ubuntu18.04+opencv4.1.2 安装 If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config
问题:Thefunctionisnotimplemented.RebuildthelibrarywithWindows,GTK+2.xorCocoasupport.IfyouareonUbuntuorDebian,installlibgtk2.0-devandpkg-config,thenre-runcmakeorconfigurescriptinfunction'cvShowImage'解决办法