BkgIDWInterpolator#

class photutils.background.BkgIDWInterpolator(*, leafsize=10, n_neighbors=10, power=1.0, reg=0.0)[source]#

Bases: object

This class generates full-sized background and background RMS images from lower-resolution mesh images using inverse-distance weighting (IDW) interpolation (ShepardIDWInterpolator).

This class must be used in concert with the Background2D class.

Parameters:

leafsizefloat, optional: The number of points at which the k-d tree algorithm switches over to brute-force. leafsize must be positive. See scipy.spatial.cKDTree for further information.
n_neighborsint, optional: The maximum number of nearest neighbors to use during the interpolation.
powerfloat, optional: The power of the inverse distance used for the interpolation weights.
regfloat, optional: The regularization parameter. It may be used to control the smoothness of the interpolator.

Methods Summary

__call__(data, **kwargs)

Resize the 2D mesh array.

Methods Documentation

__call__(data, **kwargs)[source]#

Resize the 2D mesh array.

Parameters:

data2D ndarray: The low-resolution 2D mesh array.
**kwargsdict: Additional keyword arguments passed to the interpolator.

Returns:

result2D ndarray: The resized background or background RMS image.