forked from huawei/mindspore2022
104 lines
2.6 KiB
ReStructuredText
104 lines
2.6 KiB
ReStructuredText
mindspore.dataset
|
||
=================
|
||
|
||
该模块提供了加载和处理各种通用数据集的API，如MNIST、CIFAR-10、CIFAR-100、VOC、COCO、ImageNet、CelebA、CLUE等，
|
||
也支持加载业界标准格式的数据集，包括MindRecord、TFRecord、Manifest等。此外，用户还可以使用此模块定义和加载自己的数据集。
|
||
|
||
该模块还提供了在加载时进行数据采样的API，如SequentialSample、RandomSampler、DistributedSampler等。
|
||
|
||
大多数数据集可以通过指定参数 `cache` 启用缓存服务，以提升整体数据处理效率。
|
||
请注意Windows平台上还不支持缓存服务，因此在Windows上加载和处理数据时，请勿使用。更多介绍和限制，
|
||
请参考 `Single-Node Tensor Cache <https://www.mindspore.cn/docs/programming_guide/zh-CN/master/cache.html>`_。
|
||
|
||
|
||
在API示例中，常用的模块导入方法如下：
|
||
|
||
.. code-block::
|
||
|
||
import mindspore.dataset as ds
|
||
from mindspore.dataset.transforms import c_transforms
|
||
|
||
Vision
|
||
-------
|
||
|
||
.. cnmsautosummary::
|
||
:toctree: dataset
|
||
|
||
mindspore.dataset.CelebADataset
|
||
mindspore.dataset.CocoDataset
|
||
mindspore.dataset.ImageFolderDataset
|
||
mindspore.dataset.MnistDataset
|
||
mindspore.dataset.VOCDataset
|
||
mindspore.dataset.Cifar100Dataset
|
||
mindspore.dataset.Cifar10Dataset
|
||
|
||
Text
|
||
----
|
||
|
||
.. cnmsautosummary::
|
||
:toctree: dataset
|
||
|
||
mindspore.dataset.CLUEDataset
|
||
|
||
Graph
|
||
-----
|
||
|
||
.. cnmsautosummary::
|
||
:toctree: dataset
|
||
|
||
mindspore.dataset.GraphData
|
||
|
||
|
||
User Defined
|
||
------------
|
||
|
||
.. cnmsautosummary::
|
||
:toctree: dataset
|
||
|
||
mindspore.dataset.GeneratorDataset
|
||
mindspore.dataset.NumpySlicesDataset
|
||
mindspore.dataset.PaddedDataset
|
||
|
||
Sampler
|
||
-------
|
||
|
||
.. cnmsautosummary::
|
||
:toctree: dataset
|
||
|
||
mindspore.dataset.DistributedSampler
|
||
mindspore.dataset.PKSampler
|
||
mindspore.dataset.RandomSampler
|
||
mindspore.dataset.SequentialSampler
|
||
mindspore.dataset.SubsetRandomSampler
|
||
mindspore.dataset.SubsetSampler
|
||
mindspore.dataset.WeightedRandomSampler
|
||
|
||
Standard Format
|
||
---------------
|
||
|
||
.. cnmsautosummary::
|
||
:toctree: dataset
|
||
|
||
mindspore.dataset.CSVDataset
|
||
mindspore.dataset.ManifestDataset
|
||
mindspore.dataset.MindDataset
|
||
mindspore.dataset.TFRecordDataset
|
||
mindspore.dataset.TextFileDataset
|
||
|
||
Others
|
||
------
|
||
|
||
.. cnmsautosummary::
|
||
:toctree: dataset
|
||
|
||
mindspore.dataset.DSCallback
|
||
mindspore.dataset.DatasetCache
|
||
mindspore.dataset.Schema
|
||
mindspore.dataset.WaitedDSCallback
|
||
mindspore.dataset.compare
|
||
mindspore.dataset.deserialize
|
||
mindspore.dataset.serialize
|
||
mindspore.dataset.show
|
||
mindspore.dataset.utils.imshow_det_bbox
|
||
mindspore.dataset.zip
|