Graphical indicia

We present an authenticable graphical barcode symbology, and describe a system for its reliable encoding and decoding. The graphical barcode is generated by modulating halftone patterns according to the message to be embedded in the barcode during the rendering of a base image. The generated barcode has the appearance of the base image, and when it is printed and scanned back in, the message can be retrieved. A graphical indicium is a graphical barcode embedded with a digitally signed message such that the integrity and authenticity of the message can be verified.

• Type: Conference
• Year: 2003
• Where: ICIP
• Authors: Doron Shaked, Zachi Baharav, Avi Levy, Jonathan Yen, Chit Wei Saw
• Keywords: Generated Barcode, Graphical Barcode Symbology, Graphical Indicium, ICIP 2003, Image Processing