def anonymize(self):
""" According to PS 3.15-2008, basic application level
De-Indentification of a DICOM file requires replacing the values of a
set of data elements"""
self._anon_obj = gdcm.Anonymizer()
self._anon_obj.SetFile(self._file)
self._anon_obj.RemoveGroupLength()
if self._anon_tags is None:
self._anon_tags = get_anon_tags()
for tag in self._anon_tags:
cur_tag = tag['Tag'].replace("(", "")
cur_tag = cur_tag.replace(")", "")
name = tag["Attribute Name"].replace(" ", "").encode("utf8")
group, element = cur_tag.split(",", 1)
# TODO expand this 50xx, 60xx, gggg, eeee
if ("xx" not in group and "gggg" not in group
and "eeee" not in group):
group = int(group, 16)
element = int(element, 16)
if self.find(group=group, element=element):
self._anon_obj.Replace(gdcm.Tag(group, element),
"Anon" + name)
return self._anon_obj
def TestAnonymizer(filename, verbose=False):
r = gdcm.Reader()
r.SetFileName(filename)
sucess = r.Read()
if (not sucess): return 1
#print r.GetFile().GetDataSet()
ano = gdcm.Anonymizer()
ano.SetFile(r.GetFile())
# 1. Replace with another value
ano.Replace(gdcm.Tag(0x0010, 0x0010), "Test^Anonymize")
# 2. Remove a tag (even a SQ)
ano.Remove(gdcm.Tag(0x0008, 0x2112))
# 3. Make a tag empty
ano.Empty(gdcm.Tag(0x0008, 0x0070))
# Call the main function:
sucess = ano.RemovePrivateTags() # do it !
if (not sucess): return 1
# Check we can also change value from binary field
#ano.Replace( gdcm.Tag(0x0010,0x0010), "16", gdcm. )
# Let's check if our anonymization worked:
if verbose:
print(ano.GetFile().GetDataSet())
# So at that point r.GetFile() was modified, let's simply passed it to the Writer:
# First find a place where to write it out:
subdir = "TestAnonymizerPython"
tmpdir = gdcm.Testing.GetTempDirectory(subdir)
if not gdcm.System.FileIsDirectory(tmpdir):
gdcm.System.MakeDirectory(tmpdir)
# Ok directory does exist now, extract the name of the input file, and merge it in
# our newly created tmpdir:
outfilename = gdcm.Testing.GetTempFilename(filename, subdir)
w = gdcm.Writer()
w.SetFileName(outfilename)
w.SetFile(r.GetFile())
w.SetCheckFileMetaInformation(False)
sucess = w.Write()
if (not sucess): return 1
if verbose:
print("Success to write: %s" % outfilename)
return sucess
def __init__(self, key = None, cert = None, deterministicUIDs = True, \
generateDummyNames = True, salt = None, \
removeTags = None, addTags = None):
self.anonymizer = gdcm.Anonymizer()
self.dummy = True
# if key and cert is specified, encryption mode is enabled
if key is not None and cert is not None:
# or OpenSSL or whatever
self._cf = gdcm.CryptoFactory_GetFactoryInstance(
gdcm.CryptoFactory.DEFAULT)
self._cp = self._cf.CreateCMSProvider()
if not self._cp.ParseKeyFile(key):
raise ValueError(f'Key file {key} could not be read')
if not self._cp.ParseCertificateFile(cert):
raise ValueError(f'Certificate file {cert} could not be read')
# this one could be changes if necessary
self._cp.SetCipherType(
gdcm.CryptographicMessageSyntax.AES256_CIPHER)
self.anonymizer.SetCryptographicMessageSyntax(self._cp)
self.dummy = False
elif key is None or cert is None:
raise ValueError(
'Both key and cert must be specified to disable dummy mode')
if self.dummy:
# for the getters
self.deterministicUIDs = None
self.generateDummyNames = None
self.salt = ''
else:
# extension of Radpoint GDCM
self.setDeterminicticUIDs(deterministicUIDs)
self.setGenerateDummyNames(generateDummyNames)
self.setSalt(salt)
self.removeTagsFromBALCPA(removeTags)
self.addTagsToBALCPA(addTags)
if __name__ == "__main__":
import sys
gdcm.FileMetaInformation.SetSourceApplicationEntityTitle("DumbAnonymizer")
gdcm.UIDGenerator.SetRoot(THERALYS_ORG_ROOT)
r = gdcm.Reader()
filename = sys.argv[1]
r.SetFileName(filename)
if not r.Read(): sys.exit(1)
obj = MyAnon()
w = gdcm.Writer()
ano = gdcm.Anonymizer()
ano.SetFile(r.GetFile())
ano.RemoveGroupLength()
for tag, rule in tag_rules.items():
if rule[0] == 'Value':
print tag, rule
ano.Replace(gdcm.Tag(tag[0], tag[1]), rule[1])
elif rule[0] == 'Method':
print tag, rule
# result = locals()[rule[1]]()
methodname = rule[1]
if hasattr(obj, methodname):
_member = getattr(obj, methodname)
result = _member()
ano.Replace(gdcm.Tag(tag[0], tag[1]), result)
else:
def remove_retired(f):
an = gdcm.Anonymizer()
an.SetFile(f)
an.RemoveGroupLength()
an.RemoveRetired()
an.RemovePrivateTags()
