#!/usr/bin/env python
# vim: set fileencoding=utf-8 :
""" The Replay-Mobile Database for face spoofing implementation of
bob.bio.base.database.BioDatabase interface."""
from .database import FaceBioFile
from bob.bio.base.database import BioDatabase
class ReplayMobileBioFile(FaceBioFile):
"""FaceBioFile implementation of the Replay Mobile Database"""
def __init__(self, f):
super(ReplayMobileBioFile, self).__init__(client_id=f.client_id, path=f.path, file_id=f.id)
self._f = f
def load(self, directory=None, extension=None):
if extension in (None, '.mov'):
return self._f.load(directory, extension)
else:
return super(ReplayMobileBioFile, self).load(directory, extension)
class ReplayMobileBioDatabase(BioDatabase):
"""
ReplayMobile database implementation of :py:class:`bob.bio.base.database.BioDatabase` interface.
It is an extension of an SQL-based database interface, which directly talks to ReplayMobile database, for
verification experiments (good to use in bob.bio.base framework).
"""
def __init__(self, max_number_of_frames=None, **kwargs):
# call base class constructors to open a session to the database
super(ReplayMobileBioDatabase, self).__init__(
name='replay-mobile',
max_number_of_frames=max_number_of_frames, **kwargs)
from bob.db.replaymobile.verificationprotocol import Database as LowLevelDatabase
self._db = LowLevelDatabase(max_number_of_frames)
[docs] def protocol_names(self):
return self._db.protocols()
[docs] def groups(self):
return self._db.groups()
[docs] def annotations(self, myfile):
"""Will return the bounding box annotation of nth frame of the video."""
fn = myfile._f.framen
annots = myfile._f._f.bbx(directory=self.original_directory)
# convert width and height to bottomright coordinates
# bob uses the (y, x) format
topleft = (annots[fn][1], annots[fn][0])
bottomright = (annots[fn][1] + annots[fn][3], annots[fn][0] + annots[fn][2])
annotations = {'topleft': topleft, 'bottomright': bottomright}
return annotations
[docs] def model_ids_with_protocol(self, groups=None, protocol=None, **kwargs):
return self._db.model_ids_with_protocol(groups, protocol, **kwargs)
[docs] def objects(self, groups=None, protocol=None, purposes=None, model_ids=None, **kwargs):
return [ReplayMobileBioFile(f) for f in self._db.objects(groups, protocol, purposes, model_ids, **kwargs)]
[docs] def arrange_by_client(self, files):
client_files = {}
for file in files:
if str(file.client_id) not in client_files:
client_files[str(file.client_id)] = []
client_files[str(file.client_id)].append(file)
files_by_clients = []
for client in sorted(client_files.keys()):
files_by_clients.append(client_files[client])
return files_by_clients