python 畫圖函數

# coding=utf-8
import cv2

img = cv2.imread('/home/pi/工作/lena.jpeg')
# 畫線，紅色
cv2.line(img, pt1=(30, 30), pt2=(200, 200), color=(0, 0, 255), thickness=2)

# 矩形，綠色
cv2.rectangle(img, pt1=(40, 40), pt2=(250, 250), color=(0, 255, 0), thickness=2)

# 圓形，藍色
cv2.circle(img, center=(50, 50), radius=70, color=(255, 0, 0), thickness=2)

# 文本， org=文字的起點座標, fontFace=字體
cv2.putText(img, 'different operation with different color',
            org=(50, 50),
            fontFace=cv2.FONT_HERSHEY_SIMPLEX,
            fontScale=0.25,
            color=(255, 255, 100))

cv2.imshow('畫圖', img)
cv2.imwrite('./畫圖.png', img)
cv2.waitKey(0)