python读取图片并标注框

import cv2
import numpy as np
fname = 'F:\PythonProject\psLabel\P1010170.JPG'
img = cv2.imread(fname)


weigth=img.shape[1]
height=img.shape[0]


kuang=(0.1,0.1)

p1=(0.1,0.1)

p2=np.multiply(p1,(weigth,height))
p2=p2.astype(int)

p3=np.add(p1,kuang)

p3=np.multiply(p3,(weigth,height))
p3=p3.astype(int)


p3= tuple(p3)
p2= tuple(p2)

cv2.rectangle(img,p2,p3,(0,255,0),10)

# # 画矩形框 距离靠左靠上的位置
# pt1 = (651, 460)  # 左边，上边   #数1 ， 数2
# pt2 = (180 + 651, 462 + 227)  # 右边，下边  #数1+数3，数2+数4
# cv2.rectangle(img, pt1, pt2, (0, 255, 0), 6)

cv2.imwrite('22.jpg', img)

# cv2.imshow("image", img)
#
# cv2.waitKey(0) #等待按键