Publication Date
3-1-2022
Document Type
Article
Publication Title
Mathematics
Volume
10
Issue
5
DOI
10.3390/math10050841
Abstract
Reversible data hiding schemes hide information into a digital image and simultaneously increase its contrast. The improvements of the different approaches aim to increase the capacity, contrast, and quality of the image. However, recent proposals contrast the image globally and lose local details since they use two common methodologies that may not contribute to obtaining better results. Firstly, to generate vacancies for hiding information, most schemes start with a preprocessing applied to the histogram that may introduce visual distortions and set the maximum hiding rate in advance. Secondly, just a few hiding ranges are selected in the histogram, which means that just limited contrast and capacity may be achieved. To solve these problems, in this paper, a novel approach without preprocessing performs an automatic selection of multiple hiding ranges into the histograms. The selection stage is based on an optimization process, and the iterative-based algorithm increases capacity at embedding execution. Results show that quality and capacity values overcome previous approaches. Additionally, visual results show how greyscale values are better differentiated in the image, revealing details globally and locally.
Funding Number
SIP 20220748
Funding Sponsor
Instituto Politécnico Nacional
Keywords
Contrast enhancement, Histogram shifting, Image processing, Information security
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Department
Electrical Engineering
Recommended Citation
Eduardo Fragoso-Navarro, Manuel Cedillo-Hernandez, Francisco Garcia-Ugalde, and Robert Morelos-Zaragoza. "Reversible Data Hiding with a New Local Contrast Enhancement Approach" Mathematics (2022). https://doi.org/10.3390/math10050841
