piiswrong commented on a change in pull request #7635: add fashion mnist and
move mnists to s3
URL: https://github.com/apache/incubator-mxnet/pull/7635#discussion_r135404465
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File path: python/mxnet/gluon/data/vision.py
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@@ -102,6 +102,56 @@ def _get_data(self):
self._label = label
+class FashionMNIST(_DownloadedDataset):
+ """A dataset of Zalando's article images consisting of fashion products,
+ a drop-in replacement of the original MNIST dataset from
+ `https://github.com/zalandoresearch/fashion-mnist`_.
+
+ Each sample is an image (in 3D NDArray) with shape (28, 28, 1).
+
+ Parameters
+ ----------
+ root : str
+ Path to temp folder for storing data.
+ train : bool
+ Whether to load the training or testing set.
+ transform : function
+ A user defined callback that transforms each instance. For example::
+
+ transform=lambda data, label: (data.astype(np.float32)/255, label)
+ """
+ def __init__(self, root='~/.mxnet/datasets/fashion-mnist', train=True,
+ transform=None):
+ super(FashionMNIST, self).__init__(root, train, transform)
+
+ def _get_data(self):
+ if not os.path.isdir(self._root):
+ os.makedirs(self._root)
+ url =
'https://apache-mxnet.s3.amazonaws.com/gluon/dataset/fashion-mnist/'
+ if self._train:
+ data_file = download(url+'train-images-idx3-ubyte.gz', self._root,
Review comment:
move url into MNIST._train_data_url/_train_label_url etc and inherit MNIST
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