nvidia.dali.fn.coord_flip

nvidia.dali.fn.coord_flip(__input, /, *, bytes_per_sample_hint=[0], center_x=0.5, center_y=0.5, center_z=0.5, flip_x=1, flip_y=0, flip_z=0, layout='', preserve=False, seed=-1, device=None, name=None)

Transforms vectors or points by flipping (reflecting) their coordinates with respect to a given center.

Supported backends

• ‘cpu’

• ‘gpu’

Parameters:

__input (TensorList) – Input to the operator.

Keyword Arguments:

• bytes_per_sample_hint (int or list of int, optional, default = [0]) –

  Output size hint, in bytes per sample.

  If specified, the operator’s outputs residing in GPU or page-locked host memory will be preallocated to accommodate a batch of samples of this size.

• center_x (float or TensorList of float, optional, default = 0.5) – Flip center in the horizontal axis.

• center_y (float or TensorList of float, optional, default = 0.5) – Flip center in the vertical axis.

• center_z (float or TensorList of float, optional, default = 0.5) – Flip center in the depthwise axis.

• flip_x (int or TensorList of int, optional, default = 1) – Flip the horizontal (x) coordinate.

• flip_y (int or TensorList of int, optional, default = 0) – Flip the vertical (y) coordinate.

• flip_z (int or TensorList of int, optional, default = 0) – Flip the depthwise (z) coordinate.

• layout (layout str, optional, default = ‘’) –

  Determines the order of coordinates in the input.

  The string should consist of the following characters:

  • ”x” (horizontal coordinate),

  • ”y” (vertical coordinate),

  • ”z” (depthwise coordinate),

  Note

  If left empty, depending on the number of dimensions, the “x”, “xy”, or “xyz” values are assumed.

• preserve (bool, optional, default = False) – Prevents the operator from being removed from the graph even if its outputs are not used.

• seed (int, optional, default = -1) –

  Random seed.

  If not provided, it will be populated based on the global seed of the pipeline.