Qt : Installing OpenCV in Qt Platform

QTCreator is the open source cross-platform IDE from Nokia’s QT project, and with its ease of use, complete integration with the QT library, and included the compiler, it has proven to be a complete solution. After downloading the latest version of Qt-Creator and openCV library w the following instructions to configure the OpenCV library

• First, install the Qt-Creator and extract OpenCV at any location. For convenience I have extracted the OpenCV in C drive.
• This creates the project. Now open the projectName.pro file. You will find something like this…
• Restart the computer — This step is required for the PATH to be registered.  Run QTCreator
• Start a New Project (File -> New File or Project…  Then pick a QT C++ project, could be QT GUI  application or Console application, then follow the instructions to create the new project)
• Now that you have a new project, you should have a view like a figure below.

  

• All you have left to do, is to add the INCLUDEPATH and LIBS lines to your pro file, like the ones shown in the figure below, but remember to use the actual directory where you installed OpenCV.  (Backward slashes “” are used to add multiple lines)

  INCLUDEPATH += "C:OpenCV2.0include"
  LIBS += "C:OpenCV2.0lib*.a"

• I have used OpenCV2.0. And that’s all. You are ready to start with OpenCV in Qt.