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accelerate augment #119

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accelerate augment #119

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f251d9e
Update iaa_augment.py
Loovelj Jun 3, 2021
54e3a0e
Update iaa_augment.py
Loovelj Jun 4, 2021
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19 changes: 7 additions & 12 deletions data_loader/modules/iaa_augment.py
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Original file line number Diff line number Diff line change
Expand Up @@ -48,17 +48,12 @@ def __call__(self, data):
def may_augment_annotation(self, aug, data, shape):
if aug is None:
return data

line_polys = []
all_poly = []
for poly in data['text_polys']:
new_poly = self.may_augment_poly(aug, shape, poly)
line_polys.append(new_poly)
data['text_polys'] = np.array(line_polys)
for p in poly:
all_poly.append(imgaug.Keypoint(p[0], p[1]))
keypoints = aug.augment_keypoints([imgaug.KeypointsOnImage(all_poly, shape=shape)])[0].keypoints
final_poly = np.array([(p.x, p.y) for p in keypoints]).reshape([-1, 4, 2])
data['text_polys'] =final_poly
return data

def may_augment_poly(self, aug, img_shape, poly):
keypoints = [imgaug.Keypoint(p[0], p[1]) for p in poly]
keypoints = aug.augment_keypoints(
[imgaug.KeypointsOnImage(keypoints, shape=img_shape)])[0].keypoints
poly = [(p.x, p.y) for p in keypoints]
return poly