not definition

[twyt]

when I compile the TILT.cpp, Variables such as center.x center.y E W.diag() region[0] region_tau, is not definition.what can I do?

[Smorodov]

They are defined like:
Point2f center=(pts[0]+pts[2])*0.5;
it is standard opencv's datatype variables.

What environment do you use?
What compiler output you getting?

[twyt]

windows 7 and visual studio 2010!
I had solved the problems above, as the sentences had been commented in your code.
Now,I have a problem with the lib of opencv,which is "can not find the .dll", while it can be compilered successfully

[twyt]

Thank you very much for your reply.

[Smorodov]

Just add to path variable the path to opencv's dll's, or simply copy them to your .exe file location.

[twyt]

Thank you！At present,the dlls'problem have been proved.