Quick Response Code (QR Code) / Matrix Barcode Creator
Return a QR encoded string as a matrix
Return a QR encoded string as an x, y, z data.frame
Return a QR encoded string as a base 64 encoded inline png
Return a QR encoded string as a raster object
Encodes a string as a QR code
Quick Response Code (QR Code) / Matrix Barcode Creator
Quick Response codes (QR codes) are a type of matrix bar code and can be used to authenticate transactions, provide access to multi-factor authentication services and enable general data transfer in an image. QR codes use four standardized encoding modes (numeric, alphanumeric, byte/binary, and kanji) to efficiently store data. Matrix barcode generation is performed efficiently in C via the included 'libqrencoder' library created by Kentaro Fukuchi.