图像识别学习笔记

Q1:

terminate called after throwing an instance of 'cv::Exception'
  what():  OpenCV(4.2.0) /home/yongqiang/opencv_workspace/OpenCV/modules/highgui/src/window.cpp:634: error: (-2:Unspecified error) The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Cocoa support. If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script in function 'cvNamedWindow'
 
已放弃 (核心已转储)
1
2
3
4