Pattern-Based Data Hiding for Binary Image Authentication by Connectivity-Preserving
Pattern-Based Data Hiding for Binary Image Authentication by Connectivity-Preserving
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DOI：
10.1109/tmm.2006.887990
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发表时间：
2007-04
影响因子：
7.3
通讯作者：
Huijuan Yang;A. Kot
中科院分区：
文献类型：
--
作者：
Huijuan Yang;A. Kot
本文提出了一种新的用于二值图像认证的盲数据隐藏方法，旨在保持局部邻域像素的连通性。通过在以像素为中心的3 × 3移动窗口中施加三个过渡标准来确定像素的“可翻转性”。水印嵌入过程中块的“可嵌入性”是不变的，因此水印的提取不需要参考原始图像。宿主图像的“不均匀可嵌入性”通过仅在那些“可嵌入”块中嵌入水印来处理。以保证水印图像的视觉质量的方式选择位置。研究了不同类型的块，并比较了它们增加容量的能力。解决了如何在不同的块方案中定位块中的“可嵌入”像素的问题，这有助于将密码签名作为硬水印来确保图像的完整性和真实性。讨论了安全考虑因素、视觉质量与容量的关系、隐写分析的应对措施以及计算负载分析。与现有方法的比较表明了该方案的优越性
In this paper, a novel blind data hiding method for binary images authentication aims at preserving the connectivity of pixels in a local neighborhood is proposed. The "flippability" of a pixel is determined by imposing three transition criteria in a 3 times 3 moving window centered at the pixel. The "embeddability" of a block is invariant in the watermark embedding process, hence the watermark can be extracted without referring to the original image. The "uneven embeddability" of the host image is handled by embedding the watermark only in those "embeddable" blocks. The locations are chosen in such a way that the visual quality of the watermarked image is guaranteed. Different types of blocks are studied and their abilities to increase the capacity are compared. The problem of how to locate the "embeddable" pixels in a block for different block schemes is addressed which facilitates the incorporation of the cryptographic signature as the hard authenticator watermark to ensure integrity and authenticity of the image. Discussions on the security considerations, visual quality against capacity, counter measures against steganalysis and analysis of the computational load are provided. Comparisons with prior methods show superiority of the proposed scheme