mindspore.ops.Slice

class mindspore.ops.Slice(*args, **kwargs)[source]

Slices a tensor in the specified shape.

Slice the tensor ‘input_x` in shape of size and starting at the location specified by begin, The slice begin represents the offset in each dimension of input_x, The slice size represents the size of the output tensor.

Note that begin is zero-based and size is one-based.

If size[i] is -1, all remaining elements in dimension i are included in the slice. This is equivalent to setting \(size[i] = input_x.shape(i) - begin[i]\)

Inputs:

input_x (Tensor): The target tensor.
begin (Union[tuple, list]): The beginning of the slice. Only constant value is allowed.
size (Union[tuple, list]): The size of the slice. Only constant value is allowed.

Outputs:

Tensor, the shape is : input size, the data type is the same as input_x.

Raises: TypeError – If begin or size is neither tuple nor list.

Supported Platforms:: Ascend GPU CPU

Examples

>>> data = Tensor(np.array([[[1, 1, 1], [2, 2, 2]],
...                         [[3, 3, 3], [4, 4, 4]],
...                         [[5, 5, 5], [6, 6, 6]]]).astype(np.int32))
>>> slice = ops.Slice()
>>> output = slice(data, (1, 0, 0), (1, 1, 3))
>>> print(output)
[[[3 3 3]]]