Reversible data hiding in JPEG image based on DCT frequency and block selection

被引：85

作者：

Hou, Dongdong ^{[1
]}

Wang, Haoqian ^{[1
]}

Zhang, Weiming ^{[1
]}

Yu, Nenghai ^{[1
]}

机构：

[1] Univ Sci & Technol China, Sch Informat Sci & Technol, Hefei 230027, Anhui, Peoples R China

来源：

SIGNAL PROCESSING | 2018年 / 148卷

关键词：

JPEG image; DCT block; Frequency selection; Block selection; Reversible data hiding; PREDICTION-ERROR EXPANSION; SCHEME;

D O I：

10.1016/j.sigpro.2018.02.002

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The joint photographic experts group (JPEG) is the most popular format of digital image. In this paper, a novel reversible data hiding scheme based on JPEG image is proposed. In JPEG image, quantified DCT (discrete cosine transform) coefficients with different frequencies will yield different capacities and embedding distortions. To reduce the total distortion for the marked image, we select coefficients from frequencies yielding less distortions for embedding, and then an advanced block selection strategy is applied to always modify the block yielding less simulated distortion firstly until the given payloads are completely embedded. Experimental results show that the proposed method can keep good visual quality with small bitstream expansion. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：41 / 47

页数：7

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