【python工具开发】使用openCV获取电脑屏幕

使用OpenCV捕获电脑屏幕

安装依赖

pip install opencv-python pyautogui numpy

代码

import cv2
import pyautogui
import numpy as np
from datetime import datetime# 设置捕获电脑区域
monitor = (0, 0, 1920, 1080)# 视频保存参数
fourcc = cv2.VideoWriter_fourcc(*'XVID')
fps = 25.0
output_size = (1920, 1080)
output_file = 'screen_capture.avi'# 创建 VideoWriter 对象
out = cv2.VideoWriter(output_file, fourcc, fps, output_size)# 创建 windows 窗体
cv2.namedWindow("实时屏幕捕获".encode("gbk").decode('UTF-8', errors='ignore'), cv2.WINDOW_NORMAL)while True:# 获取当前时间current_time = datetime.now().strftime("%Y-%m-%d %H:%M:%S")# 设置捕获对象screenshot = pyautogui.screenshot(region=monitor)screenshot_np = np.array(screenshot)# 将 BGR 转换为 RGB (OpenCV 默认使用 RGB)screenshot_np = cv2.cvtColor(screenshot_np, cv2.COLOR_BGR2RGB)# 在窗口内显示实时时间cv2.putText(screenshot_np, current_time, (10, 70), cv2.FONT_HERSHEY_SIMPLEX, 0.8, (0, 0, 0), 2, cv2.LINE_AA)# 将帧写入视频流# out.write(screenshot_np)# 显示屏幕截取画面cv2.imshow("实时屏幕捕获".encode("gbk").decode('UTF-8', errors='ignore'), screenshot_np)# 监控按键，按下 q 退出程序if cv2.waitKey(1) & 0xFF == ord("q"):break# 关闭 OpenCV 所有窗体
cv2.destroyAllWindows()