用于数据嵌入的空间域纹理合成

S. Patil, Rane Charushila Vijay
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引用次数: 0

摘要

秘密信息通过隐写术嵌入到某种掩蔽介质中。信息的内容以及信息的存在必须是攻击者无法检测到的。隐写术通常是通过稍微改变封面图像的像素值来完成的。我们使用纹理合成过程来嵌入数据,而不是改变像素值。为了选择合适的拼接片,需要考虑拼接片连接边的相关性。候选patch的能量是在数据提取过程中用来验证候选patch的唯一性和识别patch的参数。除能量外,还对均值、方差、峰度和偏度组合等参数进行了实验。观察了不同隐写攻击下的数据提取率。
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Spatial Domain Texture Synthesis for Data Embedding
Secrete information is embedded in some cover medium through steganography. The contents of information as well as existence of information must be undetectable to attackers. Steganography is normally done by slightly altering the pixel values of cover image. We have used texture synthesis process for embedding the data instead of changing pixel values. Correlation at joining edges of patches to be stitched is considered for suitable patch selection. Energy of candidate patches is the parameter used to verify uniqueness of candidate patches and to identify patch in data extraction process. Along with energy, other parameters like mean as well as mean, variance, kurtosis and skewness combined are experimented. The data extraction rate in presence of different stego attacks is observed.
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