The original image captured by the camera is stored in /camera_images and the new qr code is saved to /qrcodes. Finally, opencv is used again to test the newly generated qr code data against the data ...

Bar codes are making a comeback. Well sort of. They're not your traditional bar code. I had an opportunity to speak with execs at a Long Beach, Calif.-based advertising agency attempting to cozy-up to ...

The codes are designed to hold a relatively large amount of data in a small space — just under three kilobytes of binary data, or more than 4,000 letters and numbers.

A QR (Quick Response) code is a kind of matrix code that possesses the ability to hold information about a product or service. It consists of three square structures in its corners and can include ...

First you need to decide what format of code you want to use – 2D Data Matrix and QR Codes are the most common and can be read by the most readers. They can be created by many websites for free use.

Image credit: Mitya Ivanov/Unsplash Two-dimensional (2D) barcodes, more prominently recognized as QR codes, are back in fashion—with much demand for just about 'contactless' everything these days.

Static vs. dynamic QR codes. QR codes vary in design depending on the encoded data and function, and can be categorized primarily in two ways: static and dynamic. A static QR code cannot be ...