def get_pad_params(desired_size, cur_size):
    """
    Get padding parameters for np.pad function
    Args:
        desired_size: int, Desired padded output size
        cur_size: int, Current size. Should always be less than or equal to cur_size
    Returns:
        pad_params: tuple(int), Number of values padded to the edges (before, after)
    """
    assert desired_size >= cur_size

    # Calculate amount to pad
    diff = desired_size - cur_size
    pad_params = (0, diff)

    return pad_params