標題: Authenticity Preservation with Histogram-Based Reversible Data Hiding and Quadtree Concepts
作者: Huang, Hsiang-Cheh
Fang, Wai-Chi
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
關鍵字: reversible data hiding;histogram;quadtree;imperceptibility;capacity;side information
公開日期: 1-十月-2011
摘要: With the widespread use of identification systems, establishing authenticity with sensors has become an important research issue. Among the schemes for making authenticity verification based on information security possible, reversible data hiding has attracted much attention during the past few years. With its characteristics of reversibility, the scheme is required to fulfill the goals from two aspects. On the one hand, at the encoder, the secret information needs to be embedded into the original image by some algorithms, such that the output image will resemble the input one as much as possible. On the other hand, at the decoder, both the secret information and the original image must be correctly extracted and recovered, and they should be identical to their embedding counterparts. Under the requirement of reversibility, for evaluating the performance of the data hiding algorithm, the output image quality, named imperceptibility, and the number of bits for embedding, called capacity, are the two key factors to access the effectiveness of the algorithm. Besides, the size of side information for making decoding possible should also be evaluated. Here we consider using the characteristics of original images for developing our method with better performance. In this paper, we propose an algorithm that has the ability to provide more capacity than conventional algorithms, with similar output image quality after embedding, and comparable side information produced. Simulation results demonstrate the applicability and better performance of our algorithm.
URI: http://dx.doi.org/10.3390/s111009717
http://hdl.handle.net/11536/14763
ISSN: 1424-8220
DOI: 10.3390/s111009717
期刊: SENSORS
Volume: 11
Issue: 10
起始頁: 9717
結束頁: 9731
顯示於類別:期刊論文


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  1. 000296577000037.pdf