git：https://github.com/linyi0604/Computer-Vision
1 # coding:utf-8
2
3 import cv2
4
5 img = cv2.imread("../data/mm1.jpg", cv2.IMREAD_GRAYSCALE)
6
7 img = cv2.putText(img, "hello world!", (50, 50), cv2.FONT_HERSHEY_SIMPLEX, 1.2, (0, 255, 0), 2)
8 """
9 cv2.putText(图像, 文字, (x, y), 字体, 大小, (b, g, r), 宽度)
10 """
11
12 cv2.imshow("", img)
13 cv2.waitKey()
14 cv2.destroyAllWindows()
原文：https://www.cnblogs.com/Lin-Yi/p/9427736.html