以代码为基础的opencv-python学习 图片的加载以及视频展示

Posted 2021-03-04 august2019

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()