Reversible data hiding based on prediction-error histogram shifting and EMD mechanism

Autor:	Zheng-Jun Jing, Jing Fan, Song-Gang Zhao, De-Sheng Fu
Rok vydání:	2014
Předmět:	Arithmetic underflow Similarity (geometry) Pixel business.industry Histogram matching Pattern recognition Image (mathematics) Histogram Information hiding Embedding Artificial intelligence Electrical and Electronic Engineering business Mathematics
Zdroj:	AEU - International Journal of Electronics and Communications. 68:933-943
ISSN:	1434-8411
DOI:	10.1016/j.aeue.2014.04.015
Popis:	This paper proposes a reversible data hiding scheme for gray-level images. The scheme exploits the similarity among adjacent pixels and uses the side-match predictors to obtain prediction-error histogram. Then secret bits are embedded by using histogram shifting method. To achieve high capacity, nonary Exploiting Modification Direction (EMD) algorithm and multi-layer embedding mechanism are used when embedding the secret bits. Additionally, we improve the method of preventing overflow and underflow problems which enhances the compression ability of location map. In the extraction process, we use the same predictors to generate the error histogram, then we can extract the secret bits and recover the original cover image. Experimental results show that our algorithm can achieve better performance compared with the previous related algorithms.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fdb047bb5e3ea2bd37a82889a6e3a142 https://doi.org/10.1016/j.aeue.2014.04.015 Zobrazit plný text záznamu Full Text from ScienceDirect