1 October 2010 Authentication and recovery of an image by sharing and lattice-embedding
Sian-Jheng Lin, Ja-Chen Lin
Author Affiliations +
Abstract
Based on sharing and lattice-embedding techniques, we present an authentication-recovery method for an image. The recovery data are shared among many shadows, then lattice-embedding is utilized to embed each shadow in the discrete cosine transform domain of an 8×8 block. The proposed method can resist certain content-preserving operations such as JPEG compression, Gaussian noise, and brightness adjustment, up to a tolerance level controlled by a quantization parameter value. The method can also resist certain security attacks such as a cut-and-paste attack, a collage attack, and a vector quantization attack. Compared with previous works, the proposed method has following major advantages and novelty: (1) the method does not require prediction of the tampering trace, and the tampered blocks are always recovered as long as the number of valid blocks reaches a threshold and (2) lattice-embedding yields smaller distortion than does parity-check quantization, and the latter was often used in reported works.
©(2010) Society of Photo-Optical Instrumentation Engineers (SPIE)
Sian-Jheng Lin and Ja-Chen Lin "Authentication and recovery of an image by sharing and lattice-embedding," Journal of Electronic Imaging 19(4), 043008 (1 October 2010). https://doi.org/10.1117/1.3500799
Published: 1 October 2010
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CITATIONS
Cited by 3 scholarly publications.
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KEYWORDS
Image restoration

Digital watermarking

Image compression

Image quality

Quantization

Distortion

Remote sensing

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