Rescale

class deeptrack.optical.holography.Rescale(rescale: float = 1, **kwargs: Any)

Bases: Feature

Rescales an optical field by modifying its real and imaginary components.

The transformation is applied as:

• The real part is shifted and scaled: (real - 1) * rescale + 1

• The imaginary part is scaled by rescale

Parameters

rescale: float

The scaling factor applied to both real and imaginary components.

Methods

get(image, rescale, **kwargs) -> np.ndarray

Rescales the image while preserving phase information.

Examples

>>> import deeptrack as dt
>>> import numpy as np
>>> field = np.random.rand(128, 128, 2)
>>> rescaled_field = dt.holography.Rescale(0.5)(field)

Methods Summary

get(image, rescale, **kwargs)

Rescales the image by subtracting the real part of the field before multiplication.

Methods Documentation

get(image: ndarray, rescale: float, **kwargs: Any) → ndarray

Rescales the image by subtracting the real part of the field before multiplication.

Parameters

image: np.ndarray

The image to rescale.

rescale: float

The rescaling factor.

**kwargs: Any

Additional keyword arguments.

Returns

np.ndarray

The rescaled image.