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00001 #ifndef _NIFTI_HEADER_ 00002 #define _NIFTI_HEADER_ 00003 00004 /***************************************************************************** 00005 ** This file defines the "NIFTI-1" header format. ** 00006 ** It is derived from 2 meetings at the NIH (31 Mar 2003 and ** 00007 ** 02 Sep 2003) of the Data Format Working Group (DFWG), ** 00008 ** chartered by the NIfTI (Neuroimaging Informatics Technology ** 00009 ** Initiative) at the National Institutes of Health (NIH). ** 00010 **--------------------------------------------------------------** 00011 ** Neither the National Institutes of Health (NIH), the DFWG, ** 00012 ** nor any of the members or employees of these institutions ** 00013 ** imply any warranty of usefulness of this material for any ** 00014 ** purpose, and do not assume any liability for damages, ** 00015 ** incidental or otherwise, caused by any use of this document. ** 00016 ** If these conditions are not acceptable, do not use this! ** 00017 **--------------------------------------------------------------** 00018 ** Author: Robert W Cox (NIMH, Bethesda) ** 00019 ** Advisors: John Ashburner (FIL, London), ** 00020 ** Stephen Smith (FMRIB, Oxford), ** 00021 ** Mark Jenkinson (FMRIB, Oxford) ** 00022 ******************************************************************************/ 00023 00024 /*=================*/ 00025 #ifdef __cplusplus 00026 extern "C" { 00027 #endif 00028 /*=================*/ 00029 00035 /*************************/ /************/ 00036 struct nifti_1_header { /* NIFTI-1 usage */ /* offset */ 00037 /*************************/ /************/ 00038 00039 int sizeof_hdr; /* 0 */ 00040 char data_type[10]; /* 4 */ 00041 char db_name[18]; /* 14 */ 00042 int extents; /* 32 */ 00043 short session_error; /* 36 */ 00044 char regular; /* 38 */ 00045 char dim_info; /* 39 */ 00046 short dim[8]; /* 40 */ 00047 float intent_p1; /* 56 */ 00048 float intent_p2; /* 60 */ 00049 float intent_p3; /* 64 */ 00050 short intent_code; /* 68 */ 00051 short datatype; /* 70 */ 00052 short bitpix; /* 72 */ 00053 short slice_start; /* 74 */ 00054 float pixdim[8]; /* 76 */ 00055 float vox_offset; /* 108 */ 00056 float scl_slope; /* 112 */ 00057 float scl_inter; /* 116 */ 00058 short slice_end; /* 120 */ 00059 char slice_code; /* 122 */ 00060 char xyzt_units; /* 123 */ 00061 float cal_max; /* 124 */ 00062 float cal_min; /* 128 */ 00063 float slice_duration; /* 132 */ 00064 float toffset; /* 136 */ 00065 int glmax; /* 140 */ 00066 int glmin; /* 144 */ 00067 char descrip[80]; /* 148 */ 00068 char aux_file[24]; /* 228 */ 00069 short qform_code; /* 252 */ 00070 short sform_code; /* 254 */ 00071 float quatern_b; /* 256 */ 00072 float quatern_c; /* 260 */ 00073 float quatern_d; /* 264 */ 00074 float qoffset_x; /* 268 */ 00075 float qoffset_y; /* 272 */ 00076 float qoffset_z; /* 276 */ 00077 float srow_x[4]; /* 280 */ 00078 float srow_y[4]; /* 296 */ 00079 float srow_z[4]; /* 312 */ 00080 char intent_name[16]; /* 328 */ 00081 char magic[4]; /* 344 */ 00082 00083 }; /**** 348 bytes total ****/ 00084 00085 typedef struct nifti_1_header nifti_1_header; 00086 00087 /*---------------------------------------------------------------------------*/ 00088 /* TYPE OF DATA (acceptable values for datatype field): 00089 --------------------------------------------------- 00090 Values of datatype smaller than 256 are ANALYZE 7.5 compatible. 00091 Larger values are NIFTI-1 additions. These are all multiples of 256, so 00092 that no bits below position 8 are set in datatype. But there is no need 00093 to use only powers-of-2, as the original ANALYZE 7.5 datatype codes do. 00094 00095 The additional codes are intended to include a complete list of basic 00096 scalar types, including signed and unsigned integers from 8 to 64 bits, 00097 floats from 32 to 128 bits, and complex (float pairs) from 64 to 256 bits. 00098 00099 Note that most programs will support only a few of these datatypes! 00100 A NIFTI-1 program should fail gracefully (e.g., print a warning message) 00101 when it encounters a dataset with a type it doesn't like. 00102 -----------------------------------------------------------------------------*/ 00103 00109 #define NIFTI_TYPE_UINT8 2 00110 00111 #define NIFTI_TYPE_INT16 4 00112 00113 #define NIFTI_TYPE_INT32 8 00114 00115 #define NIFTI_TYPE_FLOAT32 16 00116 00117 #define NIFTI_TYPE_COMPLEX64 32 00118 00119 #define NIFTI_TYPE_FLOAT64 64 00120 00121 #define NIFTI_TYPE_RGB24 128 00122 00123 #define NIFTI_TYPE_INT8 256 00124 00125 #define NIFTI_TYPE_UINT16 512 00126 00127 #define NIFTI_TYPE_UINT32 768 00128 00129 #define NIFTI_TYPE_INT64 1024 00130 00131 #define NIFTI_TYPE_UINT64 1280 00132 00133 #define NIFTI_TYPE_FLOAT128 1536 00134 00135 #define NIFTI_TYPE_COMPLEX128 1792 00136 00137 #define NIFTI_TYPE_COMPLEX256 2048 00138 00139 #define NIFTI_TYPE_RGBA32 2304 00140 /* @} */ 00141 00142 00143 /*---------------------------------------------------------------------------*/ 00144 /* MISCELLANEOUS C MACROS 00145 -----------------------------------------------------------------------------*/ 00146 00147 /*.................*/ 00151 #define NIFTI_VERSION(h) \ 00152 ( ( (h).magic[0]=='n' && (h).magic[3]=='\0' && \ 00153 ( (h).magic[1]=='i' || (h).magic[1]=='+' ) && \ 00154 ( (h).magic[2]>='1' && (h).magic[2]<='9' ) ) \ 00155 ? (h).magic[2]-'0' : 0 ) 00156 00157 /*.................*/ 00162 #define NIFTI_ONEFILE(h) ( (h).magic[1] == '+' ) 00163 00164 /*.................*/ 00168 #define NIFTI_NEEDS_SWAP(h) ( (h).dim[0] < 0 || (h).dim[0] > 7 ) 00169 00170 00171 /*=================*/ 00172 #ifdef __cplusplus 00173 } 00174 #endif 00175 /*=================*/ 00176 00177 #endif /* _NIFTI_HEADER_ */ 00178 00179 #ifndef __NIFTI2_HEADER 00180 #define __NIFTI2_HEADER 00181 00182 /*---------------------------------------------------------------------------*/ 00183 /* Changes to the header from NIFTI-1 to NIFTI-2 are intended to allow for 00184 larger and more accurate fields. The changes are as follows: 00185 00186 - short dim[8] -> int64_t dim[8] 00187 - float intent_p1,2,3 -> double intent_p1,2,3 (3 fields) 00188 - float pixdim[8] -> double pixdim[8] 00189 - float vox_offset -> int64_t vox_offset 00190 - float scl_slope -> double scl_slope 00191 - float scl_inter -> double scl_inter 00192 - float cal_max -> double cal_max 00193 - float cal_min -> double cal_min 00194 - float slice_duration -> double slice_duration 00195 - float toffset -> double toffset 00196 - short slice_start -> int64_t slice_start 00197 - short slice_end -> int64_t slice_end 00198 - char slice_code -> int32_t slice_code 00199 - char xyzt_units -> int32_t xyzt_units 00200 - short intent_code -> int32_t intent_code 00201 - short qform_code -> int32_t qform_code 00202 - short sform_code -> int32_t sform_code 00203 - float quatern_b,c,d -> double quatern_b,c,d (3 fields) 00204 - float srow_x,y,z[4] -> double srow_x,y,z[4] (3 fields) 00205 - char magic[4] -> char magic[8] 00206 - char unused_str[15] -> padding added at the end of the header 00207 00208 - previously unused fields have been removed: 00209 data_type, db_name, extents, session_error, regular, glmax, glmin 00210 00211 - the field ordering has been changed 00212 -----------------------------------------------------------------------------*/ 00213 00214 /*=================*/ 00215 #ifdef __cplusplus 00216 extern "C" { 00217 #endif 00218 /*=================*/ 00219 00226 /*************************/ /************/ 00227 struct nifti_2_header { /* NIFTI-2 usage */ /* offset */ 00228 /*************************/ /************/ 00229 int sizeof_hdr; /* 0 */ 00230 char magic[8]; /* 4 */ 00231 short datatype; /* 12 */ 00232 short bitpix; /* 14 */ 00233 long long dim[8]; /* 16 */ 00234 double intent_p1; /* 80 */ 00235 double intent_p2; /* 88 */ 00236 double intent_p3; /* 96 */ 00237 double pixdim[8]; /* 104 */ 00238 long long vox_offset; /* 168 */ 00239 double scl_slope; /* 176 */ 00240 double scl_inter; /* 184 */ 00241 double cal_max; /* 192 */ 00242 double cal_min; /* 200 */ 00243 double slice_duration; /* 208 */ 00244 double toffset; /* 216 */ 00245 long long slice_start; /* 224 */ 00246 long long slice_end; /* 232 */ 00247 char descrip[80]; /* 240 */ 00248 char aux_file[24]; /* 320 */ 00249 int qform_code; /* 344 */ 00250 int sform_code; /* 348 */ 00251 double quatern_b; /* 352 */ 00252 double quatern_c; /* 360 */ 00253 double quatern_d; /* 368 */ 00254 double qoffset_x; /* 376 */ 00255 double qoffset_y; /* 384 */ 00256 double qoffset_z; /* 392 */ 00257 double srow_x[4]; /* 400 */ 00258 double srow_y[4]; /* 432 */ 00259 double srow_z[4]; /* 464 */ 00260 int slice_code; /* 496 */ 00261 int xyzt_units; /* 500 */ 00262 int intent_code; /* 504 */ 00263 char intent_name[16]; /* 508 */ 00264 char dim_info; /* 524 */ 00265 char unused_str[15]; /* 525 */ 00266 }; /**** 540 bytes total ****/ 00267 00268 typedef struct nifti_2_header nifti_2_header; 00269 00270 /*=================*/ 00271 #ifdef __cplusplus 00272 } 00273 #endif 00274 /*=================*/ 00275 00276 #endif /* __NIFTI2_HEADER */ 00277 // VTK-HeaderTest-Exclude: vtkNIFTIImagePrivate.h
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