def groupID_callback(x):
    """
    image_name = 1_1-1256_1264_2461_2455-12003110450161(_1).jpg
    big_image_name = 12003110450161
    """
    img_path = x['info']['image_path']
    big_img_name = img_path.split('.')[-2]
    big_img_name = big_img_name.split('-')[-1].split('_')[0]
    return big_img_name