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import imgaug
import imgaug.augmenters as iaa
from concern.config import Configurable, State
class AugmenterBuilder(object):
def __init__(self):
pass
def build(self, args, root=True):
if args is None:
return None
elif isinstance(args, (int, float, str)):
return args
elif isinstance(args, list):
if root:
sequence = [self.build(value, root=False) for value in args]
return iaa.Sequential(sequence)
else:
return getattr(iaa, args[0])(
*[self.to_tuple_if_list(a) for a in args[1:]])
elif isinstance(args, dict):
if 'cls' in args:
cls = getattr(iaa, args['cls'])
return cls(**{k: self.to_tuple_if_list(v) for k, v in args.items() if not k == 'cls'})
else:
return {key: self.build(value, root=False) for key, value in args.items()}
else:
raise RuntimeError('unknown augmenter arg: ' + str(args))
def to_tuple_if_list(self, obj):
if isinstance(obj, list):
return tuple(obj)
return obj
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