QR code data is stored in the data area of the code. This data area is represented by the grey part in Figure 11. The information in the data area is encoded into binary numbers, using ‘0’ and ‘1’ based on a specific encoding rule. These binary numbers are then converted into black and white cells, which are arranged in a specific pattern to form the QR code.
The data area of a QR code is where the actual information is stored. It can contain a variety of data types, such as text, URLs, contact information, or even multimedia content. The data is organized and structured in a way that allows it to be easily read and decoded by QR code scanners.
The encoding rule used in QR codes ensures that the data is accurately represented in binary form. This encoding process involves converting each character or piece of data into a binary code, which consists of a series of ‘0’s and ‘1’s. These binary codes are then mapped to black and white cells in the QR code.
The arrangement of black and white cells in the QR code is not random. It follows a specific pattern known as the QR code layout. This layout includes various elements, such as alignment patterns, timing patterns, and positioning markers, which help scanners accurately read and decode the data.
The data area of a QR code is typically surrounded by quiet zones, which are areas of white space that provide a buffer between the code and any surrounding graphics or text. These quiet zones help scanners differentiate between the QR code and its surroundings, ensuring accurate and reliable scanning.
It is important to note that the size of the data area in a QR code can vary depending on the version and error correction level of the code. Higher version codes and codes with higher error correction levels generally have larger data areas, allowing for more information to be stored.
The data area of a QR code is where the actual information is stored. It is represented by the grey part in the code and is encoded into binary numbers using a specific encoding rule. These binary numbers are then converted into black and white cells and arranged in a specific pattern to form the QR code. The data area can contain various types of information and is surrounded by quiet zones to ensure accurate scanning.