کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6879793 1443156 2014 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reversible data hiding based on prediction-error histogram shifting and EMD mechanism
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
Reversible data hiding based on prediction-error histogram shifting and EMD mechanism
چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: AEU - International Journal of Electronics and Communications - Volume 68, Issue 10, October 2014, Pages 933-943
نویسندگان
, , , ,