'''
本次来学习基于opencv进行各种画图操作,以前只习惯用matplotlib,最近开始用opencv,觉得也很好用。
cv.line(), cv.circle() , cv.rectangle(), cv.ellipse(), cv.putText()
In all the above functions, ...
import cv2 as cv
import numpy as np
from matplotlib import pyplot as plt
def extrace_object_demo(image):
capture=cv.VideoCapture("") #输入视频地址
while(True):
...