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Reversible data hiding based on histogram and prediction error for sharing secret data

Cybersecurity 2023年第4期6卷 109-122页

作者： Chaidir Chalaf Islamy Tohari Ahmad Royyana Muslim Ijtihadie Department of Informatics Institut Teknologi Sepuluh Nopember(ITS)Kampus ITS Keputih SukoliloSurabaya60111Indonesia

With the advancement of communication technology,a large number of data are constantly transmitted through the internet for various purposes,which are prone to be illegally accessed by third ***,securing such data is crucial to protect the transmitted information from falling into the wrong *** data protection schemes,Secret Image Sharing is one of the most popular *** protects critical messages or data by embedding them in an image and sharing it with some ***,it combines the security concepts in that private data are embedded into a cover image and then secured using the secret-sharing *** its advantages,this method may produce noise,making the resulting stego file much different from its ***,the size of private data that can be embedded is *** research works on these problems by utilizing prediction-error expansion and histogram-based approaches to embed the *** recover the cover image,the SS method based on the Chinese remainder theorem is *** experimental results indicate that this proposed method performs better than similar methods in several cover images and scenarios.

关键词： Data hiding Secret image sharing prediction error expansion Histogram-based embedding Network infrastructure

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Reversible Data Hiding Based on Pixel-Value-Ordering and Pixel Block Merging Strategy

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Computers, Materials & Continua 2019年第6期59卷 925-941页

作者： Wengui Su Xiang Wang Yulong Shen College of Computer Science and Technology Xidian UniversityXi’an710071China Guangxi Key Laboratory of Manufacturing System&Advanced Manufacturing Technology College of Mechanical EngineeringGuangxi UniversityNanning530004China College of Telecommunications Engineering Xidian UniversityXi’an710071China

With the reversible data hiding method based on pixel-value-ordering,data are embedded through the modification of the maximum and minimum values of a block.A significant relationship exists between the embedding performance and the block *** pixel-value-ordering methods utilize pixel blocks with a fixed size to embed data;the smaller the pixel blocks,greater is the embedding ***,it tends to result in the deterioration of the quality of the marked ***,a novel reversible data hiding method is proposed by incorporating a block merging strategy into Li et al.’s pixel-value-ordering method,which realizes the dynamic control of block size by considering the image ***,the cover image is divided into non-overlapping 2×2 pixel ***,according to their complexity,similarity and thresholds,these blocks are employed for data embedding through the pixel-value-ordering method directly or after being emerged into 2×4,4×2,or 4×4 sized ***,smaller blocks can be used in the smooth region to create a high embedding capacity and larger blocks in the texture region to maintain a high peak signal-to-noise *** results prove that the proposed method is superior to the other three advanced *** achieves a high embedding capacity while maintaining low distortion and improves the embedding performance of the pixel-value-ordering algorithm.

关键词： Reversible data hiding pixel-value-ordering prediction error expansion dynamic block partition

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