xnn.cnn.models.steerable.shell_bandlimits#

xnn.cnn.models.steerable.shell_bandlimits(size, bandlimit='compromise')[source]#

Radii and angular bandlimits of the Gaussian shells of a kernel.

Parameters:
  • size (int) – Side of the cubic kernel.

  • bandlimit (str or sequence of int, optional) – A key of BANDLIMITS or an explicit J_max per shell.

Returns:

The size // 2 + 1 integer shell radii and their J_max.

Return type:

(list of float, list of int)