python调用相机和双目相机

python调用相机

import cv2
import numpy as np
cap = cv2.VideoCapture(0)
ret, frame = cap.read()
while ret:
    ret, frame = cap.read()
    cv2.imshow("frame", frame)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break
cv2.destroyAllWindows()
cap.release()

python调用双目相机

# -*- coding: utf-8 -*-
import cv2
import time

AUTO = False  # 自动拍照，或手动按s键拍照
INTERVAL = 2  # 自动拍照间隔
cv2.namedWindow("left")
cv2.namedWindow("right")
cap = cv2.VideoCapture(0)
# 设置分辨率左右摄像机同一频率，同一设备ID；左右摄像机总分辨率2560x720；分割为两个1280x720
cap.set(cv2.CAP_PROP_FRAME_WIDTH, 2560)
cap.set(cv2.CAP_PROP_FRAME_HEIGHT, 720)
counter = 0
utc = time.time()
folder = "./SaveImage/"  # 拍照文件目录


def shot(pos, frame):
    global counter


    path = folder + pos + "_" + str(counter) + ".jpg"
    cv2.imwrite(path, frame)
    print("snapshot saved into: " + path)
while True:
    ret, frame = cap.read()
    print("ret:", ret)
    # 裁剪坐标为[y0:y1, x0:x1] HEIGHT * WIDTH，
    #双目相机是两个在一起的，通过剪切坐标位置可以单独分开相机
    left_frame = frame[0:720, 0:1280]
    right_frame = frame[0:720, 1280:2560]
    cv2.imshow("left", left_frame)
    cv2.imshow("right", right_frame)
    now = time.time()
    if AUTO and now - utc >= INTERVAL:
        shot("left", left_frame)
        shot("right", right_frame)
        counter += 1
        utc = now
    key = cv2.waitKey(1)
    if key == ord("q"):
        break
    elif key == ord("s"):
        shot("left", left_frame)
        shot("right", right_frame)
        counter += 1
cap.release()
cv2.destroyWindow("left")
cv2.destroyWindow("right")

![在这里插入图片描述](https://img-blog.csdnimg.cn/34bbfe8b8cff4adf9866b9b71795f5aa.png?x-oss-process=image/watermark,type_d3F5LXplb