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Distortion-free secret image sharing method with two meaningful shadows

机译:具有两个有意义的阴影的无失真秘密图像共享方法

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摘要

In this study, the authors propose a novel (2, 2) secret image sharing scheme in which a control parameter ω is used to change the payload easily. Since the modification of the original cover pixel values can be limited within a small range according to the value of ω, the shadow images can achieve excellent visual quality. In the extracting process, the secret image and the cover image can be reconstructed correctly. Experimental results showed that the authors' proposed scheme can enhance the embedding rate significantly, up to 3 bpp if ω is set to 6. In addition, the peak signal-to-noise ratio values of the shadow images are still satisfactory when the embedding rate approaches a very high value. Comparisons demonstrated that their proposed scheme outperforms other schemes that have been developed recently in terms of the embedding rate and the visual quality.
机译:在这项研究中,作者提出了一种新颖的(2,2)秘密图像共享方案,其中使用控制参数ω轻松更改有效载荷。由于可以根据ω的值将原始覆盖像素值的修改限制在很小的范围内,因此阴影图像可以实现出色的视觉质量。在提取过程中,可以正确地重建秘密图像和封面图像。实验结果表明,作者提出的方案可以显着提高嵌入率,如果将ω设置为6,则可以提高3 bpp。此外,当嵌入率高时,阴影图像的峰值信噪比值仍然令人满意。接近很高的价值。比较表明,在嵌入率和视觉质量方面,他们提出的方案优于最近开发的其他方案。

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