Official definition of the nifti1 header. Written by Bob Cox, SSCC, NIMH. More...

This graph shows which files directly or indirectly include this file:

Classes
struct	nifti_1_header
	Data structure defining the fields in the nifti1 header. This binary header should be found at the beginning of a valid NIFTI-1 header file. More...

struct	nifti1_extender
	This structure represents a 4-byte string that should follow the binary nifti_1_header data in a NIFTI-1 header file. If the char values are {1,0,0,0}, the file is expected to contain extensions, values of {0,0,0,0} imply the file does not contain extensions. Other sequences of values are not currently defined. More...

struct	nifti1_extension
	Data structure defining the fields of a header extension. More...

Macros
#define	DT_NONE 0

#define	DT_UNKNOWN 0 /* what it says, dude */

#define	DT_BINARY 1 /* binary (1 bit/voxel) */

#define	DT_UNSIGNED_CHAR 2 /* unsigned char (8 bits/voxel) */

#define	DT_SIGNED_SHORT 4 /* signed short (16 bits/voxel) */

#define	DT_SIGNED_INT 8 /* signed int (32 bits/voxel) */

#define	DT_FLOAT 16 /* float (32 bits/voxel) */

#define	DT_COMPLEX 32 /* complex (64 bits/voxel) */

#define	DT_DOUBLE 64 /* double (64 bits/voxel) */

#define	DT_RGB 128 /* RGB triple (24 bits/voxel) */

#define	DT_ALL 255 /* not very useful (?) */

#define	DT_UINT8 2

#define	DT_INT16 4

#define	DT_INT32 8

#define	DT_FLOAT32 16

#define	DT_COMPLEX64 32

#define	DT_FLOAT64 64

#define	DT_RGB24 128

#define	DT_INT8 256 /* signed char (8 bits) */

#define	DT_UINT16 512 /* unsigned short (16 bits) */

#define	DT_UINT32 768 /* unsigned int (32 bits) */

#define	DT_INT64 1024 /* long long (64 bits) */

#define	DT_UINT64 1280 /* unsigned long long (64 bits) */

#define	DT_FLOAT128 1536 /* long double (128 bits) */

#define	DT_COMPLEX128 1792 /* double pair (128 bits) */

#define	DT_COMPLEX256 2048 /* long double pair (256 bits) */

#define	DT_RGBA32 2304 /* 4 byte RGBA (32 bits/voxel) */

#define	NIFTI_TYPE_UINT8 2

#define	NIFTI_TYPE_INT16 4

#define	NIFTI_TYPE_INT32 8

#define	NIFTI_TYPE_FLOAT32 16

#define	NIFTI_TYPE_COMPLEX64 32

#define	NIFTI_TYPE_FLOAT64 64

#define	NIFTI_TYPE_RGB24 128

#define	NIFTI_TYPE_INT8 256

#define	NIFTI_TYPE_UINT16 512

#define	NIFTI_TYPE_UINT32 768

#define	NIFTI_TYPE_INT64 1024

#define	NIFTI_TYPE_UINT64 1280

#define	NIFTI_TYPE_FLOAT128 1536

#define	NIFTI_TYPE_COMPLEX128 1792

#define	NIFTI_TYPE_COMPLEX256 2048

#define	NIFTI_TYPE_RGBA32 2304

#define	NIFTI_INTENT_NONE 0

#define	NIFTI_INTENT_CORREL 2

#define	NIFTI_INTENT_TTEST 3

#define	NIFTI_INTENT_FTEST 4

#define	NIFTI_INTENT_ZSCORE 5

#define	NIFTI_INTENT_CHISQ 6

#define	NIFTI_INTENT_BETA 7

#define	NIFTI_INTENT_BINOM 8

#define	NIFTI_INTENT_GAMMA 9

#define	NIFTI_INTENT_POISSON 10

#define	NIFTI_INTENT_NORMAL 11

#define	NIFTI_INTENT_FTEST_NONC 12

#define	NIFTI_INTENT_CHISQ_NONC 13

#define	NIFTI_INTENT_LOGISTIC 14

#define	NIFTI_INTENT_LAPLACE 15

#define	NIFTI_INTENT_UNIFORM 16

#define	NIFTI_INTENT_TTEST_NONC 17

#define	NIFTI_INTENT_WEIBULL 18

#define	NIFTI_INTENT_CHI 19

#define	NIFTI_INTENT_INVGAUSS 20

#define	NIFTI_INTENT_EXTVAL 21

#define	NIFTI_INTENT_PVAL 22

#define	NIFTI_INTENT_LOGPVAL 23

#define	NIFTI_INTENT_LOG10PVAL 24

#define	NIFTI_FIRST_STATCODE 2

#define	NIFTI_LAST_STATCODE 24

#define	NIFTI_INTENT_ESTIMATE 1001

#define	NIFTI_INTENT_LABEL 1002

#define	NIFTI_INTENT_NEURONAME 1003

#define	NIFTI_INTENT_GENMATRIX 1004

#define	NIFTI_INTENT_SYMMATRIX 1005

#define	NIFTI_INTENT_DISPVECT 1006 /* specifically for displacements */

#define	NIFTI_INTENT_VECTOR 1007 /* for any other type of vector */

#define	NIFTI_INTENT_POINTSET 1008

#define	NIFTI_INTENT_TRIANGLE 1009

#define	NIFTI_INTENT_QUATERNION 1010

#define	NIFTI_INTENT_DIMLESS 1011

#define	NIFTI_INTENT_TIME_SERIES 2001

#define	NIFTI_INTENT_NODE_INDEX 2002

#define	NIFTI_INTENT_RGB_VECTOR 2003

#define	NIFTI_INTENT_RGBA_VECTOR 2004

#define	NIFTI_INTENT_SHAPE 2005

#define	NIFTI_XFORM_UNKNOWN 0

#define	NIFTI_XFORM_SCANNER_ANAT 1

#define	NIFTI_XFORM_ALIGNED_ANAT 2

#define	NIFTI_XFORM_TALAIRACH 3

#define	NIFTI_XFORM_MNI_152 4

#define	NIFTI_UNITS_UNKNOWN 0

#define	NIFTI_UNITS_METER 1

#define	NIFTI_UNITS_MM 2

#define	NIFTI_UNITS_MICRON 3

#define	NIFTI_UNITS_SEC 8

#define	NIFTI_UNITS_MSEC 16

#define	NIFTI_UNITS_USEC 24

#define	NIFTI_UNITS_HZ 32

#define	NIFTI_UNITS_PPM 40

#define	NIFTI_UNITS_RADS 48

#define	XYZT_TO_SPACE(xyzt) ( (xyzt) & 0x07 )

#define	XYZT_TO_TIME(xyzt) ( (xyzt) & 0x38 )

#define	SPACE_TIME_TO_XYZT(ss, tt)

#define	DIM_INFO_TO_FREQ_DIM(di) ( ((di) ) & 0x03 )

#define	DIM_INFO_TO_PHASE_DIM(di) ( ((di) >> 2) & 0x03 )

#define	DIM_INFO_TO_SLICE_DIM(di) ( ((di) >> 4) & 0x03 )

#define	FPS_INTO_DIM_INFO(fd, pd, sd)

#define	NIFTI_SLICE_UNKNOWN 0

#define	NIFTI_SLICE_SEQ_INC 1

#define	NIFTI_SLICE_SEQ_DEC 2

#define	NIFTI_SLICE_ALT_INC 3

#define	NIFTI_SLICE_ALT_DEC 4

#define	NIFTI_SLICE_ALT_INC2 5 /* 05 May 2005: RWCox */

#define	NIFTI_SLICE_ALT_DEC2 6 /* 05 May 2005: RWCox */

#define	NIFTI_VERSION(h)

#define	NIFTI_ONEFILE(h) ( (h).magic[1] == '+' )

#define	NIFTI_NEEDS_SWAP(h) ( (h).dim[0] < 0 \|\| (h).dim[0] > 7 )

#define	NIFTI_5TH_DIM(h) ( ((h).dim[0]>4 && (h).dim[5]>1) ? (h).dim[5] : 0 )

Typedefs
typedef struct nifti_1_header	nifti_1_header

typedef struct nifti1_extender	nifti1_extender

typedef struct nifti1_extension	nifti1_extension

Detailed Description

Official definition of the nifti1 header. Written by Bob Cox, SSCC, NIMH.

HISTORY:

29 Nov 2007 [rickr]
   - added DT_RGBA32 and NIFTI_TYPE_RGBA32
   - added NIFTI_INTENT codes:
        TIME_SERIES, NODE_INDEX, RGB_VECTOR, RGBA_VECTOR, SHAPE

Macro Definition Documentation

◆ FPS_INTO_DIM_INFO

#define FPS_INTO_DIM_INFO	(	fd,
		pd,
		sd
	)

Value:

( ( ( ((char)(fd)) & 0x03)      ) |  \
                                      ( ( ((char)(pd)) & 0x03) << 2 ) |  \
                                      ( ( ((char)(sd)) & 0x03) << 4 )  )

◆ NIFTI_5TH_DIM

#define NIFTI_5TH_DIM ( h ) ( ((h).dim[0]>4 && (h).dim[5]>1) ? (h).dim[5] : 0 )

Check if a nifti_1_header struct contains a 5th (vector) dimension. Returns size of 5th dimension if > 1, returns 0 otherwise.

◆ NIFTI_INTENT_NONE

#define NIFTI_INTENT_NONE 0

default: no intention is indicated in the header.

◆ NIFTI_NEEDS_SWAP

#define NIFTI_NEEDS_SWAP ( h ) ( (h).dim[0] < 0 || (h).dim[0] > 7 )

Check if a nifti_1_header struct needs to be byte swapped. Returns 1 if it needs to be swapped, 0 if it does not.

◆ NIFTI_ONEFILE

#define NIFTI_ONEFILE ( h ) ( (h).magic[1] == '+' )

Check if a nifti_1_header struct says if the data is stored in the same file or in a separate file. Returns 1 if the data is in the same file as the header, 0 if it is not.

◆ NIFTI_VERSION

#define NIFTI_VERSION ( h )

Value:

( ( (h).magic[0]=='n' && (h).magic[3]=='\0'    &&     \
        ( (h).magic[1]=='i' || (h).magic[1]=='+' ) &&     \
        ( (h).magic[2]>='1' && (h).magic[2]<='9' )   )    \
      ? (h).magic[2]-'0' : 0 )

Given a nifti_1_header struct, check if it has a good magic number. Returns NIFTI version number (1..9) if magic is good, 0 if it is not.

◆ SPACE_TIME_TO_XYZT

#define SPACE_TIME_TO_XYZT	(	ss,
		tt
	)

Value:

( (((char)(ss)) & 0x07) \

| (((char)(tt)) & 0x38) )

Classes

Macros

Typedefs

Detailed Description

Macro Definition Documentation

◆ FPS_INTO_DIM_INFO

◆ NIFTI_5TH_DIM

◆ NIFTI_INTENT_NONE

◆ NIFTI_NEEDS_SWAP

◆ NIFTI_ONEFILE

◆ NIFTI_VERSION

◆ SPACE_TIME_TO_XYZT