NIfTI-1 header structure (348 bytes, packed).
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#include <libfs.h>
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int32_t | sizeof_hdr |
| | must be 348
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char | data_type [10] |
| | unused
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char | db_name [18] |
| | unused
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int32_t | extents |
| | unused
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int16_t | session_error |
| | unused
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char | regular |
| | unused
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char | dim_info |
| | MRI slice ordering.
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int16_t | dim [8] |
| | dim[0]=ndim, dim[1..7]=dimensions
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float | intent_p1 |
| | intent parameter 1
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float | intent_p2 |
| | intent parameter 2
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float | intent_p3 |
| | intent parameter 3
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int16_t | intent_code |
| | NIfTI intent code.
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int16_t | datatype |
| | NIfTI data type code.
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int16_t | bitpix |
| | bits per voxel
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int16_t | slice_start |
| | first slice index
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float | pixdim [8] |
| | voxel dimensions (mm)
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float | vox_offset |
| | byte offset to data from header start
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float | scl_slope |
| | scaling slope
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float | scl_inter |
| | scaling intercept
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int16_t | slice_end |
| | last slice index
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char | slice_code |
| | slice timing code
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char | xyzt_units |
| | units for pixdim[] dimensions
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float | cal_max |
| | calibrated max
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float | cal_min |
| | calibrated min
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float | slice_duration |
| | slice timing duration
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float | toffset |
| | time offset
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int32_t | glmax |
| | global max (unused)
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int32_t | glmin |
| | global min (unused)
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char | descrip [80] |
| | description
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char | aux_file [24] |
| | auxiliary filename
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int16_t | qform_code |
| | quaternion transform code (>0 = valid)
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int16_t | sform_code |
| | affine transform code (>0 = valid)
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float | quatern_b |
| | quaternion b param
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float | quatern_c |
| | quaternion c param
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float | quatern_d |
| | quaternion d param
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float | qoffset_x |
| | quaternion x shift
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float | qoffset_y |
| | quaternion y shift
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float | qoffset_z |
| | quaternion z shift
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float | srow_x [4] |
| | affine transform row x
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float | srow_y [4] |
| | affine transform row y
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float | srow_z [4] |
| | affine transform row z
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char | intent_name [16] |
| | intent name
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char | magic [4] |
| | "n+1\0" (single file) or "ni1\0" (header/img pair)
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NIfTI-1 header structure (348 bytes, packed).
The documentation for this struct was generated from the following file:
