def get_dataset_info_pascal(image_dir, anno_dir, img_to_anno=None, split=None):
images = find_images(image_dir)
info_images = []
info_annotations = []
image_num = 0
anno_num = 0
image_paths = []
images_ids = []
for curr_image_path in tqdm.tqdm(images):
if img_to_anno is not None:
curr_anno_name = img_to_anno(fileName(curr_image_path))
else:
curr_anno_name = fileName(curr_image_path)
curr_anno_path = os.path.join(anno_dir, curr_anno_name + '.xml')
if os.path.isfile(curr_anno_path):
image_paths.append(curr_image_path)
images_ids.append(image_num)
file = ET.parse(curr_anno_path)
curr_anno_info = []
for anno in file.iter('object'):
curr_anno_info.append(
give_anno_info_pascal_coco(anno, image_num, anno_num))
anno_num += 1
image_num += 1
info_annotations.append(curr_anno_info)
if len(image_paths) == _PARALLEL_READS:
with ThreadPoolExecutor() as executer:
results = executer.map(give_image_info_coco, image_paths,
images_ids)
info_images.extend(results)
image_paths = []
images_ids = []
if len(image_paths) > 0:
with ThreadPoolExecutor() as executer:
results = executer.map(give_image_info_coco, image_paths,
images_ids)
info_images.extend(results)
image_paths = []
images_ids = []
image_with_anno = list(zip(info_images, info_annotations))
random.shuffle(image_with_anno)
return make_coco_dataset(image_with_anno, split)
def get_datapoint_yolo(image_path, anno_path, _CLASSES):
dataset_info = {
'image_name': [],
'image_hash': [],
'image_width': [],
'image_height': [],
'xmin': [],
'ymin': [],
'xmax': [],
'ymax': [],
'label_name': []
}
file = open(anno_path)
num_annos = 0
with Image.open(image_path) as im:
image_shape = im.size
_hash = hashFile(image_path)
if anno_path is not None:
for anno in file:
anno = anno.split(' ')
anno[0] = int(anno[0])
anno[1] = float(anno[1])
anno[2] = float(anno[2])
anno[3] = float(anno[3])
anno[4] = float(anno[4])
label = anno[0]
xmin = image_shape[0] * (anno[1] - anno[3] / 2.0)
ymin = image_shape[1] * (anno[2] - anno[4] / 2.0)
xmax = image_shape[0] * (anno[1] + anno[3] / 2.0)
ymax = image_shape[1] * (anno[2] + anno[4] / 2.0)
dataset_info['xmin'].append(xmin)
dataset_info['ymin'].append(ymin)
dataset_info['xmax'].append(xmax)
dataset_info['ymax'].append(ymax)
if len(_CLASSES) != 0:
dataset_info['label_name'].append(_CLASSES[label])
else:
dataset_info['label_name'].append(label)
num_annos += 1
else:
num_annos = 1
dataset_info['xmin'].append(-1.0)
dataset_info['ymin'].append(-1.0)
dataset_info['xmax'].append(-1.0)
dataset_info['ymax'].append(-1.0)
dataset_info['label_name'].append('background_empty')
dataset_info['image_name'].extend(
repeat(fileName(image_path, ext=True), num_annos))
dataset_info['image_width'].extend(repeat(image_shape[0], num_annos))
dataset_info['image_height'].extend(repeat(image_shape[1], num_annos))
dataset_info['image_hash'].extend(repeat(_hash, num_annos))
return dataset_info
def get_datapoint_pascal(image_path, anno_path):
dataset_info = {
'image_name': [],
'image_hash': [],
'image_width': [],
'image_height': [],
'xmin': [],
'ymin': [],
'xmax': [],
'ymax': [],
'label_name': []
}
num_annos = 0
_hash = hashFile(image_path)
with Image.open(image_path) as im:
image_shape = im.size
if anno_path is not None:
file = ET.parse(anno_path)
for anno in file.iter('object'):
dataset_info['xmin'].append(
float(anno.find('bndbox').find('xmin').text))
dataset_info['ymin'].append(
float(anno.find('bndbox').find('ymin').text))
dataset_info['xmax'].append(
float(anno.find('bndbox').find('xmax').text))
dataset_info['ymax'].append(
float(anno.find('bndbox').find('ymax').text))
dataset_info['label_name'].append(anno.find('name').text)
num_annos += 1
else:
num_annos = 1
dataset_info['xmin'].append(-1.0)
dataset_info['ymin'].append(-1.0)
dataset_info['xmax'].append(-1.0)
dataset_info['ymax'].append(-1.0)
dataset_info['label_name'].append('background_empty')
dataset_info['image_name'].extend(
repeat(fileName(image_path, ext=True), num_annos))
dataset_info['image_width'].extend(repeat(image_shape[0], num_annos))
dataset_info['image_height'].extend(repeat(image_shape[1], num_annos))
dataset_info['image_hash'].extend(repeat(_hash, num_annos))
return dataset_info
def get_dataset_info_yolo(image_dir, anno_dir, img_to_anno=None, split=None):
images = find_images(image_dir)
info_images = []
info_annotations = []
image_num = 0
anno_num = 0
image_paths = []
images_ids = []
for curr_image_path in tqdm.tqdm(images):
image_name = fileName(curr_image_path)
if img_to_anno is not None:
curr_anno_name = img_to_anno(image_name)
else:
curr_anno_name = image_name
curr_anno_path = os.path.join(anno_dir, curr_anno_name + '.txt')
if os.path.isfile(curr_anno_path):
image_paths.append(curr_image_path)
images_ids.append(image_num)
info_annotations.append(
give_anno_info_batch_yolo_coco(curr_anno_path, curr_image_path,
image_num, anno_num))
anno_num += len(info_annotations[-1])
image_num += 1
if len(image_paths) == _PARALLEL_READS:
with ThreadPoolExecutor() as executer:
results = executer.map(give_image_info_coco, image_paths,
images_ids)
info_images.extend(results)
image_paths = []
images_ids = []
if len(image_paths) > 0:
with ThreadPoolExecutor() as executer:
results = executer.map(give_image_info_coco, image_paths,
images_ids)
info_images.extend(results)
image_paths = []
images_ids = []
image_with_anno = list(zip(info_images, info_annotations))
# random.shuffle(image_with_anno)
return make_coco_dataset(image_with_anno, split)
def give_image_info_coco(
image_path,
image_id,
date_captured=datetime.datetime.utcnow().isoformat(' '),
license_id=1,
coco_url='',
flickr_url=''):
with Image.open(image_path) as im:
image_size = im.size
return {
'id': image_id,
'file_name': fileName(image_path, ext=True),
'width': image_size[0],
'height': image_size[1],
'date_captured': date_captured,
'license': license_id,
'coco_url': coco_url,
'flickr_url': flickr_url,
'segmind_image_hash': hashFile(image_path)
}
def get_dataset_info_yolo(image_dir,
anno_dir,
names_file=None,
img_to_anno=None,
start_id=0,
split=None,
train_only=True,
*args,
**kwargs):
_CLASSES = []
if names_file is not None:
with open(names_file) as file:
_CLASSES = [x[:-1] for x in file]
images = find_images(image_dir)
dataset_info = {
'image_id': [],
'image_name': [],
'image_hash': [],
'image_width': [],
'image_height': [],
'xmin': [],
'ymin': [],
'xmax': [],
'ymax': [],
'label_name': [],
'train_only': []
}
image_paths = []
anno_paths = []
subset = 'Test'
if train_only:
subset = 'Training'
print(f'\nProcessing {subset} Dataset')
for curr_image_path in tqdm.tqdm(images, ncols=100):
if img_to_anno is not None:
curr_anno_name = img_to_anno(fileName(curr_image_path))
else:
curr_anno_name = fileName(curr_image_path)
curr_anno_path = os.path.join(anno_dir, curr_anno_name + '.txt')
image_paths.append(curr_image_path)
if os.path.isfile(curr_anno_path):
anno_paths.append(curr_anno_path)
else:
anno_paths.append(None)
if len(image_paths) == _PARALLEL_READS:
with ThreadPoolExecutor() as executer:
results = executer.map(get_datapoint_yolo, image_paths,
anno_paths, repeat(_CLASSES))
map_result_to_data(results, dataset_info)
image_paths = []
anno_paths = []
if len(image_paths) > 0:
with ThreadPoolExecutor() as executer:
results = executer.map(get_datapoint_yolo, image_paths, anno_paths,
repeat(_CLASSES))
map_result_to_data(results, dataset_info)
image_paths = []
anno_paths = []
dataset_info['train_only'] = repeat(train_only,
len(dataset_info['image_name']))
dataset_info['image_id'] = repeat(0, len(dataset_info['image_name']))
dataset_df = pd.DataFrame.from_dict(dataset_info)
grouped = [df for _, df in dataset_df.groupby('image_name')]
total_images = len(grouped)
random.shuffle(grouped)
dataset_df = pd.concat(grouped).reset_index(drop=True)
dataset_df['image_id'] = dataset_df.groupby('image_name',
sort=False).ngroup() + start_id
if split != 0 and split is not None:
split_len = split * total_images
dataset_df.loc[dataset_df['image_id'] < start_id + split_len,
'train_only'] = False
return dataset_df
