QR codes have four error correction capabilities: Level L, Level M, Level Q, and Level H. Level L allows the original information to be preserved even if a maximum of ...

There are some features we use almost every day but do not know anything about the feature. One such feature is QR codes. We use it almost every day as we travel, eat, shop and so on. A few years ago, ...

QR codes, which can be easily read with a smartphone camera, are used in various areas of daily life, such as as links to websites and for cashless payments. A page has been published that provides an ...