nvidia.dali.fn.saturation#
- nvidia.dali.fn.saturation(__input, /, *, bytes_per_sample_hint=[0], dtype=None, image_type=DALIImageType.RGB, preserve=False, saturation=1.0, seed=-1, device=None, name=None)#
Changes the saturation level of the image.
This operator allows sequence inputs and supports volumetric data.
- Supported backends
‘cpu’
‘gpu’
- Parameters:
__input¶ (TensorList ('HWC', 'FHWC', 'DHWC')) – 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.
dtype¶ (
nvidia.dali.types.DALIDataType
, optional) –Output data type.
If not set, the input type is used.
image_type¶ (
nvidia.dali.types.DALIImageType
, optional, default = DALIImageType.RGB) – The color space of the input and the output image.preserve¶ (bool, optional, default = False) – Prevents the operator from being removed from the graph even if its outputs are not used.
saturation¶ (float or TensorList of float, optional, default = 1.0) –
The saturation change factor.
Values must be non-negative.
Example values:
0 - Completely desaturated image.
1 - No change to image’s saturation.
Supports
per-frame
inputs.seed¶ (int, optional, default = -1) –
Random seed.
If not provided, it will be populated based on the global seed of the pipeline.