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Random grids-based visual secret sharing with improved visual quality via error diffusion
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DOI：10.1007/s11042-014-2080-5.png)
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摘要
En 中文
In this paper, a visual secret sharing scheme for case (k, n) based on random noise balanced error diffusion (RNBED) is proposed. The proposed scheme satisfies (k, n) threshold, requiring no codebook design, and avoiding the pixel expansion problem. In addition, it improves existing schemes in terms of contrast and evenness, which are two important metrics for evaluating the visual quality of recovered secret. Experimental results and security analyses show the effectiveness of the proposed scheme. Comparisons with previous approaches show the advantages of the proposed scheme.
Keyword:
Visual secret sharing
Random grids
Boolean operations
Visual quality
Error diffusion
期刊
IF:
3
论文数:
2.0W
被引数:
3.2W
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分享收藏Improving the visual quality of random grid-based visual secret sharing提高随机网格视觉秘密共享的视觉质量.png)
SIGNAL PROCESSING
SIGNAL PROCESSINGIF3.6
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