Friday, 21 June 2013

OpenCV "cannot open display" problem solved
































































I googed and found that my "cannot open display" problem is a common problem, and different experts give different advice, for different situations, such as using SSH, using VNC, using X11 etc.

What I did to get the display is the following.

1. startx to start an X session.

2. use the LXTerminal to give the following command.

    ./convexhull.

Actually I don't know what exactly startx do.  So I need to google further.

.END


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