def add_LQMetric_data( self, lst, idc = -1 ):
"""
Add the ULW LQMetric for each Annotation passed in parameter.
The LQMetric is evaluated from the quality map stored in the
NIST object (in the field 9.308).
"""
if len( lst ) != 0:
# Add the LQMetric quality
qmap = self.get_field( "9.308" )
if qmap != None:
qmap = map( list, split( RS, qmap ) )
h = self.get_height( idc )
res = self.get_resolution( idc )
for m in lst:
coo = cooNIST2PIL( ( m.x, m.y ), h, res )
x, y = map_r( lambda x: int( x / ( 4 * res / 500.0 ) ), coo )
try:
m.LQM = int( qmap[ y ][ x ] )
except:
m.LQM = None
newformat = list( lst[ 0 ]._format )
if "LQM" not in newformat:
newformat.append( "LQM" )
lst.set_format( newformat )
return lst
def process_fileContent(self, data):
"""
Function to process the 1.003 field passed in parameter.
:param data: Content of the field 1.003.
:type data: str
:return: List of ntypes present in the NIST file, except the Type01.
:rtype: lst
Usage:
>>> fileContent = n.get_field( "1.003" )
>>> n.process_fileContent( fileContent )
[2]
"""
try:
data = map(lambda x: map(int, x.split(US)), data.split(RS))
except:
data = replace_r(split_r([RS, US], data), '', '1')
data = map_r(int, data)
self.nbLogicalRecords = data[0][1]
return [ntype for ntype, idc in data[1:]]
def add_LQMetric_data( self, lst, idc = -1 ):
"""
Add the ULW LQMetric for each Annotation passed in parameter.
The LQMetric is evaluated from the quality map stored in the
NIST object (in the field 9.308).
"""
if len( lst ) != 0:
# Add the LQMetric quality
qmap = self.get_field( "9.308" )
if qmap != None:
try:
gridSize, compression = self.get_field( "9.309", idc ).split( US )
except:
gridSize, compression = 20, "UNC"
qmap = split( RS, qmap )
if compression == 'RLE':
qmap = RLE_decode( qmap )
qmap = map( list, qmap )
h = self.get_height( idc )
res = self.get_resolution( idc )
fac = int( round( int( gridSize ) / 100 * self.get_resolution( idc ) / 25.4 ) )
for m in lst:
coo = cooNIST2PIL( ( m.x, m.y ), h, res )
x, y = map_r( lambda x: int( x / fac ), coo )
try:
m.LQM = int( qmap[ y ][ x ] )
except:
m.LQM = None
newformat = list( lst[ 0 ]._format )
if "LQM" not in newformat:
newformat.append( "LQM" )
lst.set_format( newformat )
return lst
def lstTo137( lst, res = None ):
"""
Convert the entire minutiae-table to the 9.137 field format.
:param lst: List of minutiae
:type lst: list of lists
:param format: Format of the minutiae
:type format: str
:return: 9.012 field
:rtype: str
Usage:
>>> from NIST.fingerprint.functions import lstTo137
>>> lstTo137(
... [[ 1, 7.85, 7.05, 290, 0, 100 ],
... [ 2, 13.80, 15.30, 155, 0, 100 ],
... [ 3, 11.46, 22.32, 224, 0, 100 ],
... [ 4, 22.61, 25.17, 194, 0, 100 ],
... [ 5, 6.97, 8.48, 153, 0, 100 ],
... [ 6, 12.58, 19.88, 346, 0, 100 ],
... [ 7, 19.69, 19.80, 111, 0, 100 ],
... [ 8, 12.31, 3.87, 147, 0, 100 ],
... [ 9, 13.88, 14.29, 330, 0, 100 ],
... [ 10, 15.47, 22.49, 271, 0, 100 ]],
... 500
... )
'1\\x1f154\\x1f138\\x1f290\\x1f0\\x1f100\\x1e2\\x1f271\\x1f301\\x1f155\\x1f0\\x1f100\\x1e3\\x1f225\\x1f439\\x1f224\\x1f0\\x1f100\\x1e4\\x1f445\\x1f495\\x1f194\\x1f0\\x1f100\\x1e5\\x1f137\\x1f166\\x1f153\\x1f0\\x1f100\\x1e6\\x1f247\\x1f391\\x1f346\\x1f0\\x1f100\\x1e7\\x1f387\\x1f389\\x1f111\\x1f0\\x1f100\\x1e8\\x1f242\\x1f76\\x1f147\\x1f0\\x1f100\\x1e9\\x1f273\\x1f281\\x1f330\\x1f0\\x1f100\\x1e10\\x1f304\\x1f442\\x1f271\\x1f0\\x1f100'
"""
if float in map( type, flatten( lst ) ) or res:
lst = [
[ id, mm2px( x , res ), mm2px( y, res ), theta, q, d ]
for id, x, y, theta, q, d in lst
]
lst = map_r( int, lst )
return join_r( [ US, RS ], lst )