title: QR DETECTION WITH OPENCV AND VISUAL STUDIO
body: <p>I need to develop an application which detects QR codes through a webcam. I have been working with OpenCV and Visual Studio 2010, detecting squares in general. Then I found a library called "libdecodeqr" which you can use with OpenCV. With this library there is an example (the name is "webcam") to detect and decode QR codes using a webcam and it works succesfully, but if there are various QR codes on the screen or paper, the application only recognizes a QR code,not the rest. I would like to know where I can find the algorithm to detect QR codes (something similar to the "square.cpp" in OpenCV) or the steps to develop it.</p>
  
  <p>Thanks in advance.   </p>