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import json
import os.path as osp
from labelme.utils import image as image_module
from labelme.utils import shape as shape_module
here = osp.dirname(osp.abspath(__file__))
data_dir = osp.join(here, "../data")
def get_img_and_data():
json_file = osp.join(data_dir, "annotated_with_data/apc2016_obj3.json")
with open(json_file) as f:
data = json.load(f)
img_b64 = data["imageData"]
img = image_module.img_b64_to_arr(img_b64)
return img, data
def get_img_and_lbl():
img, data = get_img_and_data()
label_name_to_value = {"__background__": 0}
for shape in data["shapes"]:
label_name = shape["label"]
label_value = len(label_name_to_value)
label_name_to_value[label_name] = label_value
n_labels = max(label_name_to_value.values()) + 1
label_names = [None] * n_labels
for label_name, label_value in label_name_to_value.items():
label_names[label_value] = label_name
lbl, _ = shape_module.shapes_to_label(
img.shape, data["shapes"], label_name_to_value
)
return img, lbl, label_names
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