- nvidia.dali.fn.brightness(__input, /, *, brightness=1.0, brightness_shift=0.0, bytes_per_sample_hint=, dtype=None, preserve=False, seed=-1, device=None, name=None)¶
Adjusts the brightness of the images.
The brightness is adjusted based on the following formula:
out = brightness_shift * output_range + brightness * in
Where output_range is 1 for float outputs or the maximum positive value for integral types.
This operator can also change the type of data.
This operator allows sequence inputs and supports volumetric data.
- Supported backends
__input (TensorList ('FHWC', 'DHWC', 'HWC')) – Input to the operator.
- Keyword Arguments:
brightness (float or TensorList of float, optional, default = 1.0) –
brightness_shift (float or TensorList of float, optional, default = 0.0) –
The brightness shift.
For signed types, 1.0 represents the maximum positive value that can be represented by the type.
bytes_per_sample_hint (int or list of int, optional, default = ) –
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.
nvidia.dali.types.DALIDataType, optional) –
Output data type.
If not set, the input type is used.
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) –
If not provided, it will be populated based on the global seed of the pipeline.