Opencv-Python(1)-读取图片、视频、网络摄像头

   pycharm+opencv+windows.

import cv2
import numpy as np

'''
1.读取图片

print("package imported")
img =cv2.imread("Resources/1.png")
cv2.imshow("Output",img)
cv2.waitKey(0)
'''
'''
2.视频

cap=cv2.VideoCapture("Resources/钢琴1.mp4")
while True:
    suceess,img = cap.read()
    cv2.imshow("video",img)
    if cv2.waitKey(1)& 0XFF==ord('q'):
        break
'''
'''
3.网络摄像头 用的是Id
'''
cap=cv2.VideoCapture(1)
#3 宽度 4 高度 10 亮度q
cap.set(3,640)
cap.set(4,480)
cap.set(10,100)

while True:
    suceess,img = cap.read()
    cv2.imshow("video",img)
    if cv2.waitKey(1)& 0XFF==ord('q'):
        break