A QR Code consists of black squares arranged in a square grid on a white background, which can be read by an imaging device such as a camera on a smart phone. The data is extracted, then interpreted, from patterns that are present in both horizontal and vertical components of the image.
This technology has now become one of the most used types of two-dimensional barcodes.
QR Code (abbreviated from Quick Response Code) is a two-dimensional barcode that was first designed for the automotive industry in Japan to track vehicles during manufacturing and allow for high-speed component scanning.
Now, QR Codes are used in a much broader context, including commercial tracking and convenience-oriented applications aimed at simple use by consumers through the use of mobile phones.
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