Wikitude

How to recognize an image in a specified screen area?

Hi Jack,

We are using ZBar for our Plugins API, QR Barcode detection so what you could do is change the code there in a way that would allow you to have the functionality you desire. Maybe this article could provide you with some further insights http://zbar.sourceforge.net/. 

As an alternative, you could use another library for reading bar codes and integrate it with Wikitude SDK.

I hope this helps. Thanks!

I'll draw a rectangle at the center of the screen, and let the user scan the QR code. QR code outside the rectangle won't be recognized. Possible to do?