NDLI: A wavelet-based semi-fragile watermarking with recovery mechanism

Content Provider	IEEE Xplore Digital Library
Author	Min-Jen Tsai Chih-Cheng Chien
Copyright Year	2008
Description	Author affiliation: Inst. of Inf. Manage., Nat. Chiao Tung Univ., Hsinchu (Min-Jen Tsai; Chih-Cheng Chien)
Abstract	This paper studied the wavelet transformation based watermarking tamper detection and recovery scheme. By the property of discrete wavelet transform, we design the semi-fragile watermark from low-frequency band and embedding the watermark into the high-frequency band by the help of human visual system (HVS). The watermarked image still preserves high image quality after the embedding of the semi-fragile watermark and the image authentication system is able to locate precisely any malicious alteration made to the image. Our novel design can restore the altered or destroyed regions from the attacked images and allow the users to know what the original content was in the manipulated areas. We also analyze the robustness for mild modification like JPEG compression and channel additive white Gaussian noise (AWGN) and fragility to malicious attack. In summary, this scheme can resist the mild modifications of digital image and be able to detect the malicious modifications precisely.
Starting Page	3033
Ending Page	3036
File Size	963883
Page Count	4
File Format	PDF
ISBN	9781424416837
DOI	10.1109/ISCAS.2008.4542097
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-18
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Watermarking AWGN Discrete wavelet transforms Humans Visual system Image quality Authentication Image restoration Noise robustness Transform coding wavelet semi-fragile tamper detection tamper recovery copyright protection
Content Type	Text
Resource Type	Article

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