opencv读图片错误，已解决

could not loag image...
terminate called after throwing an instance of ‘cv::Exception‘
  what():  OpenCV(4.0.0-pre) /home/w1/work/depends/opencv/modules/highgui/src/window.cpp:350: error: (-215:Assertion failed) size.width>0 && size.height>0 in function ‘imshow‘

Aborted (core dumped)

把图片的相对路径修改为绝对路径，就好啦。

Mat src = imread("/home/w1/work/virtualAD/ad.jpg");

OK

原文地址：https://www.cnblogs.com/wongyi/p/9948829.html