PhilipsPrivateRescaleInterceptSlope.py

 
 
"""
Usage:
 
 python
"""
 
import gdcm
import sys
 
filename = sys.argv[1]
tmpfile = "/tmp/philips_rescaled.dcm"
 
 
# Need to access some private tags, read the file :
reader = gdcm.Reader()
reader.SetFileName( filename )
if not reader.Read():
  sys.exit(1)
 
ds = reader.GetFile().GetDataSet()
 
#print ds
# (2005,1409)     DS      4       0.0
# (2005,140a)     DS      16      1.52283272283272
 
# (2005,0014)     LO      26      Philips MR Imaging DD 005
tag1 = gdcm.PrivateTag(0x2005,0x09,"Philips MR Imaging DD 005")
tag2 = gdcm.PrivateTag(0x2005,0x0a,"Philips MR Imaging DD 005")
print tag1
print tag2
 
# make sure to do a copy, we want the private tag to remain
# otherwise gdcm gives us a reference
el1 = gdcm.DataElement( ds.GetDataElement( tag1 ) )
print el1
el2 = gdcm.DataElement( ds.GetDataElement( tag2 ) )
print el2
 
# (0028,1052) DS [-1000]                                  #   6, 1 RescaleIntercept
# (0028,1053) DS [1]                                      #   2, 1 RescaleSlope
 
el1.SetTag( gdcm.Tag(0x0028,0x1052) )
el2.SetTag( gdcm.Tag(0x0028,0x1053) )
 
ds.Insert( el1 )
ds.Insert( el2 )
 
w = gdcm.Writer()
w.SetCheckFileMetaInformation( False )
w.SetFileName( tmpfile )
w.SetFile( reader.GetFile() )
if not w.Write():
  sys.exit(1)
 
print "success"