摘要
创新点
本文提出了一种利用线性像素预测误差的空域隐写载体选择指标, 与现有方法相比, 与隐写分析正确率相关系数更高。 主要创新点在于:
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1.
利用线性模型对图像建模, 参数更灵活, 其预测误差 LPE 比现有方法更有效地指示该类图像隐写分析的正确率。
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2.
利用最小二乘估计参数, 消除了图像间纹理模式的差异, 能有效用于传统的与高隐蔽性的空域隐写, 适应性好。
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3.
该指标的计算是开环的, 耗时少, 不至于对隐写造成计算负担, 可以用在智能设备上。
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Huang, W., Zhao, X. Novel cover selection criterion for spatial steganography using linear pixel prediction error. Sci. China Inf. Sci. 59, 059103 (2016). https://doi.org/10.1007/s11432-016-5530-z
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DOI: https://doi.org/10.1007/s11432-016-5530-z