Program: gdcm
Module: $RCSfile: gdcmTS.cxx,v $
Language: C++
- Date: $Date: 2005/01/07 19:20:39 $
- Version: $Revision: 1.32 $
+ Date: $Date: 2005/01/23 10:12:34 $
+ Version: $Revision: 1.38 $
Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
l'Image). All rights reserved. See Doc/License.txt or
namespace gdcm
{
+//-----------------------------------------------------------------------------
+static const char *SpecialStrings[] = {
+ // Implicit VR Little Endian
+ "1.2.840.10008.1.2",
+ // Implicit VR Big Endian DLX (G.E Private)
+ "1.2.840.113619.5.2",
+ // Explicit VR Little Endian
+ "1.2.840.10008.1.2.1",
+ // Deflated Explicit VR Little Endian
+ "1.2.840.10008.1.2.1.99",
+ // Explicit VR Big Endian
+ "1.2.840.10008.1.2.2",
+ // JPEG Baseline (Process 1)
+ "1.2.840.10008.1.2.4.50",
+ // JPEG Extended (Process 2 & 4)
+ "1.2.840.10008.1.2.4.51",
+ // JPEG Extended (Process 3 & 5)
+ "1.2.840.10008.1.2.4.52",
+ // JPEG Spectral Selection, Non-Hierarchical (Process 6 & 8)
+ "1.2.840.10008.1.2.4.53",
+ // JPEG Full Progression, Non-Hierarchical (Process 10 & 12)
+ "1.2.840.10008.1.2.4.55",
+ // JPEG Lossless, Non-Hierarchical (Process 14)
+ "1.2.840.10008.1.2.4.57",
+ // JPEG Lossless, Hierarchical, First-Order Prediction (Process 14, [Selection Value 1])
+ "1.2.840.10008.1.2.4.70",
+ // JPEG-LS Lossless Image Compression
+ "1.2.840.10008.1.2.4.80",
+ // JPEG-LS Lossy (Near-Lossless) Image Compression
+ "1.2.840.10008.1.2.4.81",
+ // JPEG 2000 Lossless
+ "1.2.840.10008.1.2.4.90",
+ // JPEG 2000
+ "1.2.840.10008.1.2.4.91",
+ // RLE Lossless
+ "1.2.840.10008.1.2.5",
+ // Unknown
+ "Unknown Transfer Syntax"
+};
+
void FillDefaultTSDict(TSHT &ts);
//-----------------------------------------------------------------------------
// Constructor / Destructor
std::ifstream from(filename.c_str());
if( !from )
{
- gdcmVerboseMacro("TS::TS: can't open dictionary" << filename.c_str());
+ gdcmVerboseMacro("Can't open dictionary" << filename.c_str());
FillDefaultTSDict( TsMap );
}
else
{
TSKey key;
TSAtr name;
-
+
while (!from.eof())
{
from >> key;
from >> std::ws;
std::getline(from, name);
-
+
if(key != "")
{
TsMap[key] = name;
//-----------------------------------------------------------------------------
// Print
/**
- * \ingroup VR
* \brief Print all
* @param os The output stream to be written to.
*/
TSAtr const & TS::GetValue(TSKey const &key)
{
- TSHT::const_iterator it = TsMap.find(key);
+ // First thing clean up the string sometime the transfer syntax is padded with spaces
+ std::string copy = key;
+ while ( copy.size() && !isdigit((unsigned char)copy[copy.size()-1]) )
+ {
+ copy.erase(copy.size()-1, 1);
+ }
+
+ TSHT::const_iterator it = TsMap.find(copy);
if (it == TsMap.end())
{
return GDCM_UNFOUND;
}
return it->second;
}
+/**
+ * \brief Determines if the key passed corresponds to a 'Transfer Syntax'
+ * as defined in DICOM (and stored in gdcm::TS class)
+ * @return True when key is an actual 'Transfer Syntax'. False in all
+ * other cases.
+ */
+bool TS::IsTransferSyntax(TSKey const &key)
+{
+ TSHT::const_iterator it = TsMap.find(key);
+ return it != TsMap.end();
+}
+
+/**
+ * \brief Determines if the Transfer Syntax was already encountered
+ * and if it corresponds to a Run Length Encoding Lossless one
+ * @return True when Run Length Encoding Lossless found. False in all
+ * other cases.
+ */
+bool TS::IsRLELossless(TSKey const &key)
+{
+ bool r = false;
+ // First check this is an actual transfer syntax
+ if( IsTransferSyntax(key) )
+ {
+ if ( key == SpecialStrings[RLELossless] )
+ {
+ r = true;
+ }
+ }
+ return r;
+}
+
+/**
+ * \brief Determines if the Transfer Syntax was already encountered
+ * and if it corresponds to a 'classical' JPEG Lossless one
+ * @return True when 'classical' Lossless found. False in all
+ * other cases.
+ */
+bool TS::IsJPEGLossless(TSKey const &key)
+{
+ bool r = false;
+ // First check this is an actual transfer syntax
+ if( IsTransferSyntax(key) )
+ {
+ if ( key == SpecialStrings[JPEGFullProgressionProcess10_12]
+ || key == SpecialStrings[JPEGLosslessProcess14]
+ || key == SpecialStrings[JPEGLosslessProcess14_1] )
+ {
+ r = true;
+ }
+ }
+ return r;
+}
+
+/**
+ * \brief Determines if the Transfer Syntax was already encountered
+ * and if it corresponds to a 'classical' JPEG Lossy one
+ * @return True when 'classical' Lossy found. False in all
+ * other cases.
+ */
+bool TS::IsJPEGLossy(TSKey const &key)
+{
+ bool r = false;
+ // First check this is an actual transfer syntax
+ if( IsTransferSyntax(key) )
+ {
+ if ( key == SpecialStrings[JPEGBaselineProcess1]
+ || key == SpecialStrings[JPEGExtendedProcess2_4]
+ || key == SpecialStrings[JPEGExtendedProcess3_5]
+ || key == SpecialStrings[JPEGSpectralSelectionProcess6_8] )
+ {
+ r = true;
+ }
+ }
+ return r;
+}
+/**
+ * \brief Determines if the Transfer Syntax was already encountered
+ * and if it corresponds to a JPEG2000 one
+ * @return True when JPEG2000 (Lossly or LossLess) found. False in all
+ * other cases.
+ */
+bool TS::IsJPEG2000(TSKey const &key)
+{
+ bool r = false;
+ // First check this is an actual transfer syntax
+ if( IsTransferSyntax(key) )
+ {
+ if ( key == SpecialStrings[JPEG2000Lossless]
+ || key == SpecialStrings[JPEG2000] )
+ {
+ r = true;
+ }
+ }
+ return r;
+}
+
+/**
+ * \brief Determines if the Transfer Syntax corresponds to
+ * 'classical' Jpeg Lossless or Jpeg lossy.
+ * @return True when any form of JPEG found. False otherwise.
+ */
+bool TS::IsJPEG(TSKey const &key)
+{
+ bool r = false;
+ // First check this is an actual transfer syntax
+ if( IsTransferSyntax(key) )
+ {
+ if ( IsJPEGLossy( key )
+ || IsJPEGLossless( key )
+ )
+ {
+ r = true;
+ }
+ }
+ return r;
+}
+
+/**
+ * \brief Determines if the Transfer Syntax corresponds to any form
+ * of Jpeg-LS encoded Pixel data.
+ * @return True when any form of JPEG-LS found. False otherwise.
+ */
+bool TS::IsJPEGLS(TSKey const &key)
+{
+ bool r = false;
+ // First check this is an actual transfer syntax
+ if( IsTransferSyntax(key) )
+ {
+ if ( key == SpecialStrings[JPEGLSLossless]
+ || key == SpecialStrings[JPEGLSNearLossless] )
+ {
+ r = true;
+ }
+ }
+ return r;
+}
+
+TS::SpecialType TS::GetSpecialTransferSyntax(TSKey const &key)
+{
+ for (int i = 0; SpecialStrings[i] != NULL; i++)
+ {
+ if ( SpecialStrings[i] == key )
+ {
+ return SpecialType(i);
+ }
+ }
+
+ return UnknownTS;
+}
+
+const char* TS::GetSpecialTransferSyntax(SpecialType t)
+{
+ return SpecialStrings[t];
+}
//-----------------------------------------------------------------------------
// Protected
git://git.creatis.insa-lyon.fr / gdcm.git / blobdiff