1 /*=========================================================================
4 Module: $RCSfile: gdcmFile.cxx,v $
6 Date: $Date: 2005/06/02 14:20:14 $
7 Version: $Revision: 1.240 $
9 Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
10 l'Image). All rights reserved. See Doc/License.txt or
11 http://www.creatis.insa-lyon.fr/Public/Gdcm/License.html for details.
13 This software is distributed WITHOUT ANY WARRANTY; without even
14 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 PURPOSE. See the above copyright notices for more information.
17 =========================================================================*/
20 // -------------- Remember ! ----------------------------------
22 // Image Position Patient (0020,0032):
23 // If not found (ACR_NEMA) we try Image Position (0020,0030)
24 // If not found (ACR-NEMA), we consider Slice Location (0020,1041)
25 // or Location (0020,0050)
26 // as the Z coordinate,
27 // 0. for all the coordinates if nothing is found
29 // ---------------------------------------------------------------
32 #include "gdcmGlobal.h"
34 #include "gdcmDebug.h"
36 #include "gdcmValEntry.h"
37 #include "gdcmBinEntry.h"
38 #include "gdcmSeqEntry.h"
39 #include "gdcmRLEFramesInfo.h"
40 #include "gdcmJPEGFragmentsInfo.h"
42 #include <stdio.h> //sscanf
47 //-----------------------------------------------------------------------------
48 // Constructor / Destructor
51 * \brief Constructor used when we want to generate dicom files from scratch
56 RLEInfo = new RLEFramesInfo;
57 JPEGInfo = new JPEGFragmentsInfo;
64 * @param filename name of the file whose header we want to analyze
66 File::File( std::string const &filename )
69 RLEInfo = new RLEFramesInfo;
70 JPEGInfo = new JPEGFragmentsInfo;
72 // for some ACR-NEMA images GrPixel, NumPixel is *not* 7fe0,0010
73 // We may encounter the 'RETired' (0x0028, 0x0200) tag
74 // (Image Location") . This entry contains the number of
75 // the group that contains the pixel data (hence the "Pixel Data"
76 // is found by indirection through the "Image Location").
77 // Inside the group pointed by "Image Location" the searched element
78 // is conventionally the element 0x0010 (when the norm is respected).
79 // When the "Image Location" is missing we default to group 0x7fe0.
80 // Note: this IS the right place for the code
83 const std::string &imgLocation = GetEntryValue(0x0028, 0x0200);
84 if ( imgLocation == GDCM_UNFOUND )
91 GrPixel = (uint16_t) atoi( imgLocation.c_str() );
94 // sometimes Image Location value doesn't follow
95 // the supposed processor endianness.
96 // see gdcmData/cr172241.dcm
97 if ( GrPixel == 0xe07f )
102 if ( GrPixel != 0x7fe0 )
104 // This is a kludge for old dirty Philips imager.
112 // Now, we know GrPixel and NumPixel.
113 // Let's create a VirtualDictEntry to allow a further VR modification
114 // and force VR to match with BitsAllocated.
115 DocEntry *entry = GetDocEntry(GrPixel, NumPixel);
118 // Compute the RLE or JPEG info
120 const std::string &ts = GetTransferSyntax();
121 Fp->seekg( entry->GetOffset(), std::ios::beg );
122 if ( Global::GetTS()->IsRLELossless(ts) )
124 else if ( Global::GetTS()->IsJPEG(ts) )
125 ComputeJPEGFragmentInfo();
128 // Create a new BinEntry to change the the DictEntry
129 // The changed DictEntry will have
130 // - a correct PixelVR OB or OW)
131 // - the name to "Pixel Data"
132 BinEntry *oldEntry = dynamic_cast<BinEntry *>(entry);
136 // 8 bits allocated is a 'O Bytes' , as well as 24 (old ACR-NEMA RGB)
137 // more than 8 (i.e 12, 16) is a 'O Words'
138 if ( GetBitsAllocated() == 8 || GetBitsAllocated() == 24 )
143 // Change only made if usefull
144 if( PixelVR != oldEntry->GetVR() )
146 DictEntry* newDict = NewVirtualDictEntry(GrPixel,NumPixel,
147 PixelVR,"1","Pixel Data");
149 BinEntry *newEntry = new BinEntry(newDict);
150 newEntry->Copy(entry);
151 newEntry->SetBinArea(oldEntry->GetBinArea(),oldEntry->IsSelfArea());
152 oldEntry->SetSelfArea(false);
154 RemoveEntry(oldEntry);
163 * \brief Canonical destructor.
173 //-----------------------------------------------------------------------------
178 * \brief This predicate, based on hopefully reasonable heuristics,
179 * decides whether or not the current File was properly parsed
180 * and contains the mandatory information for being considered as
181 * a well formed and usable Dicom/Acr File.
182 * @return true when File is the one of a reasonable Dicom/Acr file,
185 bool File::IsReadable()
187 if( !Document::IsReadable() )
192 const std::string &res = GetEntryValue(0x0028, 0x0005);
193 if ( res != GDCM_UNFOUND && atoi(res.c_str()) > 4 )
195 return false; // Image Dimensions
197 if ( !GetDocEntry(0x0028, 0x0100) )
199 return false; // "Bits Allocated"
201 if ( !GetDocEntry(0x0028, 0x0101) )
203 return false; // "Bits Stored"
205 if ( !GetDocEntry(0x0028, 0x0102) )
207 return false; // "High Bit"
209 if ( !GetDocEntry(0x0028, 0x0103) )
211 return false; // "Pixel Representation" i.e. 'Sign'
213 if ( !GetDocEntry(GrPixel, NumPixel) )
215 return false; // Pixel Dicom Element not found :-(
221 * \brief gets the info from 0020,0013 : Image Number else 0.
222 * @return image number
224 int File::GetImageNumber()
226 //0020 0013 : Image Number
227 std::string strImNumber = GetEntryValue(0x0020,0x0013);
228 if ( strImNumber != GDCM_UNFOUND )
230 return atoi( strImNumber.c_str() );
236 * \brief gets the info from 0008,0060 : Modality
237 * @return Modality Type
239 ModalityType File::GetModality()
241 // 0008 0060 : Modality
242 std::string strModality = GetEntryValue(0x0008,0x0060);
243 if ( strModality != GDCM_UNFOUND )
245 if ( strModality.find("AU") < strModality.length()) return AU;
246 else if ( strModality.find("AS") < strModality.length()) return AS;
247 else if ( strModality.find("BI") < strModality.length()) return BI;
248 else if ( strModality.find("CF") < strModality.length()) return CF;
249 else if ( strModality.find("CP") < strModality.length()) return CP;
250 else if ( strModality.find("CR") < strModality.length()) return CR;
251 else if ( strModality.find("CT") < strModality.length()) return CT;
252 else if ( strModality.find("CS") < strModality.length()) return CS;
253 else if ( strModality.find("DD") < strModality.length()) return DD;
254 else if ( strModality.find("DF") < strModality.length()) return DF;
255 else if ( strModality.find("DG") < strModality.length()) return DG;
256 else if ( strModality.find("DM") < strModality.length()) return DM;
257 else if ( strModality.find("DS") < strModality.length()) return DS;
258 else if ( strModality.find("DX") < strModality.length()) return DX;
259 else if ( strModality.find("ECG") < strModality.length()) return ECG;
260 else if ( strModality.find("EPS") < strModality.length()) return EPS;
261 else if ( strModality.find("FA") < strModality.length()) return FA;
262 else if ( strModality.find("FS") < strModality.length()) return FS;
263 else if ( strModality.find("HC") < strModality.length()) return HC;
264 else if ( strModality.find("HD") < strModality.length()) return HD;
265 else if ( strModality.find("LP") < strModality.length()) return LP;
266 else if ( strModality.find("LS") < strModality.length()) return LS;
267 else if ( strModality.find("MA") < strModality.length()) return MA;
268 else if ( strModality.find("MR") < strModality.length()) return MR;
269 else if ( strModality.find("NM") < strModality.length()) return NM;
270 else if ( strModality.find("OT") < strModality.length()) return OT;
271 else if ( strModality.find("PT") < strModality.length()) return PT;
272 else if ( strModality.find("RF") < strModality.length()) return RF;
273 else if ( strModality.find("RG") < strModality.length()) return RG;
274 else if ( strModality.find("RTDOSE")
275 < strModality.length()) return RTDOSE;
276 else if ( strModality.find("RTIMAGE")
277 < strModality.length()) return RTIMAGE;
278 else if ( strModality.find("RTPLAN")
279 < strModality.length()) return RTPLAN;
280 else if ( strModality.find("RTSTRUCT")
281 < strModality.length()) return RTSTRUCT;
282 else if ( strModality.find("SM") < strModality.length()) return SM;
283 else if ( strModality.find("ST") < strModality.length()) return ST;
284 else if ( strModality.find("TG") < strModality.length()) return TG;
285 else if ( strModality.find("US") < strModality.length()) return US;
286 else if ( strModality.find("VF") < strModality.length()) return VF;
287 else if ( strModality.find("XA") < strModality.length()) return XA;
288 else if ( strModality.find("XC") < strModality.length()) return XC;
292 /// \todo throw error return value ???
293 /// specified <> unknown in our database
302 * \brief Retrieve the number of columns of image.
303 * @return The encountered size when found, 0 by default.
304 * 0 means the file is NOT USABLE. The caller will have to check
308 const std::string &strSize = GetEntryValue(0x0028,0x0011);
309 if ( strSize == GDCM_UNFOUND )
314 return atoi( strSize.c_str() );
318 * \brief Retrieve the number of lines of image.
319 * \warning The defaulted value is 1 as opposed to File::GetXSize()
320 * @return The encountered size when found, 1 by default
321 * (The ACR-NEMA file contains a Signal, not an Image).
325 const std::string &strSize = GetEntryValue(0x0028,0x0010);
326 if ( strSize != GDCM_UNFOUND )
328 return atoi( strSize.c_str() );
335 // The Rows (0028,0010) entry was optional for ACR/NEMA. It might
336 // hence be a signal (1D image). So we default to 1:
341 * \brief Retrieve the number of planes of volume or the number
342 * of frames of a multiframe.
343 * \warning When present we consider the "Number of Frames" as the third
344 * dimension. When Missing we consider the third dimension as
345 * being the ACR-NEMA "Planes" tag content.
346 * @return The encountered size when found, 1 by default (single image).
350 // Both DicomV3 and ACR/Nema consider the "Number of Frames"
351 // as the third dimension.
352 const std::string &strSize = GetEntryValue(0x0028,0x0008);
353 if ( strSize != GDCM_UNFOUND )
355 return atoi( strSize.c_str() );
358 // We then consider the "Planes" entry as the third dimension
359 const std::string &strSize2 = GetEntryValue(0x0028,0x0012);
360 if ( strSize2 != GDCM_UNFOUND )
362 return atoi( strSize2.c_str() );
369 * \brief gets the info from 0028,0030 : Pixel Spacing
370 * (first in 0018,1164 : ImagerPixelSpacing)
372 * @return X dimension of a pixel
374 float File::GetXSpacing()
376 float xspacing = 1.0;
377 float yspacing = 1.0;
380 // To follow David Clunie's advice, we first check ImagerPixelSpacing
381 // (never saw any image with that field :-(
383 const std::string &strImagerPixelSpacing = GetEntryValue(0x0018,0x1164);
384 if( strImagerPixelSpacing != GDCM_UNFOUND )
386 if( ( nbValues = sscanf( strImagerPixelSpacing.c_str(),
387 "%f\\%f", &yspacing, &xspacing)) != 2 )
389 // if no values, xspacing is set to 1.0
392 // if single value is found, xspacing is defaulted to yspacing
396 if ( xspacing == 0.0 )
404 const std::string &strSpacing = GetEntryValue(0x0028,0x0030);
406 if( strSpacing == GDCM_UNFOUND )
408 gdcmWarningMacro( "Unfound Pixel Spacing (0028,0030)" );
412 if( ( nbValues = sscanf( strSpacing.c_str(),
413 "%f \\%f ", &yspacing, &xspacing)) != 2 )
415 // if no values, xspacing is set to 1.0
418 // if single value is found, xspacing is defaulted to yspacing
422 if ( xspacing == 0.0 )
429 // to avoid troubles with David Clunie's-like images
430 if ( xspacing == 0. && yspacing == 0.)
435 gdcmWarningMacro("gdcmData/CT-MONO2-8-abdo.dcm-like problem");
436 // seems to be a bug in the header ...
437 nbValues = sscanf( strSpacing.c_str(), "%f \\0\\%f ", &yspacing, &xspacing);
438 gdcmAssertMacro( nbValues == 2 );
445 * \brief gets the info from 0028,0030 : Pixel Spacing
446 * (first in 0018,1164 : ImagerPixelSpacing)
448 * @return Y dimension of a pixel
450 float File::GetYSpacing()
454 // To follow David Clunie's advice, we first check ImagerPixelSpacing
455 // (never saw any image with that field :-(
457 const std::string &strImagerPixelSpacing = GetEntryValue(0x0018,0x1164);
458 if( strImagerPixelSpacing != GDCM_UNFOUND )
460 nbValues = sscanf( strImagerPixelSpacing.c_str(), "%f", &yspacing);
462 // if sscanf cannot read any float value, it won't affect yspacing
466 if ( yspacing == 0.0 )
472 std::string strSpacing = GetEntryValue(0x0028,0x0030);
473 if ( strSpacing == GDCM_UNFOUND )
475 gdcmWarningMacro("Unfound Pixel Spacing (0028,0030)");
479 // if sscanf cannot read any float value, it won't affect yspacing
480 nbValues = sscanf( strSpacing.c_str(), "%f", &yspacing);
482 // if no values, yspacing is set to 1.0
486 if ( yspacing == 0.0 )
493 * \brief gets the info from 0018,0088 : Space Between Slices
494 * else from 0018,0050 : Slice Thickness
496 * @return Z dimension of a voxel-to be
498 float File::GetZSpacing()
500 // Spacing Between Slices : distance between the middle of 2 slices
502 // jointives (Spacing between Slices = Slice Thickness)
503 // overlapping (Spacing between Slices < Slice Thickness)
504 // disjointes (Spacing between Slices > Slice Thickness)
505 // Slice Thickness : epaisseur de tissus sur laquelle est acquis le signal
506 // It only concerns the MRI guys, not people wanting to visualize volmues
507 // If Spacing Between Slices is Missing,
508 // we suppose slices joint together
510 const std::string &strSpacingBSlices = GetEntryValue(0x0018,0x0088);
512 if ( strSpacingBSlices == GDCM_UNFOUND )
514 gdcmWarningMacro("Unfound Spacing Between Slices (0018,0088)");
515 const std::string &strSliceThickness = GetEntryValue(0x0018,0x0050);
516 if ( strSliceThickness == GDCM_UNFOUND )
518 gdcmWarningMacro("Unfound Slice Thickness (0018,0050)");
523 // if no 'Spacing Between Slices' is found,
524 // we assume slices join together
525 // (no overlapping, no interslice gap)
526 // if they don't, we're fucked up
527 return (float)atof( strSliceThickness.c_str() );
531 return (float)atof( strSpacingBSlices.c_str() );
535 * \brief gets the info from 0020,0032 : Image Position Patient
536 * else from 0020,0030 : Image Position (RET)
538 * @return up-left image corner X position
540 float File::GetXOrigin()
542 float xImPos, yImPos, zImPos;
543 std::string strImPos = GetEntryValue(0x0020,0x0032);
545 if ( strImPos == GDCM_UNFOUND )
547 gdcmWarningMacro( "Unfound Image Position Patient (0020,0032)");
548 strImPos = GetEntryValue(0x0020,0x0030); // For ACR-NEMA images
549 if ( strImPos == GDCM_UNFOUND )
551 gdcmWarningMacro( "Unfound Image Position (RET) (0020,0030)");
556 if( sscanf( strImPos.c_str(), "%f \\%f \\%f ", &xImPos, &yImPos, &zImPos) != 3 )
565 * \brief gets the info from 0020,0032 : Image Position Patient
566 * else from 0020,0030 : Image Position (RET)
568 * @return up-left image corner Y position
570 float File::GetYOrigin()
572 float xImPos, yImPos, zImPos;
573 std::string strImPos = GetEntryValue(0x0020,0x0032);
575 if ( strImPos == GDCM_UNFOUND)
577 gdcmWarningMacro( "Unfound Image Position Patient (0020,0032)");
578 strImPos = GetEntryValue(0x0020,0x0030); // For ACR-NEMA images
579 if ( strImPos == GDCM_UNFOUND )
581 gdcmWarningMacro( "Unfound Image Position (RET) (0020,0030)");
586 if( sscanf( strImPos.c_str(), "%f \\%f \\%f ", &xImPos, &yImPos, &zImPos) != 3 )
595 * \brief gets the info from 0020,0032 : Image Position Patient
596 * else from 0020,0030 : Image Position (RET)
597 * else from 0020,1041 : Slice Location
598 * else from 0020,0050 : Location
600 * @return up-left image corner Z position
602 float File::GetZOrigin()
604 float xImPos, yImPos, zImPos;
605 std::string strImPos = GetEntryValue(0x0020,0x0032);
607 if ( strImPos != GDCM_UNFOUND )
609 if( sscanf( strImPos.c_str(), "%f \\%f \\%f ", &xImPos, &yImPos, &zImPos) != 3)
611 gdcmWarningMacro( "Wrong Image Position Patient (0020,0032)");
612 return 0.; // bug in the element 0x0020,0x0032
620 strImPos = GetEntryValue(0x0020,0x0030); // For ACR-NEMA images
621 if ( strImPos != GDCM_UNFOUND )
623 if( sscanf( strImPos.c_str(),
624 "%f \\%f \\%f ", &xImPos, &yImPos, &zImPos ) != 3 )
626 gdcmWarningMacro( "Wrong Image Position (RET) (0020,0030)");
627 return 0.; // bug in the element 0x0020,0x0032
635 std::string strSliceLocation = GetEntryValue(0x0020,0x1041); // for *very* old ACR-NEMA images
636 if ( strSliceLocation != GDCM_UNFOUND )
638 if( sscanf( strSliceLocation.c_str(), "%f ", &zImPos) != 1)
640 gdcmWarningMacro( "Wrong Slice Location (0020,1041)");
641 return 0.; // bug in the element 0x0020,0x1041
648 gdcmWarningMacro( "Unfound Slice Location (0020,1041)");
650 std::string strLocation = GetEntryValue(0x0020,0x0050);
651 if ( strLocation != GDCM_UNFOUND )
653 if( sscanf( strLocation.c_str(), "%f ", &zImPos) != 1)
655 gdcmWarningMacro( "Wrong Location (0020,0050)");
656 return 0.; // bug in the element 0x0020,0x0050
663 gdcmWarningMacro( "Unfound Location (0020,0050)");
665 return 0.; // Hopeless
669 * \brief gets the info from 0020,0037 : Image Orientation Patient
670 * (needed to organize DICOM files based on their x,y,z position)
671 * @param iop adress of the (6)float aray to receive values
672 * @return cosines of image orientation patient
674 void File::GetImageOrientationPatient( float iop[6] )
676 std::string strImOriPat;
677 //iop is supposed to be float[6]
678 iop[0] = iop[1] = iop[2] = iop[3] = iop[4] = iop[5] = 0.;
680 // 0020 0037 DS REL Image Orientation (Patient)
681 if ( (strImOriPat = GetEntryValue(0x0020,0x0037)) != GDCM_UNFOUND )
683 if( sscanf( strImOriPat.c_str(), "%f \\ %f \\%f \\%f \\%f \\%f ",
684 &iop[0], &iop[1], &iop[2], &iop[3], &iop[4], &iop[5]) != 6 )
686 gdcmWarningMacro( "Wrong Image Orientation Patient (0020,0037). Less than 6 values were found." );
690 // 0020 0035 DS REL Image Orientation (RET)
691 else if ( (strImOriPat = GetEntryValue(0x0020,0x0035)) != GDCM_UNFOUND )
693 if( sscanf( strImOriPat.c_str(), "%f \\ %f \\%f \\%f \\%f \\%f ",
694 &iop[0], &iop[1], &iop[2], &iop[3], &iop[4], &iop[5]) != 6 )
696 gdcmWarningMacro( "wrong Image Orientation Patient (0020,0035). Less than 6 values were found." );
702 * \brief Retrieve the number of Bits Stored (actually used)
703 * (as opposed to number of Bits Allocated)
704 * @return The encountered number of Bits Stored, 0 by default.
705 * 0 means the file is NOT USABLE. The caller has to check it !
707 int File::GetBitsStored()
709 std::string strSize = GetEntryValue( 0x0028, 0x0101 );
710 if ( strSize == GDCM_UNFOUND )
712 gdcmWarningMacro("(0028,0101) is supposed to be mandatory");
713 return 0; // It's supposed to be mandatory
714 // the caller will have to check
716 return atoi( strSize.c_str() );
720 * \brief Retrieve the number of Bits Allocated
721 * (8, 12 -compacted ACR-NEMA files, 16, ...)
722 * @return The encountered number of Bits Allocated, 0 by default.
723 * 0 means the file is NOT USABLE. The caller has to check it !
725 int File::GetBitsAllocated()
727 std::string strSize = GetEntryValue(0x0028,0x0100);
728 if ( strSize == GDCM_UNFOUND )
730 gdcmWarningMacro( "(0028,0100) is supposed to be mandatory");
731 return 0; // It's supposed to be mandatory
732 // the caller will have to check
734 return atoi( strSize.c_str() );
738 * \brief Retrieve the high bit position.
739 * \warning The method defaults to 0 when information is Missing.
740 * The responsability of checking this value is left to the caller.
741 * @return The high bit positin when present. 0 when Missing.
743 int File::GetHighBitPosition()
745 std::string strSize = GetEntryValue( 0x0028, 0x0102 );
746 if ( strSize == GDCM_UNFOUND )
748 gdcmWarningMacro( "(0028,0102) is supposed to be mandatory");
751 return atoi( strSize.c_str() );
755 * \brief Retrieve the number of Samples Per Pixel
756 * (1 : gray level, 3 : RGB -1 or 3 Planes-)
757 * @return The encountered number of Samples Per Pixel, 1 by default.
758 * (Gray level Pixels)
760 int File::GetSamplesPerPixel()
762 const std::string &strSize = GetEntryValue(0x0028,0x0002);
763 if ( strSize == GDCM_UNFOUND )
765 gdcmWarningMacro( "(0028,0002) is supposed to be mandatory");
766 return 1; // Well, it's supposed to be mandatory ...
767 // but sometimes it's missing : *we* assume Gray pixels
769 return atoi( strSize.c_str() );
773 * \brief Retrieve the Planar Configuration for RGB images
774 * (0 : RGB Pixels , 1 : R Plane + G Plane + B Plane)
775 * @return The encountered Planar Configuration, 0 by default.
777 int File::GetPlanarConfiguration()
779 std::string strSize = GetEntryValue(0x0028,0x0006);
780 if ( strSize == GDCM_UNFOUND )
782 gdcmWarningMacro( "Not found : Planar Configuration (0028,0006)");
785 return atoi( strSize.c_str() );
789 * \brief Return the size (in bytes) of a single pixel of data.
790 * @return The size in bytes of a single pixel of data; 0 by default
791 * 0 means the file is NOT USABLE; the caller will have to check
793 int File::GetPixelSize()
795 // 0028 0100 US IMG Bits Allocated
796 // (in order no to be messed up by old RGB images)
797 // if (File::GetEntryValue(0x0028,0x0100) == "24")
800 std::string pixelType = GetPixelType();
801 if ( pixelType == "8U" || pixelType == "8S" )
805 if ( pixelType == "16U" || pixelType == "16S")
809 if ( pixelType == "32U" || pixelType == "32S")
813 if ( pixelType == "FD" )
817 gdcmWarningMacro( "Unknown pixel type");
822 * \brief Build the Pixel Type of the image.
823 * Possible values are:
824 * - 8U unsigned 8 bit,
826 * - 16U unsigned 16 bit,
827 * - 16S signed 16 bit,
828 * - 32U unsigned 32 bit,
829 * - 32S signed 32 bit,
830 * - FD floating double 64 bits (Not kosher DICOM, but so usefull!)
831 * \warning 12 bit images appear as 16 bit.
832 * 24 bit images appear as 8 bit + photochromatic interp ="RGB "
833 * @return 0S if nothing found. NOT USABLE file. The caller has to check
835 std::string File::GetPixelType()
837 std::string bitsAlloc = GetEntryValue(0x0028, 0x0100); // Bits Allocated
838 if ( bitsAlloc == GDCM_UNFOUND )
840 gdcmWarningMacro( "Missing Bits Allocated (0028,0100)");
841 bitsAlloc = "16"; // default and arbitrary value, not to polute the output
844 if ( bitsAlloc == "64" )
848 else if ( bitsAlloc == "12" )
850 // It will be unpacked
853 else if ( bitsAlloc == "24" )
855 // (in order no to be messed up
856 bitsAlloc = "8"; // by old RGB images)
859 std::string sign = GetEntryValue(0x0028, 0x0103);//"Pixel Representation"
861 if (sign == GDCM_UNFOUND )
863 gdcmWarningMacro( "Missing Pixel Representation (0028,0103)");
864 sign = "U"; // default and arbitrary value, not to polute the output
866 else if ( sign == "0" )
874 return bitsAlloc + sign;
878 * \brief Check whether the pixels are signed (1) or UNsigned (0) data.
879 * \warning The method defaults to false (UNsigned) when tag 0028|0103
881 * The responsability of checking this value is left to the caller.
882 * @return True when signed, false when UNsigned
884 bool File::IsSignedPixelData()
886 std::string strSign = GetEntryValue( 0x0028, 0x0103 );
887 if ( strSign == GDCM_UNFOUND )
889 gdcmWarningMacro( "(0028,0103) is supposed to be mandatory");
892 int sign = atoi( strSign.c_str() );
901 * \brief Check whether this a monochrome picture (gray levels) or not,
902 * using "Photometric Interpretation" tag (0x0028,0x0004).
903 * @return true when "MONOCHROME1" or "MONOCHROME2". False otherwise.
905 bool File::IsMonochrome()
907 const std::string &PhotometricInterp = GetEntryValue( 0x0028, 0x0004 );
908 if ( Util::DicomStringEqual(PhotometricInterp, "MONOCHROME1")
909 || Util::DicomStringEqual(PhotometricInterp, "MONOCHROME2") )
913 if ( PhotometricInterp == GDCM_UNFOUND )
915 gdcmWarningMacro( "Not found : Photometric Interpretation (0028,0004)");
921 * \brief Check whether this a MONOCHROME1 picture (high values = dark)
922 * or not using "Photometric Interpretation" tag (0x0028,0x0004).
923 * @return true when "MONOCHROME1" . False otherwise.
925 bool File::IsMonochrome1()
927 const std::string &PhotometricInterp = GetEntryValue( 0x0028, 0x0004 );
928 if ( Util::DicomStringEqual(PhotometricInterp, "MONOCHROME1") )
932 if ( PhotometricInterp == GDCM_UNFOUND )
934 gdcmWarningMacro( "Not found : Photometric Interpretation (0028,0004)");
940 * \brief Check whether this a "PALETTE COLOR" picture or not by accessing
941 * the "Photometric Interpretation" tag ( 0x0028, 0x0004 ).
942 * @return true when "PALETTE COLOR". False otherwise.
944 bool File::IsPaletteColor()
946 std::string PhotometricInterp = GetEntryValue( 0x0028, 0x0004 );
947 if ( PhotometricInterp == "PALETTE COLOR " )
951 if ( PhotometricInterp == GDCM_UNFOUND )
953 gdcmWarningMacro( "Not found : Palette color (0028,0004)");
959 * \brief Check whether this a "YBR_FULL" color picture or not by accessing
960 * the "Photometric Interpretation" tag ( 0x0028, 0x0004 ).
961 * @return true when "YBR_FULL". False otherwise.
963 bool File::IsYBRFull()
965 std::string PhotometricInterp = GetEntryValue( 0x0028, 0x0004 );
966 if ( PhotometricInterp == "YBR_FULL" )
970 if ( PhotometricInterp == GDCM_UNFOUND )
972 gdcmWarningMacro( "Not found : YBR Full (0028,0004)");
978 * \brief tells us if LUT are used
979 * \warning Right now, 'Segmented xxx Palette Color Lookup Table Data'
980 * are NOT considered as LUT, since nobody knows
981 * how to deal with them
982 * Please warn me if you know sbdy that *does* know ... jprx
983 * @return true if LUT Descriptors and LUT Tables were found
987 // Check the presence of the LUT Descriptors, and LUT Tables
989 if ( !GetDocEntry(0x0028,0x1101) )
993 // LutDescriptorGreen
994 if ( !GetDocEntry(0x0028,0x1102) )
999 if ( !GetDocEntry(0x0028,0x1103) )
1003 // Red Palette Color Lookup Table Data
1004 if ( !GetDocEntry(0x0028,0x1201) )
1008 // Green Palette Color Lookup Table Data
1009 if ( !GetDocEntry(0x0028,0x1202) )
1013 // Blue Palette Color Lookup Table Data
1014 if ( !GetDocEntry(0x0028,0x1203) )
1019 // FIXME : (0x0028,0x3006) : LUT Data (CTX dependent)
1020 // NOT taken into account, but we don't know how to use it ...
1025 * \brief gets the info from 0028,1101 : Lookup Table Desc-Red
1027 * @return Lookup Table number of Bits , 0 by default
1028 * when (0028,0004),Photometric Interpretation = [PALETTE COLOR ]
1029 * @ return bit number of each LUT item
1031 int File::GetLUTNbits()
1033 std::vector<std::string> tokens;
1036 //Just hope Lookup Table Desc-Red = Lookup Table Desc-Red
1037 // = Lookup Table Desc-Blue
1038 // Consistency already checked in GetLUTLength
1039 std::string lutDescription = GetEntryValue(0x0028,0x1101);
1040 if ( lutDescription == GDCM_UNFOUND )
1045 tokens.clear(); // clean any previous value
1046 Util::Tokenize ( lutDescription, tokens, "\\" );
1047 //LutLength=atoi(tokens[0].c_str());
1048 //LutDepth=atoi(tokens[1].c_str());
1050 lutNbits = atoi( tokens[2].c_str() );
1057 *\brief gets the info from 0028,1052 : Rescale Intercept
1058 * @return Rescale Intercept
1060 float File::GetRescaleIntercept()
1062 float resInter = 0.;
1063 /// 0028 1052 DS IMG Rescale Intercept
1064 const std::string &strRescInter = GetEntryValue(0x0028,0x1052);
1065 if ( strRescInter != GDCM_UNFOUND )
1067 if( sscanf( strRescInter.c_str(), "%f ", &resInter) != 1 )
1069 // bug in the element 0x0028,0x1052
1070 gdcmWarningMacro( "Rescale Intercept (0028,1052) is empty." );
1078 *\brief gets the info from 0028,1053 : Rescale Slope
1079 * @return Rescale Slope
1081 float File::GetRescaleSlope()
1083 float resSlope = 1.;
1084 //0028 1053 DS IMG Rescale Slope
1085 std::string strRescSlope = GetEntryValue(0x0028,0x1053);
1086 if ( strRescSlope != GDCM_UNFOUND )
1088 if( sscanf( strRescSlope.c_str(), "%f ", &resSlope) != 1)
1090 // bug in the element 0x0028,0x1053
1091 gdcmWarningMacro( "Rescale Slope (0028,1053) is empty.");
1099 * \brief This function is intended to user who doesn't want
1100 * to have to manage a LUT and expects to get an RBG Pixel image
1101 * (or a monochrome one ...)
1102 * \warning to be used with GetImagePixels()
1103 * @return 1 if Gray level, 3 if Color (RGB, YBR or PALETTE COLOR)
1105 int File::GetNumberOfScalarComponents()
1107 if ( GetSamplesPerPixel() == 3 )
1112 // 0028 0100 US IMG Bits Allocated
1113 // (in order no to be messed up by old RGB images)
1114 if ( GetEntryValue(0x0028,0x0100) == "24" )
1119 std::string strPhotometricInterpretation = GetEntryValue(0x0028,0x0004);
1121 if ( ( strPhotometricInterpretation == "PALETTE COLOR ") )
1123 if ( HasLUT() )// PALETTE COLOR is NOT enough
1133 // beware of trailing space at end of string
1134 // DICOM tags are never of odd length
1135 if ( strPhotometricInterpretation == GDCM_UNFOUND ||
1136 Util::DicomStringEqual(strPhotometricInterpretation, "MONOCHROME1") ||
1137 Util::DicomStringEqual(strPhotometricInterpretation, "MONOCHROME2") )
1143 // we assume that *all* kinds of YBR are dealt with
1149 * \brief This function is intended to user that DOESN'T want
1150 * to get RGB pixels image when it's stored as a PALETTE COLOR image
1151 * - the (vtk) user is supposed to know how deal with LUTs -
1152 * \warning to be used with GetImagePixelsRaw()
1153 * @return 1 if Gray level, 3 if Color (RGB or YBR - NOT 'PALETTE COLOR' -)
1155 int File::GetNumberOfScalarComponentsRaw()
1157 // 0028 0100 US IMG Bits Allocated
1158 // (in order no to be messed up by old RGB images)
1159 if ( File::GetEntryValue(0x0028,0x0100) == "24" )
1164 // we assume that *all* kinds of YBR are dealt with
1165 return GetSamplesPerPixel();
1169 * \brief Recover the offset (from the beginning of the file)
1170 * of *image* pixels (not *icone image* pixels, if any !)
1171 * @return Pixel Offset
1173 size_t File::GetPixelOffset()
1175 DocEntry *pxlElement = GetDocEntry(GrPixel, NumPixel);
1178 return pxlElement->GetOffset();
1182 gdcmDebugMacro( "Big trouble : Pixel Element ("
1183 << std::hex << GrPixel<<","<< NumPixel<< ") NOT found" );
1189 * \brief Recover the pixel area length (in Bytes)
1190 * @return Pixel Element Length, as stored in the header
1191 * (NOT the memory space necessary to hold the Pixels
1192 * -in case of embeded compressed image-)
1193 * 0 : NOT USABLE file. The caller has to check.
1195 size_t File::GetPixelAreaLength()
1197 DocEntry *pxlElement = GetDocEntry(GrPixel, NumPixel);
1200 return pxlElement->GetLength();
1204 gdcmDebugMacro( "Big trouble : Pixel Element ("
1205 << std::hex << GrPixel<<","<< NumPixel<< ") NOT found" );
1211 * \brief Adds the characteristics of a new element we want to anonymize
1214 void File::AddAnonymizeElement (uint16_t group, uint16_t elem,
1215 std::string const &value)
1222 AnonymizeList.push_back(el);
1226 * \brief Overwrites in the file the values of the DicomElements
1229 void File::AnonymizeNoLoad()
1231 std::fstream *fp = new std::fstream(Filename.c_str(),
1232 std::ios::in | std::ios::out | std::ios::binary);
1236 uint32_t valLgth = 0;
1237 std::string *spaces;
1238 for (ListElements::iterator it = AnonymizeList.begin();
1239 it != AnonymizeList.end();
1242 d = GetDocEntry( (*it).Group, (*it).Elem);
1247 if ( dynamic_cast<BinEntry *>(d)
1248 || dynamic_cast<SeqEntry *>(d) )
1251 offset = d->GetOffset();
1252 lgth = d->GetLength();
1255 spaces = new std::string( lgth-valLgth, ' ');
1256 (*it).Value = (*it).Value + *spaces;
1259 fp->seekp( offset, std::ios::beg );
1260 fp->write( (*it).Value.c_str(), lgth );
1268 * \brief anonymize a File (removes Patient's personal info passed with
1269 * AddAnonymizeElement()
1271 bool File::AnonymizeFile()
1273 // If Anonymisation list is empty, let's perform some basic anonymization
1274 if ( AnonymizeList.begin() == AnonymizeList.end() )
1276 // If exist, replace by spaces
1277 SetValEntry (" ",0x0010, 0x2154); // Telephone
1278 SetValEntry (" ",0x0010, 0x1040); // Adress
1279 SetValEntry (" ",0x0010, 0x0020); // Patient ID
1281 DocEntry* patientNameHE = GetDocEntry (0x0010, 0x0010);
1283 if ( patientNameHE ) // we replace it by Study Instance UID (why not ?)
1285 std::string studyInstanceUID = GetEntryValue (0x0020, 0x000d);
1286 if ( studyInstanceUID != GDCM_UNFOUND )
1288 SetValEntry(studyInstanceUID, 0x0010, 0x0010);
1292 SetValEntry("anonymised", 0x0010, 0x0010);
1299 for (ListElements::iterator it = AnonymizeList.begin();
1300 it != AnonymizeList.end();
1303 d = GetDocEntry( (*it).Group, (*it).Elem);
1308 if ( dynamic_cast<BinEntry *>(d)
1309 || dynamic_cast<SeqEntry *>(d) )
1312 SetValEntry ((*it).Value, (*it).Group, (*it).Elem);
1316 // In order to make definitively impossible any further identification
1317 // remove or replace all the stuff that contains a Date
1319 //0008 0012 DA ID Instance Creation Date
1320 //0008 0020 DA ID Study Date
1321 //0008 0021 DA ID Series Date
1322 //0008 0022 DA ID Acquisition Date
1323 //0008 0023 DA ID Content Date
1324 //0008 0024 DA ID Overlay Date
1325 //0008 0025 DA ID Curve Date
1326 //0008 002a DT ID Acquisition Datetime
1327 //0018 9074 DT ACQ Frame Acquisition Datetime
1328 //0018 9151 DT ACQ Frame Reference Datetime
1329 //0018 a002 DT ACQ Contribution Date Time
1330 //0020 3403 SH REL Modified Image Date (RET)
1331 //0032 0032 DA SDY Study Verified Date
1332 //0032 0034 DA SDY Study Read Date
1333 //0032 1000 DA SDY Scheduled Study Start Date
1334 //0032 1010 DA SDY Scheduled Study Stop Date
1335 //0032 1040 DA SDY Study Arrival Date
1336 //0032 1050 DA SDY Study Completion Date
1337 //0038 001a DA VIS Scheduled Admission Date
1338 //0038 001c DA VIS Scheduled Discharge Date
1339 //0038 0020 DA VIS Admitting Date
1340 //0038 0030 DA VIS Discharge Date
1341 //0040 0002 DA PRC Scheduled Procedure Step Start Date
1342 //0040 0004 DA PRC Scheduled Procedure Step End Date
1343 //0040 0244 DA PRC Performed Procedure Step Start Date
1344 //0040 0250 DA PRC Performed Procedure Step End Date
1345 //0040 2004 DA PRC Issue Date of Imaging Service Request
1346 //0040 4005 DT PRC Scheduled Procedure Step Start Date and Time
1347 //0040 4011 DT PRC Expected Completion Date and Time
1348 //0040 a030 DT PRC Verification Date Time
1349 //0040 a032 DT PRC Observation Date Time
1350 //0040 a120 DT PRC DateTime
1351 //0040 a121 DA PRC Date
1352 //0040 a13a DT PRC Referenced Datetime
1353 //0070 0082 DA ??? Presentation Creation Date
1354 //0100 0420 DT ??? SOP Autorization Date and Time
1355 //0400 0105 DT ??? Digital Signature DateTime
1356 //2100 0040 DA PJ Creation Date
1357 //3006 0008 DA SSET Structure Set Date
1358 //3008 0024 DA ??? Treatment Control Point Date
1359 //3008 0054 DA ??? First Treatment Date
1360 //3008 0056 DA ??? Most Recent Treatment Date
1361 //3008 0162 DA ??? Safe Position Exit Date
1362 //3008 0166 DA ??? Safe Position Return Date
1363 //3008 0250 DA ??? Treatment Date
1364 //300a 0006 DA RT RT Plan Date
1365 //300a 022c DA RT Air Kerma Rate Reference Date
1366 //300e 0004 DA RT Review Date
1372 * \brief Performs some consistency checking on various 'File related'
1373 * (as opposed to 'DicomDir related') entries
1374 * then writes in a file all the (Dicom Elements) included the Pixels
1375 * @param fileName file name to write to
1376 * @param writetype Type of the File to be written
1377 * (ACR, ExplicitVR, ImplicitVR)
1379 bool File::Write(std::string fileName, FileType writetype)
1381 std::ofstream *fp = new std::ofstream(fileName.c_str(),
1382 std::ios::out | std::ios::binary);
1385 gdcmWarningMacro("Failed to open (write) File: " << fileName.c_str());
1389 // Entry : 0002|0000 = group length -> recalculated
1390 ValEntry*e0000 = GetValEntry(0x0002,0x0000);
1393 std::ostringstream sLen;
1394 sLen << ComputeGroup0002Length(writetype);
1395 e0000->SetValue(sLen.str());
1398 int i_lgPix = GetEntryLength(GrPixel, NumPixel);
1401 // no (GrPixel, NumPixel) element
1402 std::string s_lgPix = Util::Format("%d", i_lgPix+12);
1403 s_lgPix = Util::DicomString( s_lgPix.c_str() );
1404 InsertValEntry(s_lgPix,GrPixel, 0x0000);
1407 Document::WriteContent(fp, writetype);
1415 //-----------------------------------------------------------------------------
1419 //-----------------------------------------------------------------------------
1422 * \brief Parse pixel data from disk of [multi-]fragment RLE encoding.
1423 * Compute the RLE extra information and store it in \ref RLEInfo
1424 * for later pixel retrieval usage.
1426 void File::ComputeRLEInfo()
1428 std::string ts = GetTransferSyntax();
1429 if ( !Global::GetTS()->IsRLELossless(ts) )
1434 // Encoded pixel data: for the time being we are only concerned with
1435 // Jpeg or RLE Pixel data encodings.
1436 // As stated in PS 3.5-2003, section 8.2 p44:
1437 // "If sent in Encapsulated Format (i.e. other than the Native Format) the
1438 // value representation OB is used".
1439 // Hence we expect an OB value representation. Concerning OB VR,
1440 // the section PS 3.5-2003, section A.4.c p 58-59, states:
1441 // "For the Value Representations OB and OW, the encoding shall meet the
1442 // following specifications depending on the Data element tag:"
1444 // - the first item in the sequence of items before the encoded pixel
1445 // data stream shall be basic offset table item. The basic offset table
1446 // item value, however, is not required to be present"
1447 ReadAndSkipEncapsulatedBasicOffsetTable();
1449 // Encapsulated RLE Compressed Images (see PS 3.5-2003, Annex G)
1450 // Loop on the individual frame[s] and store the information
1451 // on the RLE fragments in a RLEFramesInfo.
1452 // Note: - when only a single frame is present, this is a
1454 // - when more than one frame are present, then we are in
1455 // the case of a multi-frame image.
1457 while ( (frameLength = ReadTagLength(0xfffe, 0xe000)) != 0 )
1459 // Parse the RLE Header and store the corresponding RLE Segment
1460 // Offset Table information on fragments of this current Frame.
1461 // Note that the fragment pixels themselves are not loaded
1462 // (but just skipped).
1463 long frameOffset = Fp->tellg();
1465 uint32_t nbRleSegments = ReadInt32();
1466 if ( nbRleSegments > 16 )
1468 // There should be at most 15 segments (refer to RLEFrame class)
1469 gdcmWarningMacro( "Too many segments.");
1472 uint32_t rleSegmentOffsetTable[16];
1473 for( int k = 1; k <= 15; k++ )
1475 rleSegmentOffsetTable[k] = ReadInt32();
1478 // Deduce from both the RLE Header and the frameLength the
1479 // fragment length, and again store this info in a
1481 long rleSegmentLength[15];
1482 // skipping (not reading) RLE Segments
1483 if ( nbRleSegments > 1)
1485 for(unsigned int k = 1; k <= nbRleSegments-1; k++)
1487 rleSegmentLength[k] = rleSegmentOffsetTable[k+1]
1488 - rleSegmentOffsetTable[k];
1489 SkipBytes(rleSegmentLength[k]);
1493 rleSegmentLength[nbRleSegments] = frameLength
1494 - rleSegmentOffsetTable[nbRleSegments];
1495 SkipBytes(rleSegmentLength[nbRleSegments]);
1497 // Store the collected info
1498 RLEFrame *newFrame = new RLEFrame;
1499 newFrame->SetNumberOfFragments(nbRleSegments);
1500 for( unsigned int uk = 1; uk <= nbRleSegments; uk++ )
1502 newFrame->SetOffset(uk,frameOffset + rleSegmentOffsetTable[uk]);
1503 newFrame->SetLength(uk,rleSegmentLength[uk]);
1505 RLEInfo->AddFrame(newFrame);
1508 // Make sure that at the end of the item we encounter a 'Sequence
1510 if ( !ReadTag(0xfffe, 0xe0dd) )
1512 gdcmWarningMacro( "No sequence delimiter item at end of RLE item sequence");
1517 * \brief Parse pixel data from disk of [multi-]fragment Jpeg encoding.
1518 * Compute the jpeg extra information (fragment[s] offset[s] and
1519 * length) and store it[them] in \ref JPEGInfo for later pixel
1522 void File::ComputeJPEGFragmentInfo()
1524 // If you need to, look for comments of ComputeRLEInfo().
1525 std::string ts = GetTransferSyntax();
1526 if ( ! Global::GetTS()->IsJPEG(ts) )
1531 ReadAndSkipEncapsulatedBasicOffsetTable();
1533 // Loop on the fragments[s] and store the parsed information in a
1535 long fragmentLength;
1536 while ( (fragmentLength = ReadTagLength(0xfffe, 0xe000)) != 0 )
1538 long fragmentOffset = Fp->tellg();
1540 // Store the collected info
1541 JPEGFragment *newFragment = new JPEGFragment;
1542 newFragment->SetOffset(fragmentOffset);
1543 newFragment->SetLength(fragmentLength);
1544 JPEGInfo->AddFragment(newFragment);
1546 SkipBytes(fragmentLength);
1549 // Make sure that at the end of the item we encounter a 'Sequence
1551 if ( !ReadTag(0xfffe, 0xe0dd) )
1553 gdcmWarningMacro( "No sequence delimiter item at end of JPEG item sequence");
1558 * \brief Assuming the internal file pointer \ref Document::Fp
1559 * is placed at the beginning of a tag check whether this
1560 * tag is (TestGroup, TestElement).
1561 * \warning On success the internal file pointer \ref Document::Fp
1562 * is modified to point after the tag.
1563 * On failure (i.e. when the tag wasn't the expected tag
1564 * (TestGroup, TestElement) the internal file pointer
1565 * \ref Document::Fp is restored to it's original position.
1566 * @param testGroup The expected group of the tag.
1567 * @param testElement The expected Element of the tag.
1568 * @return True on success, false otherwise.
1570 bool File::ReadTag(uint16_t testGroup, uint16_t testElement)
1572 long positionOnEntry = Fp->tellg();
1573 long currentPosition = Fp->tellg(); // On debugging purposes
1575 // Read the Item Tag group and element, and make
1576 // sure they are what we expected:
1577 uint16_t itemTagGroup;
1578 uint16_t itemTagElement;
1581 itemTagGroup = ReadInt16();
1582 itemTagElement = ReadInt16();
1584 catch ( FormatError e )
1586 //std::cerr << e << std::endl;
1589 if ( itemTagGroup != testGroup || itemTagElement != testElement )
1591 gdcmWarningMacro( "Wrong Item Tag found:"
1592 << " We should have found tag ("
1593 << std::hex << testGroup << "," << testElement << ")" << std::endl
1594 << " but instead we encountered tag ("
1595 << std::hex << itemTagGroup << "," << itemTagElement << ")"
1596 << " at address: " << " 0x(" << (unsigned int)currentPosition << ")"
1598 Fp->seekg(positionOnEntry, std::ios::beg);
1606 * \brief Assuming the internal file pointer \ref Document::Fp
1607 * is placed at the beginning of a tag (TestGroup, TestElement),
1608 * read the length associated to the Tag.
1609 * \warning On success the internal file pointer \ref Document::Fp
1610 * is modified to point after the tag and it's length.
1611 * On failure (i.e. when the tag wasn't the expected tag
1612 * (TestGroup, TestElement) the internal file pointer
1613 * \ref Document::Fp is restored to it's original position.
1614 * @param testGroup The expected group of the tag.
1615 * @param testElement The expected Element of the tag.
1616 * @return On success returns the length associated to the tag. On failure
1619 uint32_t File::ReadTagLength(uint16_t testGroup, uint16_t testElement)
1622 if ( !ReadTag(testGroup, testElement) )
1627 //// Then read the associated Item Length
1628 long currentPosition = Fp->tellg();
1629 uint32_t itemLength = ReadInt32();
1631 gdcmWarningMacro( "Basic Item Length is: "
1632 << itemLength << std::endl
1633 << " at address: " << std::hex << (unsigned int)currentPosition);
1639 * \brief When parsing the Pixel Data of an encapsulated file, read
1640 * the basic offset table (when present, and BTW dump it).
1642 void File::ReadAndSkipEncapsulatedBasicOffsetTable()
1644 //// Read the Basic Offset Table Item Tag length...
1645 uint32_t itemLength = ReadTagLength(0xfffe, 0xe000);
1647 // When present, read the basic offset table itself.
1648 // Notes: - since the presence of this basic offset table is optional
1649 // we can't rely on it for the implementation, and we will simply
1650 // trash it's content (when present).
1651 // - still, when present, we could add some further checks on the
1652 // lengths, but we won't bother with such fuses for the time being.
1653 if ( itemLength != 0 )
1655 char *basicOffsetTableItemValue = new char[itemLength + 1];
1656 Fp->read(basicOffsetTableItemValue, itemLength);
1659 for (unsigned int i=0; i < itemLength; i += 4 )
1661 uint32_t individualLength = str2num( &basicOffsetTableItemValue[i],
1663 gdcmWarningMacro( "Read one length: " <<
1664 std::hex << individualLength );
1668 delete[] basicOffsetTableItemValue;
1672 //-----------------------------------------------------------------------------
1675 //-----------------------------------------------------------------------------
1676 } // end namespace gdcm