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Re: Size limitations in NIfTI

Author: Cinly OOI (---.cmbg.cable.ntl.com)
Date: 01-28-09 22:23

Presumably you mean dim[1..N] limitation to 32000+ is not good enough for you and you really need dim[n]=1000000.

Short answer is not in one file. NifTI is created for image data and it is extremely unlikely that any dimension [n=1 to 4] can go up to 32000 any time soon.

Break the vector down to logical chunk and store the 1 million as a logical combo of dim[1], dim[2] etc; Store logical chunk in separate files or
perhaps
(1)Look at the way Nifti handles vector in nifti1.h description and come out with a similar way, e.g. intent_code=MY_CODE that indicates your dim[X] is dim[6] and dim[7] read as integer or
(2)Use nifti extension to hold the size you want.

What type of data are you talking about which need dim[n]=1000000? If you can demonstrate a need I am sure the NifTI committee will take this into account in their next revision. But please don't waste our time with theoritical question.

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