def image(input_image_path, display, gradcam, output_csv_file, screen_size, device, branch, face_detection):
"""
Receives the full path to a image file and recognizes
facial expressions of the closets face in a frame-based approach.
TODO: Write docstring
:param input_image_path:
:param display:
:param gradcam:
:param output_csv_file:
:param screen_size:
:param device:
:param branch:
:return:
"""
image = uimage.read(input_image_path)
# Call FER method
fer = cvision.recognize_facial_expression(image, device, face_detection, gradcam)
# TODO: Implement
if output_csv_file:
pass
if display:
fer_demo = FERDemo(screen_size=screen_size, display_individual_classification=branch, display_graph_ensemble=False)
fer_demo.update(fer)
while fer_demo.is_running():
fer_demo.show()
fer_demo.quit()
return fer
def image(input_image_path, display, gradcam, output_csv_file, screen_size,
device, branch, face_detection):
"""
Receives the full path to a image file and recognizes
facial expressions of the closets face in a frame-based approach.
"""
write_to_file = not (output_csv_file is None)
img = uimage.read(input_image_path)
# Call FER method
fer = cvision.recognize_facial_expression(img, device, face_detection,
gradcam)
if write_to_file:
ufile.create_file(output_csv_file, input_image_path)
ufile.write_to_file(fer, 0.0)
ufile.close_file()
if display:
fer_demo = FERDemo(screen_size=screen_size,
display_individual_classification=branch,
display_graph_ensemble=False)
fer_demo.update(fer)
while fer_demo.is_running():
fer_demo.show()
fer_demo.quit()
def _load(self):
data_affect_net, labels_affect_net = [], []
counter_loaded_images_per_label = [0 for _ in range(self.num_labels)]
if self.idx_set == 0:
path_folders_affect_net = path.join(
self.base_path_to_affectnet, self.affectnet_sets['supervised'])
elif self.idx_set == 1:
path_folders_affect_net = path.join(
self.base_path_to_affectnet,
self.affectnet_sets['unsupervised'])
else:
path_folders_affect_net = path.join(
self.base_path_to_affectnet, self.affectnet_sets['validation'])
folders_affect_net = sort_numeric_directories(
listdir(path_folders_affect_net))
# Randomize folders
if self.idx_set < 2:
np.random.shuffle(folders_affect_net)
for f_af in folders_affect_net:
path_images_affect_net = path.join(path_folders_affect_net, f_af)
images_affect_net = np.sort(
np.array(listdir(path_images_affect_net)))
# Randomize images
if self.idx_set < 2:
np.random.shuffle(images_affect_net)
for file_name_image_affect_net in images_affect_net:
valence, arousal, quadrant = self._parse_to_label(
file_name_image_affect_net)
if (quadrant >=
0) and (counter_loaded_images_per_label[int(quadrant)]
< self.max_loaded_images_per_label):
img = np.array(
uimage.read(
path.join(path_images_affect_net,
file_name_image_affect_net)), np.uint8)
data_affect_net.append(img)
labels_affect_net.append(
[np.float32(valence),
np.float32(arousal)])
counter_loaded_images_per_label[int(quadrant)] += 1
has_loading_finished = (
np.sum(counter_loaded_images_per_label) >=
(self.max_loaded_images_per_label * self.num_labels))
if has_loading_finished:
break
if has_loading_finished:
break
return [np.array(data_affect_net), np.array(labels_affect_net)]
def pre_process_affect_net(base_path_to_images, base_path_to_annotations,
set_index):
"""
Pre-process the AffectNet dataset. Faces are cropped and resized to 96 x 96 pixels.
The images are organized in folders with 500 images each. The test set had not been released
when this experiment was carried out.
:param base_path_to_images: (string) Path to images.
:param base_path_to_annotations: (string) Path to annotations.
:param set_index: (int = {0, 1, 2}) set_index = 0 process the automatically annotated images.
set_index = 1 process the manually annotated images: training set.
set_index = 2 process the manually annotated images: validation set.
:return: (void)
"""
assert ((set_index < 3)
and (set_index >= 0)), "set_index must be 0, 1 or 2."
annotation_folders = [
'Automatically_Annotated_Images/', 'Manually_Annotated_Images/',
'Manually_Annotated_Images/'
]
destination_set_folders = [
'AffectNet/Training_Unlabeled/', 'AffectNet/Training_Labeled/',
'AffectNet/Validation/'
]
annotation_file_names = [
'automatically_annotated.csv', 'Manually_training.csv',
'Manually_validation.csv'
]
image_id = 0
error_image_id = []
img_size = (96, 96)
num_images_per_folder = 500
annotation_file = pandas.read_csv(
path.join(base_path_to_annotations, annotation_file_names[set_index]))
for line in range(image_id, annotation_file.shape[0]):
try:
# Read image
img_file_name = annotation_file.get('subDirectory_filePath')[line]
img_full_path = path.join(base_path_to_images,
annotation_folders[set_index],
img_file_name)
img = uimage.read(img_full_path)
# Crop face
x = int(annotation_file.get('face_x')[line])
y = int(annotation_file.get('face_y')[line])
w = int(annotation_file.get('face_width')[line])
h = int(annotation_file.get('face_height')[line])
img = img[x:x + w, y:y + h, :]
# Resize image
img = uimage.resize(img, img_size)
# Save image
folder = str(image_id // num_images_per_folder)
exp = annotation_file.get('expression')[line]
val = annotation_file.get('valence')[line]
aro = annotation_file.get('arousal')[line]
file_name = _generate_single_file_name(image_id, exp, val, aro)
uimage.write(
img,
path.join(base_path_to_images,
destination_set_folders[set_index], folder),
file_name)
image_id += 1
except Exception:
print('ERROR: The image ID %d is corrupted.' % image_id)
error_image_id.append(image_id)
print('Dataset has been processed.')
print('Images successfully processed: %d' %
(image_id - len(error_image_id)))
print('Images processed with error: %d' % len(error_image_id))
print('Image IDs processed with error: %s' % error_image_id)
def _load(self):
csv_label = []
data, labels = [], []
counter_loaded_images_per_label = [0 for _ in range(self.num_labels)]
path_folders_images = path.join(self.base_path_to_FER_plus, 'Images',
self.fer_sets[self.idx_set])
path_folders_labels = path.join(self.base_path_to_FER_plus, 'Labels',
self.fer_sets[self.idx_set])
with open(path_folders_labels + '/label.csv') as csvfile:
lines = csv.reader(csvfile)
for row in lines:
csv_label.append(row)
# Shuffle training set
if self.idx_set == 0:
np.random.shuffle(csv_label)
for l in csv_label:
emotion_raw = list(map(float, l[2:len(l)]))
emotion = self._process_data(emotion_raw)
emotion = emotion[:-2]
try:
emotion = [float(i) / sum(emotion) for i in emotion]
emotion = self._parse_to_label(emotion)
except ZeroDivisionError:
emotion = 9
if (emotion < self.num_labels) and (
counter_loaded_images_per_label[int(emotion)] <
self.max_loaded_images_per_label):
counter_loaded_images_per_label[int(emotion)] += 1
img = np.array(
uimage.read(path.join(path_folders_images, l[0])),
np.uint8)
box = list(map(int, l[1][1:-1].split(',')))
if box[-1] != 48:
print("[INFO] Face is not centralized.")
print(path.join(path_folders_images, l[0]))
print(box)
exit(-1)
img = img[box[0]:box[2], box[1]:box[3], :]
img = uimage.resize(img, (96, 96))
data.append(img)
labels.append(emotion)
has_loading_finished = (
np.sum(counter_loaded_images_per_label) >=
(self.max_loaded_images_per_label * self.num_labels))
if has_loading_finished:
break
return [np.array(data), np.array(labels)]
