诺斯贝克

``` import cv2 import numpy as np # img = np.zeros((480,640), dtype=np.uint8) img = np.zeros((480,64

``` from itertools import count import cv2 import numpy as np # img = np.zeros((480,640), dtype=np.u

``` import cv2 def callback(): pass # YUV 视频编辑色彩空间 # YUV 4:2:0 # YUV 4:2:2 # YUV 4:2:2 # 设置窗口 cv2.na

``` import cv2 import numpy as np def callback(): pass # RGB-人的真眼色彩空间 BGR-opencv 的色彩空间，把RGB调换成了BGR #

``` import cv2 import numpy as np # 鼠标回调函数 def mouseCallback(event, x, y, flags, userData): print(ev

``` import cv2 # 创建VideoWriter 保存对象到多媒体文件 fourcc = cv2.VideoWriter_fourcc(*'MJPG') # 修正：MJPG是4个字符 vw

``` import cv2 cv2.namedWindow('video', cv2.WINDOW_NORMAL) # 设置窗口大小 cv2.resizeWindow('video', 640, 4

``` import cv2 cv2.namedWindow('image', cv2.WINDOW_NORMAL) img = cv2.imread('C:\Users\shaog\Pictures

``` import cv2 cv2.namedWindow('image', cv2.WINDOW_NORMAL) img = cv2.imread('C:\Users\shaog\Pictures