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Two-dimensional histogram-based reversible contrast enhancement using bi-histogram equalization
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DOI：10.1016/j.displa.2023.102580.png)
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摘要
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In recent years, the reversible data hiding with contrast enhancement (RDH-CE) technique has been proposed and developed significantly; it can perform CE for images and restore the host image losslessly. To improve the embedding rate, CE capability, and visual quality, this paper proposes a reversible CE scheme based on 2D histogram equalization, which maintains the image quality and low brightness distortion with fewer iterations and has a high embedding rate and CE capability. Specifically, to prevent image brightness distortion, the 2D histogram is separated to obtain two 2D sub-histograms before histogram shifting. The dimension with the highest embedding capacity is dynamically selected for the embedding operation in each iteration, and the two-sided histogram equalization and information embedding are performed on the separated sub-histograms. The proposed method is evaluated on two datasets, and the results show that the method has high embedding and CE capabilities with low iteration and good visualization.
Keyword:
Reversible data hiding
Contrast enhancement
2D histogram
Histogram equalization
Image quality
期刊
IF:
3.4
论文数:
2.3K
被引数:
3.2K
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引用论文
Reversible Data Hiding With Image Contrast Enhancement Based on Two-Dimensional Histogram Modification.png)
IEEE ACCESS
OAAI
IEEE ACCESSIF3.6
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