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Authenticity Preservation with Histogram-Based Reversible Data Hiding and Quadtree Concepts
Department of Electrical Engineering, National University of Kaohsiung, 700 University Road, Kaohsiung 811, Taiwan
Department of Electronics Engineering, National Chiao-Tung University, 1001 Ta-Hsueh Road, Hsinchu 300, Taiwan
* Author to whom correspondence should be addressed.
Received: 27 August 2011; in revised form: 4 October 2011 / Accepted: 6 October 2011 / Published: 13 October 2011
Abstract: 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.
Keywords: reversible data hiding; histogram; quadtree; imperceptibility; capacity; side information
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MDPI and ACS Style
Huang, H.-C.; Fang, W.-C. Authenticity Preservation with Histogram-Based Reversible Data Hiding and Quadtree Concepts. Sensors 2011, 11, 9717-9731.
Huang H-C, Fang W-C. Authenticity Preservation with Histogram-Based Reversible Data Hiding and Quadtree Concepts. Sensors. 2011; 11(10):9717-9731.
Huang, Hsiang-Cheh; Fang, Wai-Chi. 2011. "Authenticity Preservation with Histogram-Based Reversible Data Hiding and Quadtree Concepts." Sensors 11, no. 10: 9717-9731.