对象有没有属性 'NamedWindow'

Question

import cv2 as cv 
cv.NamedWindow("window_a", cv.CV_WINDOW_AUTOSIZE) 

AttributeError: 'module' object has no attribute 'NamedWindow'

这是什么功能的OpenCV的3模拟？

Answer 1

阅读doc并检查tutorials：

cv2.namedWindow('name') 

By default, the flag is cv2.WINDOW_AUTOSIZE. But if you specify flag to be cv2.WINDOW_NORMAL, you can resize window.