hp home products & services support solutions how to buy
hp logo - invent
corner hp labs corner
search search
contact hp contact hp
hp labs home hp labs home
about hp labs about hp labs
research research
news and events news and events
careers @ labs careers @ labs
technical reports technical reports
worldwide sites worldwide sites
corner corner
HP Labs Technical Reports

Click here for full text: PDF

A Visually Significant Two Dimensional Barcode

Shaked, Doron; Levy, Avi; Baharav, Zachi; Yen, Jonathan


Keyword(s): 2-D Barcode; information hiding; watermarking

Abstract: 2-D barcodes are two-dimensional graphical patterns that encode information. They allow for higher information density than the standard one-dimensional barcodes, but usually have an unpleasant appearance . This report describes a system, consisting of an encoder and a decoder, producing a Visually Significant 2-D Barcode (VSB). The VSB encodes information in a 2-D pattern that is visually similar to a pre-specified 2-D gray scale image. It enjoys the high information density typical to 2-D barcodes but avoids their unpleasant appearance.

28 Pages

Back to Index

printing icon
printing instructions printing instructions
Privacy Statement Legal Notices © 1994-2002 Hewlett-Packard Company