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Region based interpolation error expansion algorithm for reversible image watermarking
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DOI：10.1016/j.asoc.2015.04.030.png)
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摘要
En 中文
In this paper, we propose a new reversible image watermarking method based on interpolation-error expansion called region based interpolation error expansion (RBIEE). We improved Thodi's prediction error expansion (PEE) technique by using a novel interpolation algorithm which exploits interpixel correlation better. Furthermore, interpolation error histogram is divided into two regions. The parameters of each region are determined separately and iteratively to reach a given embedding capacity more precisely. However, adaptive embedding strategy is utilized to get better capacity-distortion performance. Advantage of the proposed method over the other state-of-the-art methods in terms of capacity and visual quality is demonstrated experimentally. (C) 2015 Elsevier B.V. All rights reserved.
Keyword:
Watermarking
Reversible image watermarking
Interpolation-error expansion
Region based interpolation-error expansion
Adaptive embedding
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期刊
IF:
6.6
论文数:
1.4W
被引数:
4.8W
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引用论文
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