203 lines
5 KiB
Text
203 lines
5 KiB
Text
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#------------------------------------------------------------------------------
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# $File: nifty,v 1.1 2022/02/14 16:51:15 christos Exp $
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# file(1) magic for the NIfTI file format
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# Type: NIfTI, Neuroimaging file format
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# URL: https://nifti.nimh.nih.gov/
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# From: Yann Leprince <yann.leprince@cea.fr>, 2022
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344 string n+1\0 NIfTI-1 neuroimaging data,
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!:mime image/x.nifti
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!:ext nii
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>0 use nifti1
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344 string ni1\0 NIfTI-1 neuroimaging data header,
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!:mime image/x.nifti
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!:ext hdr
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>0 use nifti1
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4 string n+2\0\r\n\032\n NIfTI-2 neuroimaging data,
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!:mime image/x.nifti
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!:ext nii
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>0 use nifti2
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4 string ni2\0\r\n\032\n NIfTI-2 neuroimaging data header,
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!:mime image/x.nifti
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!:ext hdr
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>0 use nifti2
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# Main subroutine for NIfTI-1
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0 name nifti1
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>0 clear x
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>0 lelong =348 little endian
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>>70 use nifti-datatype-le
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>>112 lefloat !0 with scaling
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>>0 use nifti1-dim-le
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>>252 leshort >0 \b, with qform
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>>>252 use xform-code-nifti1-le
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>>254 leshort >0 \b, with sform
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>>>254 use xform-code-nifti1-le
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>>136 string >\0 \b, description: %s
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>0 belong =348 big endian
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>>70 use \^nifti-datatype-le
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>>112 befloat !0 with scaling
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>>0 use \^nifti1-dim-le
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>>252 beshort >0 \b, with qform
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>>>252 use \^xform-code-nifti1-le
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>>254 beshort >0 \b, with sform
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>>>254 use \^xform-code-nifti1-le
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>>136 string >\0 \b, description: %s
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>0 default x
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>>0 long x invalid sizeof_hdr=%d
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# Main subroutine for NIfTI-2
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0 name nifti2
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>0 clear x
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>0 lelong =540 little endian
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>>12 use nifti-datatype-le
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>>176 lefloat !0 with scaling
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>>0 use nifti2-dim-le
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>>344 lelong >0 \b, with qform
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>>>344 use xform-code-nifti2-le
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>>348 lelong >0 \b, with sform
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>>>348 use xform-code-nifti2-le
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>>240 string >\0 \b, description: %s
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>0 belong =540 big endian
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>>12 use \^nifti-datatype-le
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>>176 befloat !0 with scaling
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>>0 use \^nifti2-dim-le
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>>344 lelong >0 \b, with qform
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>>>344 use \^xform-code-nifti2-le
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>>348 lelong >0 \b, with sform
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>>>348 use \^xform-code-nifti2-le
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>>240 string >\0 \b, description: %s
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>0 default x
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>>0 long x invalid sizeof_hdr=%d
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# Other subroutines for details of NIfTI files
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0 name nifti-datatype-le
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>0 clear x
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>0 leshort =1 \b, binary datatype
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>0 leshort =2 \b, uint8 datatype
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>0 leshort =4 \b, int16 datatype
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>0 leshort =8 \b, int32 datatype
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>0 leshort =16 \b, float32 datatype
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>0 leshort =32 \b, complex64 datatype
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>0 leshort =64 \b, float64 datatype
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>0 leshort =128 \b, RGB24 datatype
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>0 leshort =256 \b, int8 datatype
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>0 leshort =512 \b, uint16 datatype
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>0 leshort =768 \b, uint32 datatype
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>0 leshort =1024 \b, int64 datatype
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>0 leshort =1280 \b, uint64 datatype
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>0 leshort =1536 \b, float128 datatype
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>0 leshort =1792 \b, complex128 datatype
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>0 leshort =2048 \b, complex256 datatype
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>0 leshort =2304 \b, RGBA32 datatype
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>0 default x
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>>0 leshort x \b, unknown datatype 0x%x
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>>2 leshort x (%d bits/pixel)
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0 name nifti1-dim-le
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>0 clear x
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>40 leshort <0 \b, INVALID dim[0]=%d
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>40 leshort >7 \b, INVALID dim[0]=%d
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>0 default x
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>>40 leshort x \b, %d-dimensional (size
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>>42 leshort x %d
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>>40 leshort >1
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>>>44 leshort x \bx%d
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>>40 leshort >2
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>>>46 leshort x \bx%d
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>>40 leshort >3
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>>>48 leshort x \bx%d
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>>40 leshort >4
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>>>50 leshort x \bx%d
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>>40 leshort >5
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>>>52 leshort x \bx%d
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>>40 leshort >6
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>>>54 leshort x \bx%d
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>>80 lefloat x \b, voxel size %f
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>>40 leshort >1
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>>>84 lefloat x x %f
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>>40 leshort >2
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>>>88 lefloat x x %f
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>>123 use nifti1-xyz-unit
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>>40 leshort >3
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>>>92 lefloat x x %f
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>>>123 use nifti1-t-unit
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>>40 leshort x \b)
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0 name nifti2-dim-le
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>0 clear x
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>16 lequad <0 \b, INVALID dim[0]=%lld
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>16 lequad >7 \b, INVALID dim[0]=%lld
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>0 default x
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>>16 lequad x \b, %lld-dimensional (size
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>>24 lequad x %lld
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>>16 lequad >1
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>>>32 lequad x \bx%lld
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>>16 lequad >2
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>>>40 lequad x \bx%lld
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>>16 lequad >3
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>>>48 lequad x \bx%lld
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>>16 lequad >4
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>>>56 lequad x \bx%lld
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>>16 lequad >5
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>>>64 lequad x \bx%lld
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>>16 lequad >6
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>>>72 lequad x \bx%lld,
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>>112 ledouble x \b, voxel size %f
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>>16 lequad >1
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>>>120 ledouble x x %f
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>>16 lequad >2
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>>>128 ledouble x x %f
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>>500 use nifti2-xyz-unit
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>>16 lequad >3
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>>>136 ledouble x x %f
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>>>500 use nifti2-t-unit
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>>16 lequad x \b)
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0 name xform-code-nifti1-le
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>0 leshort =1 to scanner-based coordinates
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>0 leshort =2 to aligned coordinates
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>0 leshort =3 to Talairach coordinates
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>0 leshort =4 to MNI152 coordinates
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>0 leshort =5 to template coordinates
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0 name xform-code-nifti2-le
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>0 lelong =1 to scanner-based coordinates
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>0 lelong =2 to aligned coordinates
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>0 lelong =3 to Talairach coordinates
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>0 lelong =4 to MNI152 coordinates
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>0 lelong =5 to template coordinates
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0 name nifti1-xyz-unit
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>0 byte &0x01
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>>0 byte ^0x02 m
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>>0 byte &0x02 micron
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>0 byte ^0x01
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>>0 byte &0x02 mm
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0 name nifti1-t-unit
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>0 byte &0x08
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>>0 byte ^0x10 s
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>>0 byte &0x10 ms
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>0 byte ^0x08
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>>0 byte &0x10 microsecond
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0 name nifti2-xyz-unit
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>0 lelong &0x01
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>>0 lelong ^0x02 m
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>>0 lelong &0x02 micron
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>0 lelong ^0x01
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>>0 lelong &0x02 mm
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0 name nifti2-t-unit
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>0 lelong &0x08
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>>0 lelong ^0x10 s
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>>0 lelong &0x10 ms
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>0 lelong ^0x08
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>>0 lelong &0x10 microsecond
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