以代码为基础的opencv-python学习 图片的加载以及视频展示

import cv2
import numpy as np

#视频读取
def video_demo():
    capture = cv2.VideoCapture(0)
 while(True):
 ret, frame = capture.read()
 #frame = cv2.flip(frame,1) #镜像变换
 cv2.imshow("video",frame)
 c = cv2.waitKey(50) #按ESC退出摄像头
 if c == 27:
 break

#图片信息展示
def get_image_info(image):
 print(type(image))
 print(image.shape)
 print(image.size)
 print(image.dtype)
 pixel_data = np.array(image)
 print(pixel_data)



src = cv2.imread("woman.jpg") #读取图片
cv2.namedWindow("input image",cv2.WINDOW_AUTOSIZE)
cv2.imshow('input image',src) #展示图片
#get_image_info(src)
video_demo()
cv2.waitKey(0)

cv2.destroyAllWindows()