کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
529673 869693 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Improved PVO-based reversible data hiding: A new implementation based on multiple histograms modification
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر چشم انداز کامپیوتر و تشخیص الگو
پیش نمایش صفحه اول مقاله
Improved PVO-based reversible data hiding: A new implementation based on multiple histograms modification
چکیده انگلیسی


• An improved pixel-value-ordering (PVO) based reversible data hiding based on multiple histograms modification (MHM) is proposed.
• The new algorithm is considered in a framework that is based on MHM and parameterized by the selection of expansion bins.
• The proposed MHM determination is a methodology of adaptive histogram modification, and is applicable for the existing techniques of histogram generation.

Pixel-value-ordering (PVO) technique is based on ranking the pixels within a block and often employed in reversible data hiding (RDH) to preserve the image fidelity. In this paper, an improved PVO-based algorithm is proposed to achieve a high-performance RDH. We formulate the PVO embedding as a problem of multiple histograms modification (MHM) and make two contributions. Firstly, the existing PVO-based algorithms are generalized in an MHM form and the systematic analysis of performance is offered by considering the parameter determination. Secondly, based on the new framework, an improved implementation of PVO embedding is proposed to adaptively determine the MHM manner by solving the distortion minimization of multiple histograms, which can handle different characteristics in image areas. Experimental results show the superiority of the new algorithm over the state-of-the-art methods.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Visual Communication and Image Representation - Volume 38, July 2016, Pages 328–339
نویسندگان
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