python調用相機

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調用雙目相機

# -*- coding: utf-8 -*- import cv2 import timeAUTO = False # 自動拍照，或手動按s鍵拍照 INTERVAL = 2 # 自動拍照間隔 cv2.namedWindow("left") cv2.namedWindow("right") cap = cv2.VideoCapture(0) # 設置分辨率左右攝像機同一頻率，同一設備ID；左右攝像機總分辨率2560x720；分割為兩個1280x720 cap.set(cv2.CAP_PROP_FRAME_WIDTH, 2560) cap.set(cv2.CAP_PROP_FRAME_HEIGHT, 720) counter = 0 utc = time.time() folder = "./SaveImage/" # 拍照文件目錄def shot(pos, frame):global counterpath = folder + pos + "_" + str(counter) + ".jpg"cv2.imwrite(path, frame)print("snapshot saved into: " + path) while True:ret, frame = cap.read()print("ret:", ret)# 裁剪坐標為[y0:y1, x0:x1] HEIGHT * WIDTH，#雙目相機是兩個在一起的，通過剪切坐標位置可以單獨分開相機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 += 1utc = nowkey = cv2.waitKey(1)if key == ord("q"):breakelif key == ord("s"):shot("left", left_frame)shot("right", right_frame)counter += 1 cap.release() cv2.destroyWindow("left") cv2.destroyWindow("right")

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