python+opencv读取并显示图像报错

mport cv2 as cv
image=cv.imread('~/Desktop/1.png')
cv.imshow('picture',image);
cv.waitKey(0)
cv.destroyAllWindows()

报错:

cv.imshow('picture',image);
cv2.error: OpenCV(4.2.0) /io/opencv/modules/highgui/src/window.cpp:376: error: (-215:Assertion failed) size.width>0 && size.height>0 in function 'imshow'

问题时图像的路径写法有问题

改为绝对路径和相对路径均可以

import cv2 as cv
image=cv.imread('/home/kunlong/Desktop/1.png')
cv.imshow('picture',image);
image2=cv.imread('../../Desktop/1.jpeg')
cv.imshow('picture2',image2)
cv.waitKey(0)
cv.destroyAllWindows()