New Zealand Journal of Agricultural Research abstracts
Research on embedding and extracting methods for digital watermarks
applied to QR code images
Ming Sun*
Jibo Si
College of Information and Electrical Engineering
China Agricultural University
PO Box 63, 17 Tsinghua East Road, Haidian District
Beijing, 100083, PR China
Shuhuai Zhang
Faculty of Agriculture and Life Science
Hirosaki University
Hirosaki 036-8561, Japan
*Author for correspondence: drmingsun@163.com
Abstract Digital watermarking is a new technology capable of
embedding information into digital multimedia. The objective in this
paper is to develop a scientific algorithm which can be used in a QR
code image to improve its ability to deal with pirates. Therefore, the
research has great theoretical significance and practical value. In
order to employ digital watermarking in QR code images, by considering
the features of QR code we propose two kinds of discrete wavelet
transform based algorithms which can be used in QR code images. The
first algorithm is to embed a random sequence in the QR code, whose
correlation coefficient is detected. The second algorithm is to embed
an image which is detected. Lastly, some suggestions for the further
developments of this technology are offered based on the analyses and
discussions.
Keywords digital watermarking; discrete
wavelet transform; QR
code
A07102; Online publication date 31 January 2008; Received and
accepted 10 August 2007
New Zealand Journal of Agricultural Research, 2007, Vol. 50:
861–867
0028–8233/07/5005–0861 © The Royal Society of New Zealand 2007
PDF file of entire paper: Print-quality
(1107K) | screen-quality (855K)
This year's abstracts |
Journal home page |
All abstracts |
Publishing home page
