Monday, 1 November 2010

Wseas Transactions

New Subscription to Wseas Transactions

The following information was submitted:

Transactions: INTERNATIONAL JOURNAL of COMPUTERS
Transactions ID Number: 19-629
Full Name: Hector Perez
Position: Professor
Age: ON
Sex: Male
Address: ESIME Culhuacan, National Polytechnic Institute, Av. Santa Ana 1000, Mexico City, 04430 DF
Country: MEXICO
Tel: 5255-5656-2058
Tel prefix: 52
Fax: 5255-5656-2058
E-mail address: hmpm@prodigy.net.mx
Other E-mails: hmperezm@ipn.mx,mnakano@ipn.mx
Title of the Paper: Image authentication and recovery using BCH error correcting coding
Authors as they appear in the Paper: Jose Mendoza-Noriega, Brian M. Kurkoski, Mariko Nakano-Miyatake, Hector Perez-Meana
Email addresses of all the authors: pentecostes7@msn.com,kurkoski@ice.uec.ac.jp,mnakano@ipn.mx,hmpm@prodigy.net.mx
Number of paper pages: 8
Abstract: In this paper an image authentication and recovery algorithm is proposed where the modified areas in an image are detected, and in addition an approximation of the original image, called a digest image Cdig, is recovered. Two different watermarks are used. One semi-fragile watermark w1 is used for the authentication phase. The second watermark wdig, is obtained by compressing the digest image Cdig using an arithmetic code, then redundancy is added by applying a BCH error correcting code (ECC). Finally both watermarks are embedded in the integer wavelet transform (IWT) domain. The proposed scheme is evaluated from different points of view: watermark imperceptibly, payload, detection of the tamper area and robustness against some non-intentional attacks. Experimental results show the system detects accurately where the image has been modified, and it is able to resist large modifications; for example, the system can tolerate modifications close to 10% of the total pi!
xels of the watermarked image and recover the 100% of the digest image. The watermarked image and recovered digest image have good quality, with average PSNR 39.88 dB and 28.63 dB, respectively, using ECC rate 0.34. The proposed system also is robust to noise insertion. It is able to tolerate close to 5% errors produced by salt and pepper noise insertion, while recovering 100% of the digest image.
Keywords: Semi-fragile watermark, recovery capability, DCT, Integer Wavelet Transform, BCH error-correction.
EXTENSION of the file: .pdf
Special (Invited) Session: Image authentication based on DCT with recovery capability
Organizer of the Session: ACS-23
How Did you learn about congress: Mario Gonzalez-Lee, mglee@ieee.org, kazuhiko Yamaguchi, yama@ice.uec.ac.jp,Ruth Aguilar-Ponce, rmariela@fciencias.uaslp.mx
IP ADDRESS: 189.146.20.179