DocumentCode :
29119
Title :
Adaptive Self-Embedding Scheme With Controlled Reconstruction Performance
Author :
Korus, Pawel ; Dziech, Andrzej
Author_Institution :
Dept. of Telecommun., AGH Univ. of Sci. & Technol., Krakow, Poland
Volume :
9
Issue :
2
fYear :
2014
fDate :
Feb. 2014
Firstpage :
169
Lastpage :
181
Abstract :
In this paper, we address the problem of adaptive self-embedding, where the reconstruction quality is controlled individually for different fragments of a digital image. We focus on the impact of incorporating content adaptivity features on the restoration success conditions and the achievable reconstruction performance. We analyze the problem theoretically and validate the obtained results experimentally with a fully functional selfembedding scheme. Our analysis shows that introduction of multiple reconstruction profiles, even with significantly lower restoration fidelity, does not need to improve the achievable tampering rate bounds. The obtained fine-grained control over the reconstruction process is exploited to provide guarantees on certain performance aspects. Based on the derived theoretical model, we propose a procedure for optimization of the overall reconstruction quality given constraints on the desired target tampering rate and the required quality level for selected image fragments. Such guarantees are of principal importance in a number of applications.
Keywords :
image reconstruction; image restoration; image watermarking; optimisation; adaptive self-embedding scheme; content adaptivity features; controlled reconstruction performance; digital image fragments; fine-grained control; fully-functional self-embedding scheme; performance aspects; quality level; reconstruction profiles; reconstruction quality control; reconstruction quality optimization; restoration fidelity; tampering rate bounds; Context; Decoding; Discrete cosine transforms; Image reconstruction; Image restoration; Payloads; Watermarking; Content authentication; content adaptation; content reconstruction; digital watermarking; self-embedding;
fLanguage :
English
Journal_Title :
Information Forensics and Security, IEEE Transactions on
Publisher :
ieee
ISSN :
1556-6013
Type :
jour
DOI :
10.1109/TIFS.2013.2295154
Filename :
6685824
Link To Document :
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