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paddle.nn.functional. pixel_unshuffle ( x: Tensor, downscale_factor: int, data_format: DataLayout2D = 'NCHW', name: str | None = None ) → Tensor [source]
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This API implements pixel unshuffle operation. See more details in PixelUnShuffle .

Parameters

  • x (Tensor) – 4-D tensor, the data type should be float32 or float64.

  • downscale_factor (int) – Factor to decrease spatial resolution.

  • data_format (str, optional) – The data format of the input and output data. An optional string of 'NCHW' or 'NHWC'. When it is 'NCHW', the data is stored in the order of [batch_size, input_channels, input_height, input_width]. Default: 'NCHW'.

  • name (str|None, optional) – Name for the operation (optional, default is None). Normally there is no need for user to set this property. For more information, please refer to Name.

Returns

Reshaped tensor according to the new dimension.

Return type

Out (Tensor)

Examples

>>> import paddle
>>> import paddle.nn.functional as F
>>> x = paddle.randn([2, 1, 12, 12])
>>> out = F.pixel_unshuffle(x, 3)
>>> print(out.shape)
[2, 9, 4, 4]