NDLI: Invertible fragile watermarking using fractal code and block-chain

Content Provider	IEEE Xplore Digital Library
Author	Xiaoqiang Li Minhua Chen Huang Zhang Yanrong Min
Copyright Year	2011
Description	Author affiliation: School of Computer Engineering and Science, Shanghai University, China (Xiaoqiang Li; Minhua Chen; Huang Zhang; Yanrong Min)
Abstract	This paper proposes a new watermarking scheme for image tamper detection and recovery, in which the tampered region can be detected and recovered in a fully automated fashion. To resist the vector quantization (VQ) attack and collage attack, all blocks in the original image randomly form a linear chain based on the secret key which is called block-chain. To achieve high-quality recovered image, we perform fractal coding for the original image, then insert the fractal image codes and watermark of an image block into the next block in the block-chain to obtain the watermarked image. By watermark extraction and detection procedure, the proposed scheme can determine whether the watermarked image has been altered and localize the tampered region, and then apply fractal decoding for image recovery. Abundant experimental results are given to show the effectiveness of the proposed scheme.
Starting Page	1030
Ending Page	1034
File Size	734038
Page Count	5
File Format	PDF
ISBN	9781424493043
e-ISBN	9781424493067
DOI	10.1109/CISP.2011.6100337
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-15
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	image authentication block-chain Image coding fractal image code tamper detection and recovery Digital images Authentication Watermarking Resists Fractals
Content Type	Text
Resource Type	Article

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