Data hiding in binary image for authentication and annotation
Data hiding in binary image for authentication and annotation
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DOI：
10.1109/tmm.2004.830814
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发表时间：
2004-08
影响因子：
7.3
通讯作者：
Min Wu;Bede Liu
中科院分区：
文献类型：
--
作者：
Min Wu;Bede Liu
本文提出了一种新的二值图像嵌入方法，包括扫描文本、数字和签名。该方法操纵“可翻转”像素来强制执行特定的基于块的关系，以便嵌入大量数据而不会引起明显的伪影。在嵌入前进行洗牌，以平衡区域间嵌入容量的不均匀性。隐藏的数据可以在不使用原始图像的情况下提取，也可以在少量配准标记的帮助下，经过高质量的打印和扫描后准确提取。所提出的数据嵌入方法可用于检测数字签名的未经授权使用，并对二进制文档进行注释或认证。本文还对鲁棒性和安全性问题进行了分析和讨论。
This paper proposes a new method to embed data in binary images, including scanned text, figures, and signatures. The method manipulates "flippable" pixels to enforce specific block-based relationship in order to embed a significant amount of data without causing noticeable artifacts. Shuffling is applied before embedding to equalize the uneven embedding capacity from region to region. The hidden data can be extracted without using the original image, and can also be accurately extracted after high quality printing and scanning with the help of a few registration marks. The proposed data embedding method can be used to detect unauthorized use of a digitized signature, and annotate or authenticate binary documents. The paper also presents analysis and discussions on robustness and security issues.