python自动截取需要区域,进行图像识别的方法

import os
os.chdir("G:Python1Libsite-packagespytesser")
from pytesser import *
from pytesseract import image_to_string
from PIL import Image
from PIL import ImageGrab

#截图，获取需要识别的区域
x = 345
y = 281
m = 462
n = 327

k = 54
for i in range(2,6):
 box = (x,y,m,n)
 img = ImageGrab.grab(box)
 img.save("G:Python1Libsite-packagespytesserkangkang"+str(i)+".png")
 #img.show()
 y+=54
 n+=54

#截图完毕后，开始图像识别
names=["kangkang2.png","kangkang3.png","kangkang4.png","kangkang5.png"]
for name in names:
 im = Image.open(name)
 text = image_to_string(im)
 print(name+":"+text)