Indian Journal of Science and Technology
DOI: 10.17485/ijst/2014/v7i12.21
Year: 2014, Volume: 7, Issue: 12, Pages: 2133–2139
Original Article
Mehdi Alirezanejad1*, Saeed Amirgholipour2 , Vahid Safari3 , Shahin Aslani4 and Moein Arab4
1 Department of Computer, Firuzkooh Branch, Islamic Azad University, Firuzkooh, Iran; m_arn2004@yahoo.com
2 Department of Computer, Ramsar Branch, Islamic Azad University, Ramsar, I. R. Iran; s.kasmani@iauramsar.ac.ir
3 Department of Computer, Collage of Engineering, Shiraz branch, Islamic Azad University, Shiraz, I. R. Iran; Saffari@iaushiraz.ac.ir
4 Department of Computer, Sharif University of technology international campuse, Kish, I. R. Iran; sh_aslani@kish.sharif.edu
Authenticating in transaction of digital media becomes an active research field now a day. That is emerging due to the illegal use of digital media and hacking by unauthorized users. Spatial domain based watermarking methods are one of the authentication methods. These methods are not generally robust against intentional or unintentional changes in the images. In this paper, a new method is proposed to recover watermark more precisely in the spatial domain watermarking method. A high-boost filtering is utilized before executing watermark extraction procedure. The watermark information is magnified by preforming this filter. Effectiveness of this filter is proved by several experiment. Experimental results show that extraction performance of correlation based watermarking algorithm is improved by preforming this filter before recovery procedure.
Keywords: Digital Image Watermarking, Spatial Domain Watermarking, Correlation Base Watermarking, Sharpening Filter, High Boost Filtering
Subscribe now for latest articles and news.
