ptypy.utils.array_utils.shift_zoom

ptypy.utils.array_utils.shift_zoom(c, zoom, cen_old, cen_new, **kwargs)

Move array from center cen_old to cen_new and perform a zoom zoom.

This function wraps scipy.ndimage.affine_transform and uses the same keyword arguments.

Addiionally, it allows for complex input and out by complex overloading, see complex_overload.

Parameters:

• c (numpy.ndarray) – Array to shiftzoom. Can be float or complex

• zoom (float) – Zoom factor

• cen_old (array_like) – Center in input array c

• cen_new (array_like) – Desired new center position in shiftzoomed array

Returns:

Shifted and zoomed array

Return type:

numpy.ndarray