USPS¶
-
class
torchvision.datasets.
USPS
(root: str, train: bool = True, transform: Optional[Callable] = None, target_transform: Optional[Callable] = None, download: bool = False)[source]¶ USPS Dataset. The data-format is : [label [index:value ]*256 n] * num_lines, where
label
lies in[1, 10]
. The value for each pixel lies in[-1, 1]
. Here we transform thelabel
into[0, 9]
and make pixel values in[0, 255]
.- Parameters
root (string) – Root directory of dataset to store``USPS`` data files.
train (bool, optional) – If True, creates dataset from
usps.bz2
, otherwise fromusps.t.bz2
.transform (callable, optional) – A function/transform that takes in an PIL image and returns a transformed version. E.g,
transforms.RandomCrop
target_transform (callable, optional) – A function/transform that takes in the target and transforms it.
download (bool, optional) – If true, downloads the dataset from the internet and puts it in root directory. If dataset is already downloaded, it is not downloaded again.
- Special-members