Overlapping Difference Expansion Reversible Data Hiding

Chin-Feng Lee ； Jau-Ji Shen ； Chin-Yung Wu

《International Journal of Network Security》 25卷2期 (2023/03) Pp. 201-211

https://doi.org/10.6633/IJNS.202303_25(2).03

摘要

Rapid technological development has made information transmission convenient by using the internet in the shortest possible time. Despite this, there is an increase in information security problems. Therefore, the need for information hiding is of paramount importance to the public. The difference expansion (DE) embedding technology has good embedding capacity in reversible data hiding (RDH) technology. However, the DE embedding technique creates problems in the multi-layer embedding process. This study proposes an embedding strategy of horizontal overlapping and vertical overlapping difference expansion (also called HoVo_DE for short) to enhance the information embedding of the DE series methods and improve the problem of difference expansion cascading caused by multiple DE embedding. The experimental results show that the proposed strategy reduces the distortion of image quality and has a higher embedding capacity than other strategies.

關鍵字

Data Hiding ； Reversible Data Hiding ； Difference Expansion (DE) ； Improved Reduced Difference Expansion (IRDE)