def visual_coannotation(lnds_user, lnds_refs, path_dataset, path_user,
                        img_name, path_visu):
    """ visualise the co-annotation

    show consensus annotation and use annotation

    :param DF lnds_user: loaded DataFrame
    :param DF lnds_refs: loaded DataFrame
    :param path_dataset: path to the image dataset (root)
    :param name_set: name of the image set
    :param name_user_scale: annotation folder containing user name and used scale
    :param img_name: particular image/annotation/stain name
    :param str|None path_visu: path to output
    :return str: figure path
    """
    name_set, name_user_scale = path_user.split(os.sep)[-2:]
    user, scale = parse_path_user_scale(name_user_scale)
    folder_scale = TEMPLATE_FOLDER_SCALE % scale
    image = None
    if path_dataset is not None and os.path.isdir(path_dataset):
        path_dir = os.path.join(path_dataset, name_set, folder_scale)
        paths_image = find_images(path_dir, img_name)
        image = load_image(paths_image[0]) if paths_image else None

    lnds_user = lnds_user * (scale / 100.)
    lnds_refs = lnds_refs * (scale / 100.)
    fig = figure_image_landmarks(lnds_refs, image, lnds_user, lnds2_name=user)

    fig_name = NAME_FIGURE_COANNOT % img_name
    path_dir = os.path.join(path_visu, name_set, name_user_scale)
    create_folder_path(path_dir)
    path_fig = os.path.join(path_dir, fig_name)
    fig.savefig(path_fig)
    plt.close(fig)
    return path_fig
def export_visual_set_scale(d_paths):
    """ export, visualise given set in particular scale

    :param {str: str} d_paths: dictionary with path patterns
    :return int: number of processed items
    """
    list_lnds = sorted(glob.glob(os.path.join(d_paths['landmarks'], '*.csv')))
    list_lnds_imgs = []
    # fined relevant images to the given landmarks
    for p_lnds in list_lnds:
        name_ = os.path.splitext(os.path.basename(p_lnds))[0]
        p_imgs = find_images(d_paths['images'], name_)
        if p_imgs:
            list_lnds_imgs.append((p_lnds, sorted(p_imgs)[0]))
    # if there are no images or landmarks, skip it...
    if not list_lnds_imgs:
        logging.debug('no image-landmarks to show...')
        return 0
    # create the output folder
    if not os.path.isdir(d_paths['output']):
        os.makedirs(d_paths['output'])
    # draw and export image-landmarks
    for p_lnds, p_img in list_lnds_imgs:
        name_ = os.path.splitext(os.path.basename(p_img))[0]
        img = load_image(p_img)
        if img is None:
            continue
        fig = figure_image_landmarks(pd.read_csv(p_lnds), img)
        fig.savefig(os.path.join(d_paths['output'], name_ + '.pdf'))
        plt.close(fig)
    # draw and export PAIRS of image-landmarks
    path_pairs = [(p1, p2) for i, p1 in enumerate(list_lnds_imgs)
                  for p2 in list_lnds_imgs[i + 1:]]
    for p1, p2 in path_pairs:
        export_visual_pairs(p1, p2, d_paths['output'])
    return len(list_lnds_imgs)