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import numpy as np
from data.quad import Quad
from concern.config import State
from .data_process import DataProcess
class SerializeBox(DataProcess):
box_key = State(default='charboxes')
format = State(default='NP2')
def process(self, data):
data[self.box_key] = data['lines'].quads
return data
class UnifyRect(SerializeBox):
max_size = State(default=64)
def process(self, data):
h, w = data['image'].shape[:2]
boxes = np.zeros((self.max_size, 4), dtype=np.float32)
mask_has_box = np.zeros(self.max_size, dtype=np.float32)
data = super().process(data)
quad = data[self.box_key]
assert quad.shape[0] <= self.max_size
boxes[:quad.shape[0]] = quad.rectify() / np.array([w, h, w, h]).reshape(1, 4)
mask_has_box[:quad.shape[0]] = 1.
data['boxes'] = boxes
data['mask_has_box'] = mask_has_box
return data
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