ArUco_Book_Creation.py

import numpy as np
import cv2
import matplotlib.pyplot as plt
from matplotlib.backends.backend_pdf import PdfPages

# load the ArUCo dictionary
arucoDict = cv2.aruco.Dictionary_get(cv2.aruco.DICT_4X4_50)

dpi = 100
width = 15*0.393701 #15cm
height = width #15cm

pixels = int(width*dpi)

with PdfPages('Tag_Book.pdf') as pdf:
    for tag_number in range(0,50):
        tag = np.zeros((pixels, pixels, 1), dtype="uint8")
        cv2.aruco.drawMarker(arucoDict, tag_number, pixels, tag, 1);

        fig = plt.figure(figsize=(width, height), dpi=dpi)
        ax = fig.add_axes([0, 0, 1, 1], frameon=False, aspect=1)

        ax.imshow(tag,cmap='gray', extent=[0,1,0,1], interpolation="nearest")
        ax.set_xticks([])
        ax.set_yticks([])
        
        text = (f'Tag #{tag_number}, DICT_4X4_50' )
        ax.text(0.02,0.02, text, color="white", fontsize=12, alpha=0.5)
        pdf.savefig()  # saves the current figure into a pdf page
        plt.close()