A new difference expansion transform in triplets for reversible data hiding

被引：6
|
作者：
Chrysochos, E. [1 ]
Fotopoulos, V. [1 ]
Skodras, A. N. [1 ]
机构：
[1] Hellen Open Univ, Sch Sci & Technol, Digital Syst & Media Comp Lab, GR-26222 Patras, Greece
来源：
INTERNATIONAL JOURNAL OF COMPUTER MATHEMATICS | 2011年 / 88卷 / 10期
关键词：
3C2B; difference expansion; lossless data hiding; triplets; DCT;
D O I：
10.1080/00207160.2010.539210
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
Difference expansion (DE) has been widely used for reversible data hiding. In this paper, a novel transform which embeds two bits of information in a triplet of coefficients is presented. This transform can be applied in spatial or frequency domains and induces minimum distortion to the initial data or coefficients. The proposed method outperforms all similar DE methods using triplets in terms of computational cost, visual quality and bitrate.
引用
收藏
页码：2016 / 2025
页数：10
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