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- import numpy as np
- def random_idxs(idxs, rnd=None, n_parts=None):
- if rnd is None or isinstance(rnd, int):
- rnd = np.random.RandomState(rnd)
- else:
- assert isinstance(rnd, np.random.RandomState), \
- "'rnd' should be either a random seed or a RandomState instance!"
- n_parts = n_parts or rnd.randint(1, len(idxs))
- res = rnd.choice(idxs, n_parts, replace=False)
- res.sort()
- return res
- class attr_dict(dict):
- def __getattr__(self, name):
- if name in self:
- return self[name]
- else:
- return super(attr_dict, self).get(name)
- def __getitem__(self, key):
- res = super(attr_dict, self).__getitem__(key)
- if isinstance(res, dict):
- return attr_dict(res)
- return res
- class _MetaInfo(object):
- def __init__(self, **kwargs):
- for name, value in kwargs.items():
- setattr(self, name, value)
- self.structure = []
- from .image import asarray, dimensions
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