title: Does OpenCv have a constant with its version number?
body: <p>I ask this because I have a couple installed and have some doubts if I am loading the right dynamic libraries.</p>
  
  <p>This question is slightly different from these as they answer what is installed and not what your application is linking:</p>
  
  <p><a href="https://stackoverflow.com/q/8804064/1085483">Find OpenCV Version Installed on Ubuntu</a> </p>
  
  <p><a href="https://stackoverflow.com/q/2422514/1085483">How to check for openCV</a></p>