Reversible Data Hiding using Pixel-Value-Ordering and Difference Expansion in Digital Images

Pixel value ordering (PVO) and difference expansion (DE) are promising methods for digital image steganography. PVO is a steganographic method of digital images that deals with pixel values sorting before the data embedding. In digital image steganography, DE is a method for data protection based on...

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Bibliographic Details
Published in2022 IEEE International Conference on Communication, Networks and Satellite (COMNETSAT) pp. 33 - 38
Main Authors de La Croix, Ntivuguruzwa Jean, Islamy, Chaidir Chalaf, Ahmad, Tohari
Format Conference Proceeding
LanguageEnglish
Published IEEE 03.11.2022
Subjects
Communication networks
Data confidentiality
Data protection
Difference Expansion
Digital images
Digital images steganography
Image quality
Infrastructure
Pixel Value Ordering
Satellites
Sorting
Steganography
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Summary:Pixel value ordering (PVO) and difference expansion (DE) are promising methods for digital image steganography. PVO is a steganographic method of digital images that deals with pixel values sorting before the data embedding. In digital image steganography, DE is a method for data protection based on hiding secret data in differences computed between pixels. Even though the previous methods based on PVO and DE tried to improve the embedding capacity and the stego image quality, improvement is still needed to increase both simultaneously. This work proposes a new method that combines PVO and DE to improve the number of embeddable areas and the embedding capacity in the pixels of a digital image. The experimental results showed that the maximum number of the embeddable regions within used images with the existing methods was increased from 17582 pixels to 131009 pixels, yielding the embedding capacity improvement from 6.70% up to 49.97%.
DOI:10.1109/COMNETSAT56033.2022.9994516