def warp_required(xlooks, ylooks, crop):
    """
    Check if a crop or multi-look operation is required.

    :param int xlooks: Resampling/multi-looking in x dir
    :param int ylooks: Resampling/multilooking in y dir
    :param int crop: Interferogram crop option

    :return: True if params show rasters need to be cropped and/or resized
    :rtype: bool
    """
    if xlooks > 1 or ylooks > 1:
        return True
    if crop is None:
        return False
    return True