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update segment training (#57)

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: ayush chaurasia <ayush.chaurarsia@gmail.com>
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Laughing 2022-11-29 05:30:08 -06:00 • committed by GitHub
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14 changed files with 460 additions and 144 deletions
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ultralytics/yolo/data/base.py
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@ -151,7 +151,7 @@ class BaseDataset(Dataset):
bi = np.floor(np.arange(self.ni) / self.batch_size).astype(int) # batch index
nb = bi[-1] + 1 # number of batches
s = np.array([x["shape"] for x in self.labels]) # hw
s = np.array([x.pop("shape") for x in self.labels]) # hw
ar = s[:, 0] / s[:, 1] # aspect ratio
irect = ar.argsort()
self.im_files = [self.im_files[i] for i in irect]