformity correction in Windows system, using the Bias Field Corrector in BrainSuite is an alternative.

Simon Fristed Eskildsen

N3 is part of minc tools and is implemented in C. There is also an extension called N4, which is implemented in ITK.

If you want a matlab implementation, SPM has a bias field correction algorithm. It's used in the tools "Segment" and "New Segment" and is based on priors in contrast to N3.

Sriramakrishnan Padmanaban

Slicer software have N4 bias correction field