def get_ss_value(tag):
    """
    Getters for data that also work with implicit transfersyntax

    :param tag: the tag to read
    """
    # data is int formatted as string so convert te string first and cast to int
    if tag.VR == 'OB' or tag.VR == 'UN':
        value = struct.unpack('h', tag.value)[0]
        return value
    return tag.value