Over the weekend, I embarked on a project to create a 3D printed QR code that guests at our house could scan to gain access to our guest wireless network. Why 3D you might ask? Well, that’s how geeks ...

A Java code (images/QRPatternPositions.java) using the zxing package is used to extract the patter positions from QR code photos. The result is stored in the file pattern_positions.txt. Python codes ...

QR codes could generate 3D images on phones – no internet required By Ben Coxworth. November 14, 2014 ... Frankly, I don't get the point of using QR codes in this application.