def get_faces_with_ids(path_to_db, verbose=False):
face_id_multiple_pattern = re.compile(".+[1-9]+\.[a-z]{3}")
faces = []
for root, dirs, _ in os.walk(path_to_db):
for dir in dirs:
path_to_subject = os.path.join(path_to_db, dir)
for _, _, imgs in os.walk(path_to_subject):
for img_file in imgs:
if verbose:
print('Processing subject {} => {}'.format(
dir, img_file))
if face_id_multiple_pattern.match(img_file) is not None:
continue
try:
face = Face.from_image_path_with_id(
os.path.join(path_to_subject, img_file), dir)
except Exception as e:
face = None
if verbose:
print(e.message)
if face is not None:
faces.append(face)
break
break
return faces
def get_faces_with_ids(path_to_db, verbose=False):
face_id_multiple_pattern = re.compile(".+[1-9]+\.[a-z]{3}")
faces = []
identities = 0
faces_per_identity = []
for root, dirs, _ in os.walk(path_to_db):
for dir in dirs:
path_to_subject = os.path.join(path_to_db, dir)
# we sample the data so that we take 30 photos from 3% of the faces in an random way so that the
# distribution it is kept
if random.random() <= 0.96:
continue
identities += 1
faces_taken = 0
for _, _, imgs in os.walk(path_to_subject):
for img_file in imgs:
if random.random() > 0.3:
continue
faces_taken += 1
if verbose:
print("Processing subject {} => {}".format(dir, img_file))
if face_id_multiple_pattern.match(img_file) is not None:
continue
try:
face = Face.from_image_path_with_id(
os.path.join(path_to_subject, img_file), dir
)
except Exception as e:
face = None
if verbose:
print(e.message)
if face is not None:
faces.append(face)
break
faces_per_identity.append(faces_taken)
break
print("We randomly selected " + str(identities))
print(
"With an average of faces per identity of: "
+ str(sum(faces_per_identity) / len(faces_per_identity))
)
print("With same identity faces {}".format(sum(faces_per_identity)))
perechi_fete_identice = 0
for i in range(len(faces_per_identity)):
perechi_fete_identice += faces_per_identity[i] * (faces_per_identity[i] - 1) / 2
print("Number of pairs same identity {}".format(perechi_fete_identice))
print("Number of faces {}".format(len(faces_per_identity)))
print(faces_per_identity)
print("Totalling {}".format(len(faces)))
return faces
