快速截图并查找点击

from time import sleep
import pyautogui
from PIL import ImageGrab, Image
import pyscreeze
import cv2

# 屏幕缩放系数 mac缩放是2 windows一般是1
screenScale=1

#事先读取按钮截图
target= cv2.imread(r"an1.png",cv2.IMREAD_GRAYSCALE)
# 先截图
screenshot=pyscreeze.screenshot('my_screenshot.png')
# 读取图片 灰色会快
temp = cv2.imread(r'my_screenshot.png',cv2.IMREAD_GRAYSCALE)

theight, twidth = target.shape[:2]
tempheight, tempwidth = temp.shape[:2]
print("目标图宽高："+str(twidth)+"-"+str(theight))
print("模板图宽高："+str(tempwidth)+"-"+str(tempheight))
# 先缩放屏幕截图 INTER_LINEAR INTER_AREA
scaleTemp=cv2.resize(temp, (int(tempwidth / screenScale), int(tempheight / screenScale)))
stempheight, stempwidth = scaleTemp.shape[:2]
print("缩放后模板图宽高："+str(stempwidth)+"-"+str(stempheight))
# 匹配图片
res = cv2.matchTemplate(scaleTemp, target, cv2.TM_CCOEFF_NORMED)
mn_val, max_val, min_loc, max_loc = cv2.minMaxLoc(res)
if(max_val>=0.9):
    # 计算出中心点
    top_left = max_loc
    bottom_right = (top_left[0] + twidth, top_left[1] + theight)
    tagHalfW=int(twidth/2)
    tagHalfH=int(theight/2)
    tagCenterX=top_left[0]+tagHalfW
    tagCenterY=top_left[1]+tagHalfH
    #左键点击屏幕上的这个位置
    pyautogui.click(tagCenterX,tagCenterY,button='left')
else:
    print ("没找到")