NIFTI_1_HEADER Struct Reference

#include <libtpcimgio.h>

Data Fields
int	sizeof_hdr
char	data_type [10]
char	db_name [18]
int	extents
short int	session_error
char	regular
char	dim_info
short int	dim [8]
float	intent_p1
float	intent_p2
float	intent_p3
short int	intent_code
short int	datatype
short int	bitpix
short int	slice_start
float	pixdim [8]
float	vox_offset
float	scl_slope
float	scl_inter
short int	slice_end
char	slice_code
char	xyzt_units
float	cal_max
float	cal_min
float	slice_duration
float	toffset
int	glmax
int	glmin
char	descrip [80]
char	aux_file [24]
short int	qform_code
short int	sform_code
float	quatern_b
float	quatern_c
float	quatern_d
float	qoffset_x
float	qoffset_y
float	qoffset_z
float	srow_x [4]
float	srow_y [4]
float	srow_z [4]
char	intent_name [16]
char	magic [4]

Detailed Description

Nifti-1 header, 348 bytes

Definition at line 2157 of file libtpcimgio.h.

Field Documentation

aux_file

char NIFTI_1_HEADER::aux_file[24]

Auxiliary file name (byte offset 228)

Definition at line 2221 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

bitpix

short int NIFTI_1_HEADER::bitpix

Nr of bits per voxel (byte offset 72)

Definition at line 2188 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), niftiReadImagedata(), and niftiWriteHeader().

cal_max

float NIFTI_1_HEADER::cal_max

Max display intensity (byte offset 124)

Definition at line 2206 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

cal_min

float NIFTI_1_HEADER::cal_min

Min display intensity (byte offset 128)

Definition at line 2208 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

data_type

char NIFTI_1_HEADER::data_type[10]

Unused. Needed for compatibility with Analyze (byte offset 4)

Definition at line 2161 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

datatype

short int NIFTI_1_HEADER::datatype

Data type (byte offset 70)

Definition at line 2186 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), niftiReadImagedata(), and niftiWriteHeader().

db_name

char NIFTI_1_HEADER::db_name[18]

Unused. Needed for compatibility with Analyze (byte offset 14)

Definition at line 2163 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

descrip

char NIFTI_1_HEADER::descrip[80]

Free text field for study description (byte offset 148)

Definition at line 2219 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

dim

short int NIFTI_1_HEADER::dim[8]

Data array dimensions; dim[0] is for the nr of dimensions, 1,2,3 are for space, 4 is for time, 5 is for storing multiple values at each spatiotemporal voxel. (byte offset 40)

Definition at line 2176 of file libtpcimgio.h.

Referenced by imgGetNiftiHeader(), imgSetNiftiHeader(), imgWriteNiftiFrame(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), niftiReadImagedata(), and niftiWriteHeader().

dim_info

char NIFTI_1_HEADER::dim_info

MRI slice ordering, encoding directions(phase, frequency, slice). (byte offset 39)

Definition at line 2171 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

extents

int NIFTI_1_HEADER::extents

Unused. Value 16384 needed for compatibility with Analyze (byte offset 32)

Definition at line 2165 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

glmax

int NIFTI_1_HEADER::glmax

Unused. Needed for compatibility with Analyze. (byte offset 140)

Definition at line 2214 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

glmin

int NIFTI_1_HEADER::glmin

Unused. Needed for compatibility with Analyze. (byte offset 144)

Definition at line 2216 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

intent_code

short int NIFTI_1_HEADER::intent_code

NIFTI_INTENT_* (byte offset 68).

Definition at line 2184 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

intent_name

char NIFTI_1_HEADER::intent_name[16]

Name or Meaning of data (Offset 0) (byte offset 328)

Definition at line 2246 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

intent_p1

float NIFTI_1_HEADER::intent_p1

1st intent parameter, dependent on intent_code (byte offset 56)

Definition at line 2178 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

intent_p2

float NIFTI_1_HEADER::intent_p2

2nd intent parameter, dependent on intent_code (byte offset 60)

Definition at line 2180 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

intent_p3

float NIFTI_1_HEADER::intent_p3

3rd intent parameter, dependent on intent_code (byte offset 64)

Definition at line 2182 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

magic

char NIFTI_1_HEADER::magic[4]

Magic string, "ni1\0" (dual file) or "n+1\0" (single file) (byte offset 344). If zero, file should be treated as Analyze.

Definition at line 2250 of file libtpcimgio.h.

Referenced by imgGetNiftiHeader(), imgSetNiftiHeader(), imgWriteNiftiFrame(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), niftiReadImagedata(), and niftiWriteHeader().

pixdim

float NIFTI_1_HEADER::pixdim[8]

Grid spacings starting from pixdim[1]; pixdim[0] contains orientation (byte offset 76)

Definition at line 2192 of file libtpcimgio.h.

Referenced by imgGetNiftiHeader(), imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

qform_code

short int NIFTI_1_HEADER::qform_code

Use the quaternion fields, NIFTI_XFORM_UNKNOWN, NIFTI_XFORM_SCANNER_ANAT, or NIFTI_XFORM_ALIGNED_ANAT. (byte offset 252)

Definition at line 2224 of file libtpcimgio.h.

Referenced by imgGetNiftiHeader(), imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

qoffset_x

float NIFTI_1_HEADER::qoffset_x

Quaternion x shift (byte offset 268)

Definition at line 2234 of file libtpcimgio.h.

Referenced by imgGetNiftiHeader(), imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

qoffset_y

float NIFTI_1_HEADER::qoffset_y

Quaternion y shift (byte offset 272)

Definition at line 2236 of file libtpcimgio.h.

Referenced by imgGetNiftiHeader(), imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

qoffset_z

float NIFTI_1_HEADER::qoffset_z

Quaternion z shift (byte offset 276)

Definition at line 2238 of file libtpcimgio.h.

Referenced by imgGetNiftiHeader(), imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

quatern_b

float NIFTI_1_HEADER::quatern_b

Quaternion b parameter (byte offset 256)

Definition at line 2228 of file libtpcimgio.h.

Referenced by imgGetNiftiHeader(), imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

quatern_c

float NIFTI_1_HEADER::quatern_c

Quaternion c parameter (byte offset 260)

Definition at line 2230 of file libtpcimgio.h.

Referenced by imgGetNiftiHeader(), imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

quatern_d

float NIFTI_1_HEADER::quatern_d

Quaternion d parameter (byte offset 264)

Definition at line 2232 of file libtpcimgio.h.

Referenced by imgGetNiftiHeader(), imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

regular

char NIFTI_1_HEADER::regular

Unused. Value 'r' needed for compatibility with Analyze (byte offset 38)

Definition at line 2169 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

scl_inter

float NIFTI_1_HEADER::scl_inter

Data scaling: offset (byte offset 116); pixel values should be scaled as scl_slope*x + scl_inter

Definition at line 2198 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), niftiReadImagedata(), and niftiWriteHeader().

scl_slope

float NIFTI_1_HEADER::scl_slope

Data scaling: slope (byte offset 112); pixel values should be scaled as scl_slope*x + scl_inter

Definition at line 2196 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), niftiReadImagedata(), and niftiWriteHeader().

session_error

short int NIFTI_1_HEADER::session_error

Unused. Needed for compatibility with Analyze (byte offset 36)

Definition at line 2167 of file libtpcimgio.h.

Referenced by niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

sform_code

short int NIFTI_1_HEADER::sform_code

Use of the affine fields, NIFTI_XFORM_* code (byte offset 254)

Definition at line 2226 of file libtpcimgio.h.

Referenced by imgGetNiftiHeader(), imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

sizeof_hdr

int NIFTI_1_HEADER::sizeof_hdr

Size of the header. Must be 348 for NIFTI-1, and 540 for NIFTI-2 (byte offset 0)

Definition at line 2159 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

slice_code

char NIFTI_1_HEADER::slice_code

Slice timing order (byte offset 122)

Definition at line 2202 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

slice_duration

float NIFTI_1_HEADER::slice_duration

Time for 1 slice (byte offset 132)

Definition at line 2210 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

slice_end

short int NIFTI_1_HEADER::slice_end

Last slice index (byte offset 120)

Definition at line 2200 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

slice_start

short int NIFTI_1_HEADER::slice_start

First slice index (byte offset 74)

Definition at line 2190 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

srow_x

float NIFTI_1_HEADER::srow_x[4]

1st row affine transformation (byte offset 280)

Definition at line 2240 of file libtpcimgio.h.

Referenced by imgGetNiftiHeader(), imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

srow_y

float NIFTI_1_HEADER::srow_y[4]

2nd row affine transformation (byte offset 296)

Definition at line 2242 of file libtpcimgio.h.

Referenced by imgGetNiftiHeader(), imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

srow_z

float NIFTI_1_HEADER::srow_z[4]

3rd row affine transformation (byte offset 312)

Definition at line 2244 of file libtpcimgio.h.

Referenced by imgGetNiftiHeader(), imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

toffset

float NIFTI_1_HEADER::toffset

Time axis shift (byte offset 136)

Definition at line 2212 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

vox_offset

float NIFTI_1_HEADER::vox_offset

Offset into .nii file (byte offset 108)

Definition at line 2194 of file libtpcimgio.h.

Referenced by imgSetNiftiHeader(), imgWriteNiftiFrame(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), niftiReadImagedata(), and niftiWriteHeader().

xyzt_units

char NIFTI_1_HEADER::xyzt_units

Units of pixdim[1..4], combination of NIFTI_UNITS_* (byte offset 123).

Definition at line 2204 of file libtpcimgio.h.

Referenced by imgGetNiftiHeader(), imgSetNiftiHeader(), niftiHeaderFromIFT(), niftiHeaderToIFT(), niftiPrintHeader(), niftiReadHeader(), and niftiWriteHeader().

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The documentation for this struct was generated from the following file:

• libtpcimgio/libtpcimgio.h