python+opencv链接摄像头
1 import cv2 2 import numpy as numpy 3 cap=cv2.VideoCapture(0) 4 #设置显示分辨率和FPS ,不设置的话会非常卡 5 cap.set(cv2.CAP_PROP_FRAME_WIDTH,800) 6 cap.set(cv2.CAP_PROP_FRAME_HEIGHT,600) 7 cap.set (cv2.CAP_PROP_FPS,20) 8 while cap.isOpened(): 9 ret,frame=cap.read() 10 # cv2.flip(frame,frame,1) 11 # frame1=None 12 # cv2.flip(frame,frame1,1) 13 #图像水平翻转 14 frame=cv2.flip(frame,1) 15 # gray=cv2.cvtColor(frame,cv2.COLOR_BGR2RGB) 16 17 cv2.imshow('camare',frame) 18 #按Q键退出 19 if cv2.waitKey(1) & 0xFF==ord('q'): 20 break 21 #释放摄像头和卸载窗口 22 cap.release() 23 cv2.destroyAllWindows()