def __init__(self, args):
self.args = args
with open(os.path.join(args.model_dir, args.log_name)) as the_log:
log_data = json.load(the_log)[0]
self.target_shape = Size._make(log_data['target_size'])
self.image_size = Size._make(log_data['image_size'])
# Step 1: build network
localization_net_class_name, localization_module_name = self.get_class_and_module(log_data['localization_net'])
module = self.load_module(os.path.abspath(os.path.join(args.model_dir, localization_module_name)))
localization_net_class = eval('module.{}'.format(localization_net_class_name))
localization_net = self.build_localization_net(localization_net_class)
recognition_net_class_name, recognition_module_name = self.get_class_and_module(log_data['recognition_net'])
module = self.load_module(os.path.abspath(os.path.join(args.model_dir, recognition_module_name)))
recognition_net_class = eval('module.{}'.format(recognition_net_class_name))
recognition_net = self.build_recognition_net(recognition_net_class)
fusion_net_class_name, fusion_module_name = self.get_class_and_module(log_data['fusion_net'])
module = self.load_module(os.path.abspath(os.path.join(args.model_dir, fusion_module_name)))
fusion_net_class = eval('module.{}'.format(fusion_net_class_name))
self.net = self.build_fusion_net(fusion_net_class, localization_net, recognition_net)
if args.gpu >= 0:
self.net.to_gpu(args.gpu)
# Step 2: load weights
with np.load(os.path.join(args.model_dir, args.snapshot_name)) as f:
chainer.serializers.NpzDeserializer(f).load(self.net)
# Step 3: open gt and do evaluation
with open(args.char_map) as the_map:
self.char_map = json.load(the_map)
self.xp = chainer.cuda.cupy if args.gpu >= 0 else np
with open(args.eval_gt) as eval_gt:
reader = csv.reader(eval_gt, delimiter='\t')
self.lines = [l for l in reader]
self.blank_symbol = args.blank_symbol
self.num_correct_lines = 0
self.num_correct_words = 0
self.num_lines = 0
self.num_words = 0
self.num_word_x_correct = [0 for _ in range(args.timesteps)]
self.num_word_x = [0 for _ in range(args.timesteps)]
self.model_dir = args.model_dir
self.metrics = self.create_metrics()
self.save_rois = args.save_rois
self.bbox_plotter = None
if self.save_rois:
self.create_bbox_plotter()
def __init__(self,
gt_file,
image_size,
root='.',
dtype=None,
transform_probability=0,
image_mode='L',
keep_aspect_ratio=False,
resize_after_load=True):
_check_pillow_availability()
assert isinstance(gt_file,
six.string_types), "paths must be a file name!"
assert os.path.splitext(gt_file)[
-1] == ".json", "You have to supply gt information as json file!"
if not isinstance(image_size, Size):
image_size = Size(*image_size)
with open(gt_file) as handle:
self.gt_data = json.load(handle)
self.root = root
self.dtype = chainer.get_dtype(dtype)
self.image_size = image_size
self.transform_probability = transform_probability
self.keep_aspect_ratio = keep_aspect_ratio
self.resize_after_load = resize_after_load
self.image_mode = image_mode
self.augmentations = self.init_augmentations()
def draw_bbox(self, bboxes, output_size, target_size, draw, colour):
bboxes = np.squeeze(bboxes)
bboxes = (bboxes + 1) / 2
single_image_target_size = Size(width=target_size.width // 4,
height=target_size.height)
bboxes[:, 0] *= single_image_target_size.width
bboxes[:, 1] *= single_image_target_size.height
for idx, bbox in enumerate(np.split(bboxes, len(bboxes), axis=0)):
bbox = np.squeeze(bbox, axis=0)
x = np.clip(bbox[0].reshape(output_size.height, output_size.width),
0, single_image_target_size.width)
y = np.clip(bbox[1].reshape(output_size.height, output_size.width),
0, single_image_target_size.height)
x += idx * single_image_target_size.width
top_left = (x[0, 0], y[0, 0])
top_right = (x[0, -1], y[0, -1])
bottom_left = (x[-1, 0], y[-1, 0])
bottom_right = (x[-1, -1], y[-1, -1])
draw.polygon(
[top_left, top_right, bottom_right, bottom_left],
outline=colour,
)
def create_sliding_window(self, image):
loaded_size = Size(*image.shape[-2:])
windows_at_width, width_overlap = self.get_num_windows_and_overlap(
loaded_size.width, self.image_size.width)
windows_at_height, height_overlap = self.get_num_windows_and_overlap(
loaded_size.height, self.image_size.height)
bboxes = []
crops = []
for j in range(windows_at_height):
for i in range(windows_at_width):
bbox = AxisAlignedBBox(
left=i * self.image_size.width - i * width_overlap,
top=j * self.image_size.height - j * height_overlap,
right=(i + 1) * self.image_size.width - i * width_overlap,
bottom=(j + 1) * self.image_size.height -
j * height_overlap,
)
bboxes.append(bbox)
window = image[:, bbox.top:bbox.bottom, bbox.left:bbox.right]
if self.binarize_windows:
window = self.binarize_image(window)
crops.append(window)
return numpy.stack(crops, axis=0), bboxes
def __init__(self, *args, **kwargs):
kwargs['resize_after_load'] = False
kwargs['transform_probability'] = 0
image_size = kwargs.pop('image_size')
if not isinstance(image_size, Size):
image_size = Size(*image_size)
self.max_size = kwargs.pop('max_size')
self.image_size = image_size
self.binarize_windows = kwargs.pop('binarize_windows', False)
self.threshold_method = kwargs.pop('threshold_method', 'otsu')
super().__init__()
def resize_image(self, image):
loaded_size = Size(*image.shape[-2:])
if all(
x < self.max_size for x in loaded_size
) and loaded_size.width > self.image_size.width and loaded_size.height > self.image_size.height:
return image
if loaded_size.width > loaded_size.height:
aspect_ratio = loaded_size.height / loaded_size.width
new_size = Size(height=max(int(self.max_size * aspect_ratio),
self.image_size.height),
width=self.max_size)
else:
aspect_ratio = loaded_size.width / loaded_size.height
new_size = Size(height=self.max_size,
width=max(int(self.max_size * aspect_ratio),
self.image_size.width))
image = image.transpose(1, 2, 0)
image = cv2.resize(image, (new_size.width, new_size.height),
interpolation=cv2.INTER_AREA)
image = image.transpose(2, 0, 1)
return image
def __init__(self, image, out_dir, out_size, loss_metrics, **kwargs):
super(BBOXPlotter, self).__init__()
self.image = image
self.render_extracted_rois = kwargs.pop("render_extracted_rois", True)
self.image_size = Size(height=image.shape[1], width=image.shape[2])
self.out_dir = out_dir
os.makedirs(self.out_dir, exist_ok=True)
self.out_size = out_size
self.colours = COLOR_MAP
self.send_bboxes = kwargs.pop("send_bboxes", False)
self.upstream_ip = kwargs.pop("upstream_ip", '127.0.0.1')
self.upstream_port = kwargs.pop("upstream_port", 1337)
self.loss_metrics = loss_metrics
self.font = ImageFont.truetype("utils/DejaVuSans.ttf", 20)
self.visualization_anchors = kwargs.pop("visualization_anchors", [])
self.visual_backprop = VisualBackprop()
self.xp = np
parser.add_argument("--load-recognition", action='store_true', default=False, help="only load recognition net")
parser.add_argument("--is-trainer-snapshot", action='store_true', default=False,
help="indicate that snapshot to load has been saved by trainer itself")
parser.add_argument("--no-log", action='store_false', default=True, help="disable logging")
parser.add_argument("--freeze-localization", action='store_true', default=False,
help='freeze weights of localization net')
parser.add_argument("--zoom", type=float, default=0.9, help="Zoom for initial bias of spatial transformer")
parser.add_argument("--optimize-all-interval", type=int, default=5,
help="interval in which to optimize the whole network instead of only a part")
parser.add_argument("--use-dropout", action='store_true', default=False, help='use dropout in network')
parser.add_argument("--test-image", help='path to an image that should be used by BBoxPlotter')
parser = add_default_arguments(parser)
args = parser.parse_args()
args.is_original_fsns = True
image_size = Size(width=150, height=150)
target_shape = Size(width=100, height=75)
# attributes that need to be adjusted, once the Curriculum decides to use
# a more difficult dataset
# this is a 'map' of attribute name to a path in the trainer object
attributes_to_adjust = [
('num_timesteps', ['predictor', 'localization_net']),
('num_timesteps', ['predictor', 'recognition_net']),
('num_timesteps', ['lossfun', '__self__']),
('num_labels', ['predictor', 'recognition_net']),
]
# create train curriculum
curriculum = BabyStepCurriculum(
args.dataset_specification,
def save_extracted_regions(self,
input,
regions,
transform_params,
iteration,
labels,
gt_bboxes=None,
extra_transform_params=None,
extra_interpolated_areas=None):
sampling_grids = get_sampling_grid(transform_params, self.output_size)
if extra_transform_params is not None:
extra_size = Size(width=self.output_size.width // 2,
height=self.output_size.height // 2)
extra_sampling_grids = get_sampling_grid(
extra_transform_params,
extra_size,
)
else:
extra_sampling_grids = np.zeros_like(sampling_grids)
extra_interpolated_areas = np.zeros_like(sampling_grids)
if self.plot_individual_regions or iteration % 1000 == 0:
dest_image_size = ((len(regions) + 1) * self.image_size.width,
self.image_size.height
if not self.plot_extra_loc else 2 *
self.image_size.height)
else:
dest_image_size = (self.image_size.width, self.image_size.height)
dest_image = Image.new('RGB', dest_image_size)
image = self.create_image_from_array(input, resize=False)
draw = ImageDraw.Draw(image)
data_iter = zip(
np.split(regions, len(regions)),
np.split(sampling_grids, len(sampling_grids)),
np.split(extra_sampling_grids, len(extra_sampling_grids)),
np.split(extra_interpolated_areas, len(extra_interpolated_areas)),
COLOR_MAP,
)
for idx, (region, bbox, extra_bbox, extra_region,
colour) in enumerate(data_iter, start=1):
# show each individual region if the user wants it or after every 1000 iterations for debugging purposes
if self.plot_individual_regions or iteration % 1000 == 0:
region_image = self.create_image_from_array(region)
if self.plot_extra_loc:
region_draw = ImageDraw.Draw(region_image)
self.draw_bbox(extra_bbox, extra_size, self.image_size,
region_draw, colour)
extra_region_image = self.create_image_from_array(
extra_region)
dest_image.paste(
extra_region_image,
(idx * self.image_size.width, self.image_size.height))
dest_image.paste(region_image,
(idx * self.image_size.width, 0))
# draw bbox
self.draw_bbox(bbox, self.output_size, self.image_size, draw,
colour)
if gt_bboxes is not None:
for gt_bbox, colour in zip(np.split(gt_bboxes, len(gt_bboxes)),
reversed(COLOR_MAP)):
gt_bbox = np.squeeze(gt_bbox, axis=0)
top_left = (gt_bbox[0], gt_bbox[2])
top_right = (gt_bbox[0] + gt_bbox[1], gt_bbox[2])
bottom_left = (gt_bbox[0], gt_bbox[2] + gt_bbox[3])
bottom_right = (gt_bbox[0] + gt_bbox[1],
gt_bbox[2] + gt_bbox[3])
draw.polygon(
[top_left, top_right, bottom_right, bottom_left],
outline=colour,
)
if self.show_labels:
# only keep ascii characters
# labels = ''.join(filter(lambda x: len(x) == len(x.encode()), labels))
text_width, text_height = draw.textsize(labels, font=self.font)
draw = ImageDraw.Draw(dest_image)
draw.text((dest_image.width - text_width - 1, 0),
labels,
fill='green',
font=self.font)
dest_image.paste(image, (0, 0))
if self.save_labels:
file_name = "{}_{}.png".format(
os.path.join(self.bbox_dir, str(iteration)), labels)
else:
file_name = "{}.png".format(
os.path.join(self.bbox_dir, str(iteration)))
dest_image.save(file_name)
if self.send_bboxes:
self.send_image(dest_image)
action='store_true',
default=False,
help="indicate that you do not want to use the multi process iterator")
parser.add_argument("--refinement",
action='store_true',
default=False,
help='enable param refinement with IC-STN')
parser.add_argument(
"--render-all-bboxes",
action='store_true',
default=False,
help="bbox plotter also renders all intermediate bboxes")
parser = add_default_arguments(parser)
args = parser.parse_args()
image_size = Size(width=200, height=64)
target_shape = Size(width=50, height=50)
# attributes that need to be adjusted, once the Curriculum decides to use
# a more difficult dataset
# this is a 'map' of attribute name to path in trainer object
attributes_to_adjust = [
('num_timesteps', ['predictor', 'localization_net']),
('num_timesteps', ['predictor', 'recognition_net']),
('num_timesteps', ['lossfun', '__self__']),
('num_labels', ['predictor', 'recognition_net']),
]
curriculum = BabyStepCurriculum(args.dataset_specification,
TextRecFileDataset,
args.blank_label,
default=5,
help="number of timesteps the GRU shall run [default: 5]")
parser.add_argument(
"--alternative",
action="store_true",
default=False,
help="use alternative implementation of spatial Transformers")
parser.add_argument("-ds",
dest='downsample_factor',
type=int,
default=2,
help="downsample for image sampler")
parser = add_default_arguments(parser)
args = parser.parse_args()
image_size = Size(width=200, height=200)
localization_net = MNISTLocalizationNet(args.dropout_ratio, args.timesteps)
recognition_net = MNISTRecognitionNet(
image_size,
args.dropout_ratio,
downsample_factor=args.downsample_factor,
use_alternative=args.alternative)
net = MNISTNet(localization_net, recognition_net)
model = Classifier(net, ('accuracy', ),
lossfun=mnist_loss,
accfun=mnist_accuracy)
if args.gpu >= 0:
cuda.get_device(args.gpu).use()
model.to_gpu()
args = parser.parse_args()
# set standard args that should always hold true if using the supplied model
args.is_original_fsns = True
args.log_name = 'log'
args.dropout_ratio = 0.5
args.blank_symbol = 0
# max number of text regions in the image
args.timesteps = 4
# max number of characters per word
args.num_labels = 21
# open log and extract meta information
with open(os.path.join(args.model_dir, args.log_name)) as the_log:
log_data = json.load(the_log)[0]
target_shape = Size._make(log_data['target_size'])
image_size = Size._make(log_data['image_size'])
xp = chainer.cuda.cupy if args.gpu >= 0 else np
network = create_network(args, log_data)
# load weights
with np.load(os.path.join(args.model_dir, args.snapshot_name)) as f:
chainer.serializers.NpzDeserializer(f).load(network)
# load char map
with open(args.char_map) as the_map:
char_map = json.load(the_map)
# load image
image = load_image(args.image_path, xp)
help='plot bbox predictions and extracted regions')
parser.add_argument(
'--save-predictions',
help='path to csv file where predictions shall be saved for later use')
args = parser.parse_args()
with open(args.char_map) as char_map_file:
char_map = json.load(char_map_file)
reverse_char_map = {v: k for k, v in char_map.items()}
args.input_height = 150
args.input_width = 600
data_shape = (1, 4, 3, args.input_height, args.input_width // 4)
input_size = Size(width=data_shape[-1], height=data_shape[-2])
output_size = Size(width=75, height=50)
model = get_model(args, data_shape, output_size)
bbox_plotter = None
if args.plot:
bbox_plotter = FSNSBBOXPlotter(
input_size,
output_size,
os.path.dirname(os.path.dirname(args.model_prefix)),
bbox_dir='eval_bboxes',
show_labels=True,
label_map=args.char_map,
blank_label=args.blank_label,
plot_extra_loc=False,
if __name__ == '__main__':
parser = utils.parse_args()
args = parser.parse_args()
if args.send_bboxes and args.ip is None:
parser.print_usage()
raise ValueError(
"You must specify an upstream ip if you want to send the bboxes of each iteration"
)
time = datetime.datetime.now().isoformat()
args.log_dir = os.path.join(args.log_dir,
"{}_{}".format(time, args.log_name))
args.log_file = os.path.join(args.log_dir, 'log')
image_size = Size(width=600, height=150)
source_shape = (args.batch_size, 4, 1, image_size.height, image_size.width)
target_shape = Size(width=75, height=50)
num_timesteps = 3
labels_per_timestep = 10
values_per_bbox = 0
num_rnn_layers = 1
label_width = 37
label_width = num_timesteps * labels_per_timestep
use_blstm = True
save_attention = False
eval_metric = mx.metric.CompositeEvalMetric(metrics=[
STNAccuracy(make_label_time_major=True),
STNCrossEntropy(make_label_time_major=True),
])
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.image_size = Size(height=self.image.shape[1],
width=self.image.shape[2] // 4)
action='store_true',
default=False,
help='plot bbox predictions and extracted regions')
parser.add_argument(
'--save-predictions',
help='path to csv file where predictions shall be saved for later use')
args = parser.parse_args()
with open(args.char_map) as char_map_file:
char_map = json.load(char_map_file)
reverse_char_map = {v: k for k, v in char_map.items()}
data_shape = (1, 1, args.input_height, args.input_width)
input_size = Size(width=data_shape[-1], height=data_shape[-2])
output_size = Size(width=40, height=40)
model = get_model(args, data_shape, output_size)
bbox_plotter = None
if args.plot:
bbox_plotter = BBOXPlotter(
input_size,
output_size,
os.path.dirname(os.path.dirname(args.model_prefix)),
bbox_dir='eval_bboxes',
show_labels=True,
label_map=args.char_map,
blank_label=args.blank_label,
)
