Subtract#

class deeptrack.features.Subtract(value: float | Callable[[...], float] = 0, **kwargs: Dict[str, Any])#

Subtract a value from the input.

This feature performs element-wise subtraction (-) from the input.

Parameters#

valuePropertyLike[int or float], optional: The value to subtract from the input. Defaults to 0.
**kwargsAny: Additional keyword arguments passed to the parent constructor.

In this example, each element in the input array is decreased by 2.

Start by creating a pipeline using Subtract:

>>> from deeptrack.features import Subtract, Value

>>> pipeline = Value([1, 2, 3]) >> Subtract(value=2)
>>> pipeline.resolve()
[-1, 0, 1]

Equivalently, this pipeline can be created using:

>>> pipeline = Value([1, 2, 3]) - 2

>>> pipeline = - 2 + Value([1, 2, 3])

Or, most explicitly:

>>> input_value = Value([1, 2, 3])
>>> sub_feature = Subtract(value=2)
>>> pipeline = sub_feature(input_value)