Program: gdcm
Module: $RCSfile: gdcmFile.cxx,v $
Language: C++
- Date: $Date: 2005/02/17 11:02:47 $
- Version: $Revision: 1.225 $
+ Date: $Date: 2005/06/02 14:20:14 $
+ Version: $Revision: 1.240 $
Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
l'Image). All rights reserved. See Doc/License.txt or
{
//-----------------------------------------------------------------------------
// Constructor / Destructor
+
+/**
+ * \brief Constructor used when we want to generate dicom files from scratch
+ */
+File::File():
+ Document()
+{
+ RLEInfo = new RLEFramesInfo;
+ JPEGInfo = new JPEGFragmentsInfo;
+ GrPixel = 0x7fe0;
+ NumPixel = 0x0010;
+}
+
/**
* \brief Constructor
* @param filename name of the file whose header we want to analyze
*/
File::File( std::string const &filename )
- :Document( filename )
+ :Document(filename)
{
RLEInfo = new RLEFramesInfo;
JPEGInfo = new JPEGFragmentsInfo;
{
// Compute the RLE or JPEG info
OpenFile();
- std::string ts = GetTransferSyntax();
+ const std::string &ts = GetTransferSyntax();
Fp->seekg( entry->GetOffset(), std::ios::beg );
if ( Global::GetTS()->IsRLELossless(ts) )
ComputeRLEInfo();
}
}
-/**
- * \brief Constructor used when we want to generate dicom files from scratch
- */
-File::File():
- Document()
-{
- RLEInfo = new RLEFramesInfo;
- JPEGInfo = new JPEGFragmentsInfo;
- InitializeDefaultFile();
-}
/**
* \brief Canonical destructor.
//-----------------------------------------------------------------------------
// Public
+
+
/**
* \brief This predicate, based on hopefully reasonable heuristics,
* decides whether or not the current File was properly parsed
{
return false; // "Pixel Representation" i.e. 'Sign'
}
-
+ if ( !GetDocEntry(GrPixel, NumPixel) )
+ {
+ return false; // Pixel Dicom Element not found :-(
+ }
return true;
}
else if ( strModality.find("PT") < strModality.length()) return PT;
else if ( strModality.find("RF") < strModality.length()) return RF;
else if ( strModality.find("RG") < strModality.length()) return RG;
- else if ( strModality.find("RTDOSE") < strModality.length()) return RTDOSE;
- else if ( strModality.find("RTIMAGE") < strModality.length()) return RTIMAGE;
- else if ( strModality.find("RTPLAN") < strModality.length()) return RTPLAN;
- else if ( strModality.find("RTSTRUCT") < strModality.length()) return RTSTRUCT;
+ else if ( strModality.find("RTDOSE")
+ < strModality.length()) return RTDOSE;
+ else if ( strModality.find("RTIMAGE")
+ < strModality.length()) return RTIMAGE;
+ else if ( strModality.find("RTPLAN")
+ < strModality.length()) return RTPLAN;
+ else if ( strModality.find("RTSTRUCT")
+ < strModality.length()) return RTSTRUCT;
else if ( strModality.find("SM") < strModality.length()) return SM;
else if ( strModality.find("ST") < strModality.length()) return ST;
else if ( strModality.find("TG") < strModality.length()) return TG;
/**
* \brief gets the info from 0028,0030 : Pixel Spacing
+ * (first in 0018,1164 : ImagerPixelSpacing)
* else 1.0
* @return X dimension of a pixel
*/
{
float xspacing = 1.0;
float yspacing = 1.0;
+ int nbValues;
+
+ // To follow David Clunie's advice, we first check ImagerPixelSpacing
+ // (never saw any image with that field :-(
+
+ const std::string &strImagerPixelSpacing = GetEntryValue(0x0018,0x1164);
+ if( strImagerPixelSpacing != GDCM_UNFOUND )
+ {
+ if( ( nbValues = sscanf( strImagerPixelSpacing.c_str(),
+ "%f\\%f", &yspacing, &xspacing)) != 2 )
+ {
+ // if no values, xspacing is set to 1.0
+ if( nbValues == 0 )
+ xspacing = 1.0;
+ // if single value is found, xspacing is defaulted to yspacing
+ if( nbValues == 1 )
+ xspacing = yspacing;
+
+ if ( xspacing == 0.0 )
+ xspacing = 1.0;
+
+ return xspacing;
+ }
+ }
+
+
const std::string &strSpacing = GetEntryValue(0x0028,0x0030);
if( strSpacing == GDCM_UNFOUND )
return 1.;
}
- int nbValues;
if( ( nbValues = sscanf( strSpacing.c_str(),
- "%f\\%f", &yspacing, &xspacing)) != 2 )
+ "%f \\%f ", &yspacing, &xspacing)) != 2 )
{
// if no values, xspacing is set to 1.0
if( nbValues == 0 )
{
gdcmWarningMacro("gdcmData/CT-MONO2-8-abdo.dcm-like problem");
// seems to be a bug in the header ...
- nbValues = sscanf( strSpacing.c_str(), "%f\\0\\%f", &yspacing, &xspacing);
+ nbValues = sscanf( strSpacing.c_str(), "%f \\0\\%f ", &yspacing, &xspacing);
gdcmAssertMacro( nbValues == 2 );
}
/**
* \brief gets the info from 0028,0030 : Pixel Spacing
+ * (first in 0018,1164 : ImagerPixelSpacing)
* else 1.0
* @return Y dimension of a pixel
*/
float File::GetYSpacing()
{
float yspacing = 1.;
- std::string strSpacing = GetEntryValue(0x0028,0x0030);
-
+ int nbValues;
+ // To follow David Clunie's advice, we first check ImagerPixelSpacing
+ // (never saw any image with that field :-(
+
+ const std::string &strImagerPixelSpacing = GetEntryValue(0x0018,0x1164);
+ if( strImagerPixelSpacing != GDCM_UNFOUND )
+ {
+ nbValues = sscanf( strImagerPixelSpacing.c_str(), "%f", &yspacing);
+
+ // if sscanf cannot read any float value, it won't affect yspacing
+ if( nbValues == 0 )
+ yspacing = 1.0;
+
+ if ( yspacing == 0.0 )
+ yspacing = 1.0;
+
+ return yspacing;
+ }
+
+ std::string strSpacing = GetEntryValue(0x0028,0x0030);
if ( strSpacing == GDCM_UNFOUND )
{
gdcmWarningMacro("Unfound Pixel Spacing (0028,0030)");
}
// if sscanf cannot read any float value, it won't affect yspacing
- int nbValues = sscanf( strSpacing.c_str(), "%f", &yspacing);
+ nbValues = sscanf( strSpacing.c_str(), "%f", &yspacing);
- // if no values, xspacing is set to 1.0
+ // if no values, yspacing is set to 1.0
if( nbValues == 0 )
yspacing = 1.0;
}
}
- if( sscanf( strImPos.c_str(), "%f\\%f\\%f", &xImPos, &yImPos, &zImPos) != 3 )
+ if( sscanf( strImPos.c_str(), "%f \\%f \\%f ", &xImPos, &yImPos, &zImPos) != 3 )
{
return 0.;
}
}
}
- if( sscanf( strImPos.c_str(), "%f\\%f\\%f", &xImPos, &yImPos, &zImPos) != 3 )
+ if( sscanf( strImPos.c_str(), "%f \\%f \\%f ", &xImPos, &yImPos, &zImPos) != 3 )
{
return 0.;
}
if ( strImPos != GDCM_UNFOUND )
{
- if( sscanf( strImPos.c_str(), "%f\\%f\\%f", &xImPos, &yImPos, &zImPos) != 3)
+ if( sscanf( strImPos.c_str(), "%f \\%f \\%f ", &xImPos, &yImPos, &zImPos) != 3)
{
gdcmWarningMacro( "Wrong Image Position Patient (0020,0032)");
return 0.; // bug in the element 0x0020,0x0032
if ( strImPos != GDCM_UNFOUND )
{
if( sscanf( strImPos.c_str(),
- "%f\\%f\\%f", &xImPos, &yImPos, &zImPos ) != 3 )
+ "%f \\%f \\%f ", &xImPos, &yImPos, &zImPos ) != 3 )
{
gdcmWarningMacro( "Wrong Image Position (RET) (0020,0030)");
return 0.; // bug in the element 0x0020,0x0032
std::string strSliceLocation = GetEntryValue(0x0020,0x1041); // for *very* old ACR-NEMA images
if ( strSliceLocation != GDCM_UNFOUND )
{
- if( sscanf( strSliceLocation.c_str(), "%f", &zImPos) != 1)
+ if( sscanf( strSliceLocation.c_str(), "%f ", &zImPos) != 1)
{
gdcmWarningMacro( "Wrong Slice Location (0020,1041)");
return 0.; // bug in the element 0x0020,0x1041
std::string strLocation = GetEntryValue(0x0020,0x0050);
if ( strLocation != GDCM_UNFOUND )
{
- if( sscanf( strLocation.c_str(), "%f", &zImPos) != 1)
+ if( sscanf( strLocation.c_str(), "%f ", &zImPos) != 1)
{
gdcmWarningMacro( "Wrong Location (0020,0050)");
return 0.; // bug in the element 0x0020,0x0050
// 0020 0037 DS REL Image Orientation (Patient)
if ( (strImOriPat = GetEntryValue(0x0020,0x0037)) != GDCM_UNFOUND )
{
- if( sscanf( strImOriPat.c_str(), "%f\\%f\\%f\\%f\\%f\\%f",
+ if( sscanf( strImOriPat.c_str(), "%f \\ %f \\%f \\%f \\%f \\%f ",
&iop[0], &iop[1], &iop[2], &iop[3], &iop[4], &iop[5]) != 6 )
{
gdcmWarningMacro( "Wrong Image Orientation Patient (0020,0037). Less than 6 values were found." );
// 0020 0035 DS REL Image Orientation (RET)
else if ( (strImOriPat = GetEntryValue(0x0020,0x0035)) != GDCM_UNFOUND )
{
- if( sscanf( strImOriPat.c_str(), "%f\\%f\\%f\\%f\\%f\\%f",
+ if( sscanf( strImOriPat.c_str(), "%f \\ %f \\%f \\%f \\%f \\%f ",
&iop[0], &iop[1], &iop[2], &iop[3], &iop[4], &iop[5]) != 6 )
{
gdcmWarningMacro( "wrong Image Orientation Patient (0020,0035). Less than 6 values were found." );
int File::GetBitsAllocated()
{
std::string strSize = GetEntryValue(0x0028,0x0100);
- if ( strSize == GDCM_UNFOUND )
+ if ( strSize == GDCM_UNFOUND )
{
gdcmWarningMacro( "(0028,0100) is supposed to be mandatory");
return 0; // It's supposed to be mandatory
}
/**
- * \brief Check whether the pixels are signed or UNsigned data.
- * \warning The method defaults to false (UNsigned) when information is Missing.
+ * \brief Check whether the pixels are signed (1) or UNsigned (0) data.
+ * \warning The method defaults to false (UNsigned) when tag 0028|0103
+ * is missing.
* The responsability of checking this value is left to the caller.
* @return True when signed, false when UNsigned
*/
bool File::IsSignedPixelData()
{
- std::string strSize = GetEntryValue( 0x0028, 0x0103 );
- if ( strSize == GDCM_UNFOUND )
+ std::string strSign = GetEntryValue( 0x0028, 0x0103 );
+ if ( strSign == GDCM_UNFOUND )
{
gdcmWarningMacro( "(0028,0103) is supposed to be mandatory");
return false;
}
- int sign = atoi( strSize.c_str() );
+ int sign = atoi( strSign.c_str() );
if ( sign == 0 )
{
return false;
const std::string &strRescInter = GetEntryValue(0x0028,0x1052);
if ( strRescInter != GDCM_UNFOUND )
{
- if( sscanf( strRescInter.c_str(), "%f", &resInter) != 1 )
+ if( sscanf( strRescInter.c_str(), "%f ", &resInter) != 1 )
{
// bug in the element 0x0028,0x1052
gdcmWarningMacro( "Rescale Intercept (0028,1052) is empty." );
std::string strRescSlope = GetEntryValue(0x0028,0x1053);
if ( strRescSlope != GDCM_UNFOUND )
{
- if( sscanf( strRescSlope.c_str(), "%f", &resSlope) != 1)
+ if( sscanf( strRescSlope.c_str(), "%f ", &resSlope) != 1)
{
// bug in the element 0x0028,0x1053
gdcmWarningMacro( "Rescale Slope (0028,1053) is empty.");
void File::AnonymizeNoLoad()
{
std::fstream *fp = new std::fstream(Filename.c_str(),
- std::ios::in | std::ios::out | std::ios::binary);
-
- // TODO : FIXME
- // how to white out disk space if longer than 50 ?
-
-
+ std::ios::in | std::ios::out | std::ios::binary);
gdcm::DocEntry *d;
uint32_t offset;
uint32_t lgth;
e0000->SetValue(sLen.str());
}
- // Bits Allocated
- if ( GetEntryValue(0x0028,0x0100) == "12")
- {
- SetValEntry("16", 0x0028,0x0100);
- }
-
int i_lgPix = GetEntryLength(GrPixel, NumPixel);
if (i_lgPix != -2)
{
InsertValEntry(s_lgPix,GrPixel, 0x0000);
}
- // FIXME : should be nice if we could move it to File
- // (or in future gdcmPixelData class)
-
- // Drop Palette Color, if necessary
- if ( GetEntryValue(0x0028,0x0002).c_str()[0] == '3' )
- {
- // if SamplesPerPixel = 3, sure we don't need any LUT !
- // Drop 0028|1101, 0028|1102, 0028|1103
- // Drop 0028|1201, 0028|1202, 0028|1203
-
- DocEntry *e = GetDocEntry(0x0028,0x01101);
- if (e)
- {
- RemoveEntryNoDestroy(e);
- }
- e = GetDocEntry(0x0028,0x1102);
- if (e)
- {
- RemoveEntryNoDestroy(e);
- }
- e = GetDocEntry(0x0028,0x1103);
- if (e)
- {
- RemoveEntryNoDestroy(e);
- }
- e = GetDocEntry(0x0028,0x01201);
- if (e)
- {
- RemoveEntryNoDestroy(e);
- }
- e = GetDocEntry(0x0028,0x1202);
- if (e)
- {
- RemoveEntryNoDestroy(e);
- }
- e = GetDocEntry(0x0028,0x1203);
- if (e)
- {
- RemoveEntryNoDestroy(e);
- }
- }
-
Document::WriteContent(fp, writetype);
fp->close();
//-----------------------------------------------------------------------------
// Protected
-/**
- * \brief Initialize a default DICOM File that should contain all the
- * field require by other reader. DICOM standard does not
- * explicitely defines those fields, heuristic has been choosen.
- * This is not perfect as we are writting a Secondary Capture image...
- */
-void File::InitializeDefaultFile()
-{
- std::string date = Util::GetCurrentDate();
- std::string time = Util::GetCurrentTime();
- std::string uid = Util::CreateUniqueUID();
- std::string uidMedia = uid;
- std::string uidInst = uid;
- std::string uidClass = Util::CreateUniqueUID();
- std::string uidStudy = Util::CreateUniqueUID();
- std::string uidSerie = Util::CreateUniqueUID();
-
- // Meta Element Group Length
- InsertValEntry("146 ", 0x0002, 0x0000);
- // Media Storage SOP Class UID (Secondary Capture Image Storage)
- InsertValEntry("1.2.840.10008.5.1.4.1.1.7", 0x0002, 0x0002);
- // Media Storage SOP Instance UID
- InsertValEntry(uidMedia.c_str(), 0x0002, 0x0003);
- // Transfer Syntax UID (Explicit VR Little Endian)
- InsertValEntry("1.2.840.10008.1.2.1 ", 0x0002, 0x0010);
- // META Implementation Class UID
- InsertValEntry(uidClass.c_str(), 0x0002, 0x0012);
- // Source Application Entity Title
- InsertValEntry("GDCM", 0x0002, 0x0016);
-
- // Instance Creation Date
- InsertValEntry(date.c_str(), 0x0008, 0x0012);
- // Instance Creation Time
- InsertValEntry(time.c_str(), 0x0008, 0x0013);
- // SOP Class UID
- InsertValEntry("1.2.840.10008.5.1.4.1.1.2", 0x0008, 0x0016);
- // SOP Instance UID
- InsertValEntry(uidInst.c_str(), 0x0008, 0x0018);
- // Modality
- InsertValEntry("CT", 0x0008, 0x0060);
- // Manufacturer
- InsertValEntry("GDCM", 0x0008, 0x0070);
- // Institution Name
- InsertValEntry("GDCM", 0x0008, 0x0080);
- // Institution Address
- InsertValEntry("http://www-creatis.insa-lyon.fr/Public/Gdcm", 0x0008, 0x0081);
-
- // Patient's Name
- InsertValEntry("GDCM", 0x0010, 0x0010);
- // Patient ID
- InsertValEntry("GDCMID", 0x0010, 0x0020);
-
- // Study Instance UID
- InsertValEntry(uidStudy.c_str(), 0x0020, 0x000d);
- // Series Instance UID
- InsertValEntry(uidSerie.c_str(), 0x0020, 0x000e);
- // StudyID
- InsertValEntry("1", 0x0020, 0x0010);
- // SeriesNumber
- InsertValEntry("1", 0x0020, 0x0011);
-
- // Samples per pixel 1 or 3
- InsertValEntry("1", 0x0028, 0x0002);
- // photochromatic interpretation
- InsertValEntry("MONOCHROME1", 0x0028, 0x0004);
- // nbRows
- InsertValEntry("0", 0x0028, 0x0010);
- // nbCols
- InsertValEntry("0", 0x0028, 0x0011);
- // BitsAllocated 8 or 12 or 16
- InsertValEntry("8", 0x0028, 0x0100);
- // BitsStored <= BitsAllocated
- InsertValEntry("8", 0x0028, 0x0101);
- // HighBit <= BitsAllocated - 1
- InsertValEntry("7", 0x0028, 0x0102);
- // Pixel Representation 0(unsigned) or 1(signed)
- InsertValEntry("0", 0x0028, 0x0103);
-
- // default value
- // Special case this is the image (not a string)
- GrPixel = 0x7fe0;
- NumPixel = 0x0010;
- InsertBinEntry(0, 0, GrPixel, NumPixel);
-}
+
//-----------------------------------------------------------------------------
// Private
// - when more than one frame are present, then we are in
// the case of a multi-frame image.
long frameLength;
- while ( (frameLength = ReadTagLength(0xfffe, 0xe000)) )
+ while ( (frameLength = ReadTagLength(0xfffe, 0xe000)) != 0 )
{
// Parse the RLE Header and store the corresponding RLE Segment
// Offset Table information on fragments of this current Frame.
// Loop on the fragments[s] and store the parsed information in a
// JPEGInfo.
long fragmentLength;
- while ( (fragmentLength = ReadTagLength(0xfffe, 0xe000)) )
+ while ( (fragmentLength = ReadTagLength(0xfffe, 0xe000)) != 0 )
{
long fragmentOffset = Fp->tellg();
git://git.creatis.insa-lyon.fr / gdcm.git / blobdiff