笔电脑自带摄像头和外接USB摄像头Python+OpenCV测试代码

笔电脑自带摄像头和外接USB摄像头Python+OpenCV测试代码

复制代码到pycharm或其他编辑器运行

import cv2

capture = cv2.VideoCapture(0)

capture_usb = cv2.VideoCapture(1)

# 打开自带的摄像头

if capture.isOpened():

    if capture_usb.isOpened():
        capture.set(cv2.CAP_PROP_FRAME_WIDTH, 640)

        capture.set(cv2.CAP_PROP_FRAME_HEIGHT, 480)

        capture_usb.set(cv2.CAP_PROP_FRAME_WIDTH, 640)

        capture_usb.set(cv2.CAP_PROP_FRAME_HEIGHT, 480)

# 持续读取摄像头数据

while True:

    read_code, frame = capture.read()

    read_code2, frame2 = capture_usb.read()

    if not read_code or not read_code2:

        break

    cv2.imshow("screen_title", frame)

    cv2.imshow("screen_title_usb", frame2)

    # 输入 q 键，保存当前画面为图片

    if cv2.waitKey(1) == ord('q'):

        # 设置图片分辨率

        frame = cv2.resize(frame, (1920, 1080))

        cv2.imwrite('pic.jpg', frame)

        capture_usb.release()

        break

    # 释放资源

capture.release()

cv2.destroyWindow("screen_title")