wradlib.util.filter_window_polar

wradlib.util.filter_window_polar#

wradlib.util.filter_window_polar(img, wsize, fun, rscale, *, random=False)[source]#
wradlib.util.filter_window_polar(obj: DataArray, **kwargs)

Apply a filter of an approximated square window of half size fsize on a given polar image img.

Parameters:

  • img (numpy.ndarray) – 2d array of values to which the filter is to be applied

  • wsize (float) – Half size of the window centred on the pixel [m]

  • fun (str) – name of the 1d filter from scipy.ndimage

  • rscale (float) – range [m] scale of the polar grid

  • random (bool) – True to use random azimuthal size to avoid long-term biases.

Returns:

output (numpy.ndarray) – Array with the same shape as img, containing the filter’s results.