cwitools.measurement.asymmetry

cwitools.measurement.asymmetry(sb_map, obj_mask=None)

Calculate the spatial asymmetry (alpha) of a 2D or 3D object.

Parameters:

• sb_map (numpy.ndarray) – The 2D surface brightness map.
• obj_mask (numpy.ndarray) – A 2D mask delineating the object.

Returns:

The calculated asymmetry parameter (alpha), represening the minor/major axis ratio.

Return type:

float